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Diffstat (limited to '')
| -rw-r--r-- | src/parser_yang.c | 4868 |
1 files changed, 4868 insertions, 0 deletions
diff --git a/src/parser_yang.c b/src/parser_yang.c new file mode 100644 index 0000000..8511d26 --- /dev/null +++ b/src/parser_yang.c @@ -0,0 +1,4868 @@ +/** + * @file parser_yang.c + * @author Michal Vasko <mvasko@cesnet.cz> + * @brief YANG parser + * + * Copyright (c) 2018 - 2024 CESNET, z.s.p.o. + * + * This source code is licensed under BSD 3-Clause License (the "License"). + * You may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * https://opensource.org/licenses/BSD-3-Clause + */ +#include "parser_internal.h" + +#include <assert.h> +#include <ctype.h> +#include <errno.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "context.h" +#include "dict.h" +#include "in_internal.h" +#include "log.h" +#include "ly_common.h" +#include "parser_schema.h" +#include "path.h" +#include "set.h" +#include "tree.h" +#include "tree_edit.h" +#include "tree_schema.h" +#include "tree_schema_free.h" +#include "tree_schema_internal.h" + +struct lys_glob_unres; + +/** + * @brief Insert WORD into the libyang context's dictionary and store as TARGET. + * + * @param[in] CTX yang parser context to access libyang context. + * @param[in] BUF buffer in case the word is not a constant and can be inserted directly (zero-copy) + * @param[out] TARGET variable where to store the pointer to the inserted value. + * @param[in] WORD string to store. + * @param[in] LEN length of the string in WORD to store. + */ +#define INSERT_WORD_GOTO(CTX, BUF, TARGET, WORD, LEN, RET, LABEL) \ + if (BUF) {LY_CHECK_GOTO(RET = lydict_insert_zc(PARSER_CTX(CTX), WORD, &(TARGET)), LABEL);}\ + else {LY_CHECK_GOTO(RET = lydict_insert(PARSER_CTX(CTX), LEN ? WORD : "", LEN, &(TARGET)), LABEL);} + +/** + * @brief Read from the IN structure COUNT items. Also updates the indent value in yang parser context + * + * @param[in] CTX yang parser context to update its indent value. + * @param[in] COUNT number of items for which the DATA pointer is supposed to move on. + */ +#define MOVE_INPUT(CTX, COUNT) ly_in_skip((CTX)->in, COUNT);(CTX)->indent+=COUNT + +/** + * @brief Loop through all substatements. Starts a for loop and ::YANG_READ_SUBSTMT_NEXT_ITER must be used at its end. + * + * @param[in] CTX yang parser context. + * @param[out] KW YANG keyword read. + * @param[out] WORD Pointer to the keyword itself. + * @param[out] WORD_LEN Length of the keyword. + * @param[out] RET Variable for error storing. + * @param[in] ERR_LABEL Label to go to on error. + */ +#define YANG_READ_SUBSTMT_FOR_GOTO(CTX, KW, WORD, WORD_LEN, RET, ERR_LABEL) \ + ly_bool __loop_end = 0; \ + if ((RET = get_keyword(CTX, &KW, &WORD, &WORD_LEN))) { \ + goto ERR_LABEL; \ + } \ + if (KW == LY_STMT_SYNTAX_SEMICOLON) { \ + __loop_end = 1; \ + } else if (KW != LY_STMT_SYNTAX_LEFT_BRACE) { \ + LOGVAL_PARSER(CTX, LYVE_SYNTAX_YANG, "Invalid keyword \"%s\", expected \";\" or \"{\".", lyplg_ext_stmt2str(KW)); \ + RET = LY_EVALID; \ + goto ERR_LABEL; \ + } else { \ + YANG_READ_SUBSTMT_NEXT_ITER(CTX, KW, WORD, WORD_LEN, NULL, RET, ERR_LABEL); \ + } \ + while (!__loop_end) + +/** + * @brief Next iteration of ::YANG_READ_SUBSTMT_FOR_GOTO loop. + * + * @param[in] CTX yang parser context. + * @param[out] KW YANG keyword read. + * @param[out] WORD Pointer to the keyword itself. + * @param[out] WORD_LEN Length of the keyword. + * @param[in] EXTS Final extension instance array to store. + * @param[out] RET Variable for error storing. + * @param[in] ERR_LABEL Label to go to on error. + */ +#define YANG_READ_SUBSTMT_NEXT_ITER(CTX, KW, WORD, WORD_LEN, EXTS, RET, ERR_LABEL) \ + if ((RET = get_keyword(CTX, &KW, &WORD, &WORD_LEN))) { \ + goto ERR_LABEL; \ + } \ + if (KW == LY_STMT_SYNTAX_RIGHT_BRACE) { \ + if (EXTS && (RET = ly_set_add(&(CTX)->main_ctx->ext_inst, (EXTS), 1, NULL))) { \ + goto ERR_LABEL; \ + } \ + __loop_end = 1; \ + } + +LY_ERR parse_container(struct lysp_yang_ctx *ctx, struct lysp_node *parent, struct lysp_node **siblings); +LY_ERR parse_uses(struct lysp_yang_ctx *ctx, struct lysp_node *parent, struct lysp_node **siblings); +LY_ERR parse_choice(struct lysp_yang_ctx *ctx, struct lysp_node *parent, struct lysp_node **siblings); +LY_ERR parse_case(struct lysp_yang_ctx *ctx, struct lysp_node *parent, struct lysp_node **siblings); +LY_ERR parse_list(struct lysp_yang_ctx *ctx, struct lysp_node *parent, struct lysp_node **siblings); +LY_ERR parse_grouping(struct lysp_yang_ctx *ctx, struct lysp_node *parent, struct lysp_node_grp **groupings); + +/** + * @brief Add another character to dynamic buffer, a low-level function. + * + * Enlarge if needed. Updates \p input as well as \p buf_used. + * + * @param[in] ctx libyang context for logging. + * @param[in,out] in Input structure. + * @param[in] len Number of bytes to get from the input string and copy into the buffer. + * @param[in,out] buf Buffer to use, can be moved by realloc(). + * @param[in,out] buf_len Current size of the buffer. + * @param[in,out] buf_used Currently used characters of the buffer. + * @return LY_ERR values. + */ +LY_ERR +buf_add_char(struct ly_ctx *ctx, struct ly_in *in, size_t len, char **buf, size_t *buf_len, size_t *buf_used) +{ +#define BUF_STEP 16; + if (*buf_len <= (*buf_used) + len) { + *buf_len += BUF_STEP; + *buf = ly_realloc(*buf, *buf_len); + LY_CHECK_ERR_RET(!*buf, LOGMEM(ctx), LY_EMEM); + } + if (*buf_used) { + ly_in_read(in, &(*buf)[*buf_used], len); + } else { + ly_in_read(in, *buf, len); + } + + (*buf_used) += len; + return LY_SUCCESS; +#undef BUF_STEP +} + +/** + * @brief Store a single UTF8 character. It depends whether in a dynamically-allocated buffer or just as a pointer to the data. + * + * @param[in] ctx yang parser context for logging. + * @param[in] arg Type of the input string to select method of checking character validity. + * @param[in,out] word_p Word pointer. If buffer (\p word_b) was not yet needed, it is just a pointer to the first + * stored character. If buffer was needed (\p word_b is non-NULL or \p need_buf is set), it is pointing to the buffer. + * @param[in,out] word_len Current length of the word pointed to by \p word_p. + * @param[in,out] word_b Word buffer. Is kept NULL as long as it is not requested (word is a substring of the data). + * @param[in,out] buf_len Current length of \p word_b. + * @param[in] need_buf Flag if the dynamically allocated buffer is required. + * @param[in,out] prefix Storage for internally used flag in case of possible prefixed identifiers: + * 0 - colon not yet found (no prefix) + * 1 - \p c is the colon character + * 2 - prefix already processed, now processing the identifier + * @return LY_ERR values. + */ +LY_ERR +buf_store_char(struct lysp_yang_ctx *ctx, enum yang_arg arg, char **word_p, size_t *word_len, + char **word_b, size_t *buf_len, ly_bool need_buf, uint8_t *prefix) +{ + uint32_t c; + size_t len; + + /* check valid combination of input paremeters - if need_buf specified, word_b must be provided */ + assert(!need_buf || (need_buf && word_b)); + + /* get UTF8 code point (and number of bytes coding the character) */ + LY_CHECK_ERR_RET(ly_getutf8(&ctx->in->current, &c, &len), + LOGVAL_PARSER(ctx, LY_VCODE_INCHAR, ctx->in->current[-len]), LY_EVALID); + ctx->in->current -= len; + if (c == '\n') { + ctx->indent = 0; + LY_IN_NEW_LINE(ctx->in); + } else { + /* note - even the multibyte character is count as 1 */ + ++ctx->indent; + } + + /* check character validity */ + switch (arg) { + case Y_IDENTIF_ARG: + LY_CHECK_RET(lysp_check_identifierchar((struct lysp_ctx *)ctx, c, !(*word_len), NULL)); + break; + case Y_PREF_IDENTIF_ARG: + LY_CHECK_RET(lysp_check_identifierchar((struct lysp_ctx *)ctx, c, !(*word_len), prefix)); + break; + case Y_STR_ARG: + case Y_MAYBE_STR_ARG: + LY_CHECK_RET(lysp_check_stringchar((struct lysp_ctx *)ctx, c)); + break; + } + + if (word_b && *word_b) { + /* add another character into buffer */ + if (buf_add_char(PARSER_CTX(ctx), ctx->in, len, word_b, buf_len, word_len)) { + return LY_EMEM; + } + + /* in case of realloc */ + *word_p = *word_b; + } else if (word_b && need_buf) { + /* first time we need a buffer, copy everything read up to now */ + if (*word_len) { + *word_b = malloc(*word_len); + LY_CHECK_ERR_RET(!*word_b, LOGMEM(PARSER_CTX(ctx)), LY_EMEM); + *buf_len = *word_len; + memcpy(*word_b, *word_p, *word_len); + } + + /* add this new character into buffer */ + if (buf_add_char(PARSER_CTX(ctx), ctx->in, len, word_b, buf_len, word_len)) { + return LY_EMEM; + } + + /* in case of realloc */ + *word_p = *word_b; + } else { + /* just remember the first character pointer */ + if (!*word_p) { + *word_p = (char *)ctx->in->current; + } + /* ... and update the word's length */ + (*word_len) += len; + ly_in_skip(ctx->in, len); + } + + return LY_SUCCESS; +} + +/** + * @brief Skip YANG comment in data. + * + * @param[in] ctx yang parser context for logging. + * @param[in] comment Type of the comment to process: + * 1 for a one-line comment, + * 2 for a block comment. + * @return LY_ERR values. + */ +LY_ERR +skip_comment(struct lysp_yang_ctx *ctx, uint8_t comment) +{ + /* internal statuses: */ +#define COMMENT_NO 0 /* comment ended */ +#define COMMENT_LINE 1 /* in line comment */ +#define COMMENT_BLOCK 2 /* in block comment */ +#define COMMENT_BLOCK_END 3 /* in block comment with last read character '*' */ + + while (ctx->in->current[0] && comment) { + switch (comment) { + case COMMENT_LINE: + if (ctx->in->current[0] == '\n') { + comment = COMMENT_NO; + LY_IN_NEW_LINE(ctx->in); + } + break; + case COMMENT_BLOCK: + if (ctx->in->current[0] == '*') { + comment = COMMENT_BLOCK_END; + } else if (ctx->in->current[0] == '\n') { + LY_IN_NEW_LINE(ctx->in); + } + break; + case COMMENT_BLOCK_END: + if (ctx->in->current[0] == '/') { + comment = COMMENT_NO; + } else if (ctx->in->current[0] != '*') { + if (ctx->in->current[0] == '\n') { + LY_IN_NEW_LINE(ctx->in); + } + comment = COMMENT_BLOCK; + } + break; + default: + LOGINT_RET(PARSER_CTX(ctx)); + } + + if (ctx->in->current[0] == '\n') { + ctx->indent = 0; + } else { + ++ctx->indent; + } + ++ctx->in->current; + } + + if (!ctx->in->current[0] && (comment >= COMMENT_BLOCK)) { + LOGVAL_PARSER(ctx, LYVE_SYNTAX, "Unexpected end-of-input, non-terminated comment."); + return LY_EVALID; + } + + return LY_SUCCESS; + +#undef COMMENT_NO +#undef COMMENT_LINE +#undef COMMENT_BLOCK +#undef COMMENT_BLOCK_END +} + +/** + * @brief Read a quoted string from data. + * + * @param[in] ctx yang parser context for logging. + * @param[in] arg Type of YANG keyword argument expected. + * @param[out] word_p Pointer to the read quoted string. + * @param[out] word_b Pointer to a dynamically-allocated buffer holding the read quoted string. If not needed, + * set to NULL. Otherwise equal to \p word_p. + * @param[out] word_len Length of the read quoted string. + * @param[out] buf_len Length of the dynamically-allocated buffer \p word_b. + * @param[in] indent Current indent (number of YANG spaces). Needed for correct multi-line string + * indenation in the final quoted string. + * @return LY_ERR values. + */ +static LY_ERR +read_qstring(struct lysp_yang_ctx *ctx, enum yang_arg arg, char **word_p, char **word_b, + size_t *word_len, size_t *buf_len) +{ + /* string parsing status: */ +#define STRING_ENDED 0 /* string ended */ +#define STRING_SINGLE_QUOTED 1 /* string with ' */ +#define STRING_DOUBLE_QUOTED 2 /* string with " */ +#define STRING_DOUBLE_QUOTED_ESCAPED 3 /* string with " with last character \ */ +#define STRING_PAUSED_NEXTSTRING 4 /* string finished, now skipping whitespaces looking for + */ +#define STRING_PAUSED_CONTINUE 5 /* string continues after +, skipping whitespaces */ + + uint8_t string; + uint64_t block_indent = 0, current_indent = 0; + ly_bool need_buf = 0; + uint8_t prefix = 0; + const char *c; + uint64_t trailing_ws = 0; /* current number of stored trailing whitespace characters */ + + if (ctx->in->current[0] == '\"') { + string = STRING_DOUBLE_QUOTED; + current_indent = block_indent = ctx->indent + 1; + } else { + assert(ctx->in->current[0] == '\''); + string = STRING_SINGLE_QUOTED; + } + MOVE_INPUT(ctx, 1); + + while (ctx->in->current[0] && string) { + switch (string) { + case STRING_SINGLE_QUOTED: + if (ctx->in->current[0] == '\'') { + /* string may be finished, but check for + */ + string = STRING_PAUSED_NEXTSTRING; + MOVE_INPUT(ctx, 1); + } else { + /* check and store character */ + LY_CHECK_RET(buf_store_char(ctx, arg, word_p, word_len, word_b, buf_len, need_buf, &prefix)); + } + break; + case STRING_DOUBLE_QUOTED: + switch (ctx->in->current[0]) { + case '\"': + /* string may be finished, but check for + */ + string = STRING_PAUSED_NEXTSTRING; + MOVE_INPUT(ctx, 1); + trailing_ws = 0; + break; + case '\\': + /* special character following */ + string = STRING_DOUBLE_QUOTED_ESCAPED; + + /* the backslash sequence is substituted, so we will need a buffer to store the result */ + need_buf = 1; + + /* move forward to the escaped character */ + ++ctx->in->current; + + /* note that the trailing whitespaces are supposed to be trimmed before substitution of + * backslash-escaped characters (RFC 7950, 6.1.3), so we have to zero the trailing whitespaces counter */ + trailing_ws = 0; + + /* since the backslash-escaped character is handled as first non-whitespace character, stop eating indentation */ + current_indent = block_indent; + break; + case ' ': + if (current_indent < block_indent) { + ++current_indent; + MOVE_INPUT(ctx, 1); + } else { + /* check and store whitespace character */ + LY_CHECK_RET(buf_store_char(ctx, arg, word_p, word_len, word_b, buf_len, need_buf, &prefix)); + trailing_ws++; + } + break; + case '\t': + if (current_indent < block_indent) { + assert(need_buf); + current_indent += Y_TAB_SPACES; + ctx->indent += Y_TAB_SPACES; + for ( ; current_indent > block_indent; --current_indent, --ctx->indent) { + /* store leftover spaces from the tab */ + c = ctx->in->current; + ctx->in->current = " "; + LY_CHECK_RET(buf_store_char(ctx, arg, word_p, word_len, word_b, buf_len, need_buf, &prefix)); + ctx->in->current = c; + trailing_ws++; + } + ++ctx->in->current; + } else { + /* check and store whitespace character */ + LY_CHECK_RET(buf_store_char(ctx, arg, word_p, word_len, word_b, buf_len, need_buf, &prefix)); + trailing_ws++; + /* additional characters for indentation - only 1 was count in buf_store_char */ + ctx->indent += Y_TAB_SPACES - 1; + } + break; + case '\r': + /* newline may be escaped */ + if ((ctx->in->current[1] != '\n') && strncmp(&ctx->in->current[1], "\\n", 2)) { + LOGVAL_PARSER(ctx, LY_VCODE_INCHAR, ctx->in->current[0]); + return LY_EVALID; + } + + /* skip this character, do not store it */ + ++ctx->in->current; + /* fallthrough */ + case '\n': + if (block_indent) { + /* we will be removing the indents so we need our own buffer */ + need_buf = 1; + + /* remove trailing tabs and spaces */ + (*word_len) = *word_len - trailing_ws; + + /* restart indentation */ + current_indent = 0; + } + + /* check and store character */ + LY_CHECK_RET(buf_store_char(ctx, arg, word_p, word_len, word_b, buf_len, need_buf, &prefix)); + + /* reset context indentation counter for possible string after this one */ + ctx->indent = 0; + trailing_ws = 0; + break; + default: + /* first non-whitespace character, stop eating indentation */ + current_indent = block_indent; + + /* check and store character */ + LY_CHECK_RET(buf_store_char(ctx, arg, word_p, word_len, word_b, buf_len, need_buf, &prefix)); + trailing_ws = 0; + break; + } + break; + case STRING_DOUBLE_QUOTED_ESCAPED: + /* string encoded characters */ + c = ctx->in->current; + switch (ctx->in->current[0]) { + case 'n': + ctx->in->current = "\n"; + /* fix false newline count in buf_store_char() */ + ctx->in->line--; + break; + case 't': + ctx->in->current = "\t"; + break; + case '\"': + case '\\': + /* ok as is */ + break; + default: + LOGVAL_PARSER(ctx, LYVE_SYNTAX_YANG, "Double-quoted string unknown special character '\\%c'.", + ctx->in->current[0]); + return LY_EVALID; + } + + /* check and store character */ + LY_CHECK_RET(buf_store_char(ctx, arg, word_p, word_len, word_b, buf_len, need_buf, &prefix)); + + string = STRING_DOUBLE_QUOTED; + ctx->in->current = c + 1; + break; + case STRING_PAUSED_NEXTSTRING: + switch (ctx->in->current[0]) { + case '+': + /* string continues */ + string = STRING_PAUSED_CONTINUE; + need_buf = 1; + break; + case '\r': + if (ctx->in->current[1] != '\n') { + LOGVAL_PARSER(ctx, LY_VCODE_INCHAR, ctx->in->current[0]); + return LY_EVALID; + } + MOVE_INPUT(ctx, 1); + /* fallthrough */ + case '\n': + LY_IN_NEW_LINE(ctx->in); + /* fall through */ + case ' ': + case '\t': + /* just skip */ + break; + default: + /* string is finished */ + goto string_end; + } + MOVE_INPUT(ctx, 1); + break; + case STRING_PAUSED_CONTINUE: + switch (ctx->in->current[0]) { + case '\r': + if (ctx->in->current[1] != '\n') { + LOGVAL_PARSER(ctx, LY_VCODE_INCHAR, ctx->in->current[0]); + return LY_EVALID; + } + MOVE_INPUT(ctx, 1); + /* fallthrough */ + case '\n': + LY_IN_NEW_LINE(ctx->in); + /* fall through */ + case ' ': + case '\t': + /* skip */ + MOVE_INPUT(ctx, 1); + break; + case '\'': + string = STRING_SINGLE_QUOTED; + MOVE_INPUT(ctx, 1); + break; + case '\"': + string = STRING_DOUBLE_QUOTED; + MOVE_INPUT(ctx, 1); + break; + case '/': + if (ctx->in->current[1] == '/') { + /* one-line comment */ + MOVE_INPUT(ctx, 2); + LY_CHECK_RET(skip_comment(ctx, 1)); + break; + } else if (ctx->in->current[1] == '*') { + /* block comment */ + MOVE_INPUT(ctx, 2); + LY_CHECK_RET(skip_comment(ctx, 2)); + break; + } + /* not a comment after all */ + /* fallthrough */ + default: + /* it must be quoted again */ + LOGVAL_PARSER(ctx, LYVE_SYNTAX_YANG, "Both string parts divided by '+' must be quoted."); + return LY_EVALID; + } + break; + default: + return LY_EINT; + } + } + +string_end: + if ((arg <= Y_PREF_IDENTIF_ARG) && !(*word_len)) { + /* empty identifier */ + LOGVAL_PARSER(ctx, LYVE_SYNTAX_YANG, "Statement argument is required."); + return LY_EVALID; + } + return LY_SUCCESS; + +#undef STRING_ENDED +#undef STRING_SINGLE_QUOTED +#undef STRING_DOUBLE_QUOTED +#undef STRING_DOUBLE_QUOTED_ESCAPED +#undef STRING_PAUSED_NEXTSTRING +#undef STRING_PAUSED_CONTINUE +} + +/** + * @brief Get another YANG string from the raw data. + * + * @param[in] ctx Yang parser context for logging. + * @param[in] arg Type of YANG keyword argument expected. + * @param[out] flags Optional output argument to get flag of the argument's quoting (LYS_*QUOTED - see + * [schema node flags](@ref snodeflags)) + * @param[out] word_p Pointer to the read string. Can return NULL if @p arg is #Y_MAYBE_STR_ARG. + * @param[out] word_b Pointer to a dynamically-allocated buffer holding the read string. If not needed, + * set to NULL. Otherwise equal to @p word_p. + * @param[out] word_len Length of the read string. + * @return LY_ERR values. + */ +LY_ERR +get_argument(struct lysp_yang_ctx *ctx, enum yang_arg arg, uint16_t *flags, char **word_p, + char **word_b, size_t *word_len) +{ + LY_ERR ret; + size_t buf_len = 0; + uint8_t prefix = 0; + ly_bool str_end = 0; + + /* word buffer - dynamically allocated */ + *word_b = NULL; + + /* word pointer - just a pointer to data */ + *word_p = NULL; + + *word_len = 0; + while (!str_end) { + switch (ctx->in->current[0]) { + case '\'': + case '\"': + if (*word_len) { + /* invalid - quotes cannot be in unquoted string and only optsep, ; or { can follow it */ + LOGVAL_PARSER(ctx, LY_VCODE_INSTREXP, 1, ctx->in->current, + "unquoted string character, optsep, semicolon or opening brace"); + ret = LY_EVALID; + goto error; + } + if (flags) { + (*flags) |= (ctx->in->current[0] == '\'') ? LYS_SINGLEQUOTED : LYS_DOUBLEQUOTED; + } + + LY_CHECK_GOTO(ret = read_qstring(ctx, arg, word_p, word_b, word_len, &buf_len), error); + if (!*word_p) { + /* do not return NULL word */ + *word_p = ""; + } + str_end = 1; + break; + case '/': + if (ctx->in->current[1] == '/') { + /* one-line comment */ + MOVE_INPUT(ctx, 2); + LY_CHECK_GOTO(ret = skip_comment(ctx, 1), error); + } else if (ctx->in->current[1] == '*') { + /* block comment */ + MOVE_INPUT(ctx, 2); + LY_CHECK_GOTO(ret = skip_comment(ctx, 2), error); + } else { + /* not a comment after all */ + LY_CHECK_GOTO(ret = buf_store_char(ctx, arg, word_p, word_len, word_b, &buf_len, 0, &prefix), error); + } + break; + case ' ': + if (*word_len) { + /* word is finished */ + str_end = 1; + break; + } + MOVE_INPUT(ctx, 1); + break; + case '\t': + if (*word_len) { + /* word is finished */ + str_end = 1; + break; + } + /* tabs count for 8 spaces */ + ctx->indent += Y_TAB_SPACES; + + ++ctx->in->current; + break; + case '\r': + if (ctx->in->current[1] != '\n') { + LOGVAL_PARSER(ctx, LY_VCODE_INCHAR, ctx->in->current[0]); + ret = LY_EVALID; + goto error; + } + MOVE_INPUT(ctx, 1); + /* fallthrough */ + case '\n': + if (*word_len) { + /* word is finished */ + str_end = 1; + break; + } + LY_IN_NEW_LINE(ctx->in); + MOVE_INPUT(ctx, 1); + + /* reset indent */ + ctx->indent = 0; + break; + case ';': + case '{': + if (*word_len || (arg == Y_MAYBE_STR_ARG)) { + /* word is finished */ + str_end = 1; + break; + } + + LOGVAL_PARSER(ctx, LY_VCODE_INSTREXP, 1, ctx->in->current, "an argument"); + ret = LY_EVALID; + goto error; + case '}': + /* invalid - braces cannot be in unquoted string (opening braces terminates the string and can follow it) */ + LOGVAL_PARSER(ctx, LY_VCODE_INSTREXP, 1, ctx->in->current, + "unquoted string character, optsep, semicolon or opening brace"); + ret = LY_EVALID; + goto error; + case '\0': + /* unexpected EOF */ + LOGVAL_PARSER(ctx, LY_VCODE_EOF); + ret = LY_EVALID; + goto error; + default: + LY_CHECK_GOTO(ret = buf_store_char(ctx, arg, word_p, word_len, word_b, &buf_len, 0, &prefix), error); + break; + } + } + + /* terminating NULL byte for buf */ + if (*word_b) { + (*word_b) = ly_realloc(*word_b, (*word_len) + 1); + LY_CHECK_ERR_RET(!(*word_b), LOGMEM(PARSER_CTX(ctx)), LY_EMEM); + (*word_b)[*word_len] = '\0'; + *word_p = *word_b; + } + + return LY_SUCCESS; + +error: + free(*word_b); + *word_b = NULL; + return ret; +} + +/** + * @brief Get another YANG keyword from the raw data. + * + * @param[in] ctx yang parser context for logging. + * @param[out] kw YANG keyword read. + * @param[out] word_p Pointer to the keyword in the data. Useful for extension instances. + * @param[out] word_len Length of the keyword in the data. Useful for extension instances. + * @return LY_ERR values. + */ +LY_ERR +get_keyword(struct lysp_yang_ctx *ctx, enum ly_stmt *kw, char **word_p, size_t *word_len) +{ + uint8_t prefix; + const char *word_start; + size_t len; + + if (word_p) { + *word_p = NULL; + *word_len = 0; + } + + /* first skip "optsep", comments */ + while (ctx->in->current[0]) { + switch (ctx->in->current[0]) { + case '/': + if (ctx->in->current[1] == '/') { + /* one-line comment */ + MOVE_INPUT(ctx, 2); + LY_CHECK_RET(skip_comment(ctx, 1)); + } else if (ctx->in->current[1] == '*') { + /* block comment */ + MOVE_INPUT(ctx, 2); + LY_CHECK_RET(skip_comment(ctx, 2)); + } else { + /* error - not a comment after all, keyword cannot start with slash */ + LOGVAL_PARSER(ctx, LYVE_SYNTAX_YANG, "Invalid identifier first character '/'."); + return LY_EVALID; + } + continue; + case '\n': + /* skip whitespaces (optsep) */ + LY_IN_NEW_LINE(ctx->in); + ctx->indent = 0; + break; + case ' ': + /* skip whitespaces (optsep) */ + ++ctx->indent; + break; + case '\t': + /* skip whitespaces (optsep) */ + ctx->indent += Y_TAB_SPACES; + break; + case '\r': + /* possible CRLF endline */ + if (ctx->in->current[1] == '\n') { + break; + } + /* fallthrough */ + default: + /* either a keyword start or an invalid character */ + goto keyword_start; + } + + ly_in_skip(ctx->in, 1); + } + +keyword_start: + word_start = ctx->in->current; + *kw = lysp_match_kw(ctx->in, &ctx->indent); + + if (*kw == LY_STMT_SYNTAX_SEMICOLON) { + goto success; + } else if (*kw == LY_STMT_SYNTAX_LEFT_BRACE) { + ctx->depth++; + if (ctx->depth > LY_MAX_BLOCK_DEPTH) { + LOGERR(PARSER_CTX(ctx), LY_EINVAL, "The maximum number of block nestings has been exceeded."); + return LY_EINVAL; + } + goto success; + } else if (*kw == LY_STMT_SYNTAX_RIGHT_BRACE) { + ctx->depth--; + goto success; + } + + if (*kw != LY_STMT_NONE) { + /* make sure we have the whole keyword */ + switch (ctx->in->current[0]) { + case '\r': + if (ctx->in->current[1] != '\n') { + LOGVAL_PARSER(ctx, LY_VCODE_INCHAR, ctx->in->current[0]); + return LY_EVALID; + } + MOVE_INPUT(ctx, 1); + /* fallthrough */ + case '\n': + case '\t': + case ' ': + /* mandatory "sep" is just checked, not eaten so nothing in the context is updated */ + break; + case ':': + /* keyword is not actually a keyword, but prefix of an extension. + * To avoid repeated check of the prefix syntax, move to the point where the colon was read + * and we will be checking the keyword (extension instance) itself */ + prefix = 1; + MOVE_INPUT(ctx, 1); + goto extension; + case '{': + case ';': + /* allowed only for input and output statements which are without arguments */ + if ((*kw == LY_STMT_INPUT) || (*kw == LY_STMT_OUTPUT)) { + break; + } + /* fall through */ + default: + MOVE_INPUT(ctx, 1); + LOGVAL_PARSER(ctx, LY_VCODE_INSTREXP, (int)(ctx->in->current - word_start), word_start, + "a keyword followed by a separator"); + return LY_EVALID; + } + } else { + /* still can be an extension */ + prefix = 0; + +extension: + while (ctx->in->current[0] && (ctx->in->current[0] != ' ') && (ctx->in->current[0] != '\t') && + (ctx->in->current[0] != '\n') && (ctx->in->current[0] != '\r') && (ctx->in->current[0] != '{') && + (ctx->in->current[0] != ';')) { + uint32_t c = 0; + + LY_CHECK_ERR_RET(ly_getutf8(&ctx->in->current, &c, &len), + LOGVAL_PARSER(ctx, LY_VCODE_INCHAR, ctx->in->current[-len]), LY_EVALID); + ++ctx->indent; + /* check character validity */ + LY_CHECK_RET(lysp_check_identifierchar((struct lysp_ctx *)ctx, c, + ctx->in->current - len == word_start ? 1 : 0, &prefix)); + } + if (!ctx->in->current[0]) { + LOGVAL_PARSER(ctx, LY_VCODE_EOF); + return LY_EVALID; + } + + /* prefix is mandatory for extension instances */ + if (prefix != 2) { + LOGVAL_PARSER(ctx, LY_VCODE_INSTREXP, (int)(ctx->in->current - word_start), word_start, "a keyword"); + return LY_EVALID; + } + + *kw = LY_STMT_EXTENSION_INSTANCE; + } + +success: + if (word_p) { + *word_p = (char *)word_start; + *word_len = ctx->in->current - word_start; + } + + return LY_SUCCESS; +} + +/** + * @brief Parse extension instance substatements. + * + * @param[in] ctx yang parser context for logging. + * @param[in] kw Statement keyword value matching @p word value. + * @param[in] word Extension instance substatement name (keyword). + * @param[in] word_len Extension instance substatement name length. + * @param[in,out] child Children of this extension instance to add to. + * @return LY_ERR values. + */ +static LY_ERR +parse_ext_substmt(struct lysp_yang_ctx *ctx, enum ly_stmt kw, char *word, size_t word_len, + struct lysp_stmt **child) +{ + char *buf; + LY_ERR ret = LY_SUCCESS; + enum ly_stmt child_kw; + struct lysp_stmt *stmt, *par_child; + + stmt = calloc(1, sizeof *stmt); + LY_CHECK_ERR_RET(!stmt, LOGMEM(NULL), LY_EMEM); + + /* insert into parent statements */ + if (!*child) { + *child = stmt; + } else { + for (par_child = *child; par_child->next; par_child = par_child->next) {} + par_child->next = stmt; + } + + /* statement */ + LY_CHECK_RET(lydict_insert(PARSER_CTX(ctx), word, word_len, &stmt->stmt)); + + /* get optional argument */ + LY_CHECK_RET(get_argument(ctx, Y_MAYBE_STR_ARG, &stmt->flags, &word, &buf, &word_len)); + if (word) { + INSERT_WORD_GOTO(ctx, buf, stmt->arg, word, word_len, ret, cleanup); + } + + stmt->format = LY_VALUE_SCHEMA; + stmt->prefix_data = PARSER_CUR_PMOD(ctx); + stmt->kw = kw; + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, child_kw, word, word_len, ret, cleanup) { + LY_CHECK_GOTO(ret = parse_ext_substmt(ctx, child_kw, word, word_len, &stmt->child), cleanup) + YANG_READ_SUBSTMT_NEXT_ITER(ctx, child_kw, word, word_len, NULL, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse extension instance. + * + * @param[in] ctx yang parser context for logging. + * @param[in] ext_name Extension instance substatement name (keyword). + * @param[in] ext_name_len Extension instance substatement name length. + * @param[in] parent Current statement parent. + * @param[in] parent_stmt Type of @p parent statement. + * @param[in] parent_stmt_index In case of several @p parent_stmt, index of the relevant @p parent statement. + * @param[in,out] exts Extension instances to add to. + * @return LY_ERR values. + */ +static LY_ERR +parse_ext(struct lysp_yang_ctx *ctx, const char *ext_name, size_t ext_name_len, const void *parent, + enum ly_stmt parent_stmt, LY_ARRAY_COUNT_TYPE parent_stmt_index, struct lysp_ext_instance **exts) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + struct lysp_ext_instance *e; + enum ly_stmt kw; + + LY_ARRAY_NEW_RET(PARSER_CTX(ctx), *exts, e, LY_EMEM); + + if (!ly_strnchr(ext_name, ':', ext_name_len)) { + LOGVAL_PARSER(ctx, LYVE_SYNTAX, "Extension instance \"%.*s\" without the mandatory prefix.", + (int)ext_name_len, ext_name); + return LY_EVALID; + } + + /* store name */ + LY_CHECK_RET(lydict_insert(PARSER_CTX(ctx), ext_name, ext_name_len, &e->name)); + + /* get optional argument */ + LY_CHECK_RET(get_argument(ctx, Y_MAYBE_STR_ARG, NULL, &word, &buf, &word_len)); + if (word) { + INSERT_WORD_GOTO(ctx, buf, e->argument, word, word_len, ret, cleanup); + } + + /* store the rest of information */ + e->format = LY_VALUE_SCHEMA; + e->parsed = NULL; + e->prefix_data = PARSER_CUR_PMOD(ctx); + e->parent = (void *)parent; + e->parent_stmt = parent_stmt; + e->parent_stmt_index = parent_stmt_index; + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + LY_CHECK_GOTO(ret = parse_ext_substmt(ctx, kw, word, word_len, &e->child), cleanup) + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, NULL, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse a generic text field without specific constraints. Those are contact, organization, + * description, etc... + * + * @param[in] ctx yang parser context for logging. + * @param[in] parent Current statement parent. + * @param[in] parent_stmt Type of statement in @p value. + * @param[in] parent_stmt_index In case of several @p parent_stmt, index of the relevant @p parent statement. + * @param[in,out] value Place to store the parsed value. + * @param[in] arg Type of the YANG keyword argument (of the value). + * @param[out] flags Optional output argument to get flag of the argument's quoting (LYS_*QUOTED - see + * [schema node flags](@ref snodeflags)) + * @param[in,out] exts Extension instances to add to. + * @return LY_ERR values. + */ +static LY_ERR +parse_text_field(struct lysp_yang_ctx *ctx, const void *parent, enum ly_stmt parent_stmt, uint32_t parent_stmt_index, + const char **value, enum yang_arg arg, uint16_t *flags, struct lysp_ext_instance **exts) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + + if (*value) { + LOGVAL_PARSER(ctx, LY_VCODE_DUPSTMT, lyplg_ext_stmt2str(parent_stmt)); + return LY_EVALID; + } + + /* get value */ + LY_CHECK_RET(get_argument(ctx, arg, flags, &word, &buf, &word_len)); + + /* store value and spend buf if allocated */ + INSERT_WORD_GOTO(ctx, buf, *value, word, word_len, ret, cleanup); + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, parent, parent_stmt, parent_stmt_index, exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), lyplg_ext_stmt2str(parent_stmt)); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, NULL, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the yang-version statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] mod Module to fill. + * @return LY_ERR values. + */ +static LY_ERR +parse_yangversion(struct lysp_yang_ctx *ctx, struct lysp_module *mod) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + + if (mod->version) { + LOGVAL_PARSER(ctx, LY_VCODE_DUPSTMT, "yang-version"); + return LY_EVALID; + } + + /* get value */ + LY_CHECK_RET(get_argument(ctx, Y_STR_ARG, NULL, &word, &buf, &word_len)); + + if ((word_len == 1) && !strncmp(word, "1", word_len)) { + mod->version = LYS_VERSION_1_0; + } else if ((word_len == ly_strlen_const("1.1")) && !strncmp(word, "1.1", word_len)) { + mod->version = LYS_VERSION_1_1; + } else { + LOGVAL_PARSER(ctx, LY_VCODE_INVAL, (int)word_len, word, "yang-version"); + free(buf); + return LY_EVALID; + } + free(buf); + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, mod, LY_STMT_YANG_VERSION, 0, &mod->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "yang-version"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, NULL, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the belongs-to statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] submod Submodule to fill. + * @return LY_ERR values. + */ +static LY_ERR +parse_belongsto(struct lysp_yang_ctx *ctx, struct lysp_submodule *submod) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + + if (submod->prefix) { + LOGVAL_PARSER(ctx, LY_VCODE_DUPSTMT, "belongs-to"); + return LY_EVALID; + } + + /* get value, it must match the main module */ + LY_CHECK_RET(get_argument(ctx, Y_IDENTIF_ARG, NULL, &word, &buf, &word_len)); + if (ly_strncmp(PARSER_CUR_PMOD(ctx)->mod->name, word, word_len)) { + LOGVAL_PARSER(ctx, LYVE_SYNTAX_YANG, "Submodule \"belongs-to\" value \"%.*s\" does not match its module name \"%s\".", + (int)word_len, word, PARSER_CUR_PMOD(ctx)->mod->name); + free(buf); + return LY_EVALID; + } + free(buf); + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_PREFIX: + LY_CHECK_RET(parse_text_field(ctx, submod->prefix, LY_STMT_PREFIX, 0, &submod->prefix, Y_IDENTIF_ARG, NULL, + &submod->exts)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, submod, LY_STMT_BELONGS_TO, 0, &submod->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "belongs-to"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, NULL, ret, cleanup); + } + + /* mandatory substatements */ + if (!submod->prefix) { + LOGVAL_PARSER(ctx, LY_VCODE_MISSTMT, "prefix", "belongs-to"); + return LY_EVALID; + } + +cleanup: + return ret; +} + +/** + * @brief Parse the revision-date statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] rev Buffer to store the parsed value in. + * @param[in,out] exts Extension instances to add to. + * @return LY_ERR values. + */ +static LY_ERR +parse_revisiondate(struct lysp_yang_ctx *ctx, char *rev, struct lysp_ext_instance **exts) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + + if (rev[0]) { + LOGVAL_PARSER(ctx, LY_VCODE_DUPSTMT, "revision-date"); + return LY_EVALID; + } + + /* get value */ + LY_CHECK_RET(get_argument(ctx, Y_STR_ARG, NULL, &word, &buf, &word_len)); + + /* check value */ + if (lysp_check_date((struct lysp_ctx *)ctx, word, word_len, "revision-date")) { + free(buf); + return LY_EVALID; + } + + /* store value and spend buf if allocated */ + strncpy(rev, word, word_len); + free(buf); + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, rev, LY_STMT_REVISION_DATE, 0, exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "revision-date"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, NULL, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the include statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in] module_name Name of the module to check name collisions. + * @param[in,out] includes Parsed includes to add to. + * @return LY_ERR values. + */ +static LY_ERR +parse_include(struct lysp_yang_ctx *ctx, const char *module_name, struct lysp_include **includes) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + struct lysp_include *inc; + + LY_ARRAY_NEW_RET(PARSER_CTX(ctx), *includes, inc, LY_EMEM); + + /* get value */ + LY_CHECK_RET(get_argument(ctx, Y_IDENTIF_ARG, NULL, &word, &buf, &word_len)); + + INSERT_WORD_GOTO(ctx, buf, inc->name, word, word_len, ret, cleanup); + + /* submodules share the namespace with the module names, so there must not be + * a module of the same name in the context, no need for revision matching */ + if (!strcmp(module_name, inc->name) || ly_ctx_get_module_latest(PARSER_CTX(ctx), inc->name)) { + LOGVAL_PARSER(ctx, LY_VCODE_NAME2_COL, "module", "submodule", inc->name); + return LY_EVALID; + } + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_DESCRIPTION: + PARSER_CHECK_STMTVER2_RET(ctx, "description", "include"); + LY_CHECK_RET(parse_text_field(ctx, inc->dsc, LY_STMT_DESCRIPTION, 0, &inc->dsc, Y_STR_ARG, NULL, &inc->exts)); + break; + case LY_STMT_REFERENCE: + PARSER_CHECK_STMTVER2_RET(ctx, "reference", "include"); + LY_CHECK_RET(parse_text_field(ctx, inc->ref, LY_STMT_REFERENCE, 0, &inc->ref, Y_STR_ARG, NULL, &inc->exts)); + break; + case LY_STMT_REVISION_DATE: + LY_CHECK_RET(parse_revisiondate(ctx, inc->rev, &inc->exts)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, inc, LY_STMT_INCLUDE, 0, &inc->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "include"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, inc->exts, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the import statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in] module_prefix Prefix of the module to check prefix collisions. + * @param[in,out] imports Parsed imports to add to. + * @return LY_ERR values. + */ +static LY_ERR +parse_import(struct lysp_yang_ctx *ctx, const char *module_prefix, struct lysp_import **imports) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + struct lysp_import *imp; + + LY_ARRAY_NEW_RET(PARSER_CTX(ctx), *imports, imp, LY_EVALID); + + /* get value */ + LY_CHECK_RET(get_argument(ctx, Y_IDENTIF_ARG, NULL, &word, &buf, &word_len)); + INSERT_WORD_GOTO(ctx, buf, imp->name, word, word_len, ret, cleanup); + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_PREFIX: + LY_CHECK_RET(parse_text_field(ctx, imp->prefix, LY_STMT_PREFIX, 0, &imp->prefix, Y_IDENTIF_ARG, NULL, &imp->exts)); + LY_CHECK_RET(lysp_check_prefix((struct lysp_ctx *)ctx, *imports, module_prefix, &imp->prefix), LY_EVALID); + break; + case LY_STMT_DESCRIPTION: + PARSER_CHECK_STMTVER2_RET(ctx, "description", "import"); + LY_CHECK_RET(parse_text_field(ctx, imp->dsc, LY_STMT_DESCRIPTION, 0, &imp->dsc, Y_STR_ARG, NULL, &imp->exts)); + break; + case LY_STMT_REFERENCE: + PARSER_CHECK_STMTVER2_RET(ctx, "reference", "import"); + LY_CHECK_RET(parse_text_field(ctx, imp->ref, LY_STMT_REFERENCE, 0, &imp->ref, Y_STR_ARG, NULL, &imp->exts)); + break; + case LY_STMT_REVISION_DATE: + LY_CHECK_RET(parse_revisiondate(ctx, imp->rev, &imp->exts)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, imp, LY_STMT_IMPORT, 0, &imp->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "import"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, imp->exts, ret, cleanup); + } + + /* mandatory substatements */ + LY_CHECK_ERR_RET(!imp->prefix, LOGVAL_PARSER(ctx, LY_VCODE_MISSTMT, "prefix", "import"), LY_EVALID); + +cleanup: + return ret; +} + +/** + * @brief Parse the revision statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] revs Parsed revisions to add to. + * @return LY_ERR values. + */ +static LY_ERR +parse_revision(struct lysp_yang_ctx *ctx, struct lysp_revision **revs) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + struct lysp_revision *rev; + + LY_ARRAY_NEW_RET(PARSER_CTX(ctx), *revs, rev, LY_EMEM); + + /* get value */ + LY_CHECK_RET(get_argument(ctx, Y_STR_ARG, NULL, &word, &buf, &word_len)); + + /* check value */ + if (lysp_check_date((struct lysp_ctx *)ctx, word, word_len, "revision")) { + free(buf); + return LY_EVALID; + } + + strncpy(rev->date, word, word_len); + free(buf); + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_DESCRIPTION: + LY_CHECK_RET(parse_text_field(ctx, rev->dsc, LY_STMT_DESCRIPTION, 0, &rev->dsc, Y_STR_ARG, NULL, &rev->exts)); + break; + case LY_STMT_REFERENCE: + LY_CHECK_RET(parse_text_field(ctx, rev->ref, LY_STMT_REFERENCE, 0, &rev->ref, Y_STR_ARG, NULL, &rev->exts)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, rev, LY_STMT_REVISION, 0, &rev->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "revision"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, rev->exts, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse a generic text field that can have more instances such as base. + * + * @param[in] ctx yang parser context for logging. + * @param[in] parent Current statement parent. + * @param[in] parent_stmt Type of @p parent statement. + * @param[in,out] texts Parsed values to add to. + * @param[in] arg Type of the expected argument. + * @param[in,out] exts Extension instances to add to. + * @return LY_ERR values. + */ +static LY_ERR +parse_text_fields(struct lysp_yang_ctx *ctx, enum ly_stmt parent_stmt, const char ***texts, enum yang_arg arg, + struct lysp_ext_instance **exts) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + const char **item; + size_t word_len; + enum ly_stmt kw; + + /* allocate new pointer */ + LY_ARRAY_NEW_RET(PARSER_CTX(ctx), *texts, item, LY_EMEM); + + /* get value */ + LY_CHECK_RET(get_argument(ctx, arg, NULL, &word, &buf, &word_len)); + + INSERT_WORD_GOTO(ctx, buf, *item, word, word_len, ret, cleanup); + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, *texts, parent_stmt, LY_ARRAY_COUNT(*texts) - 1, exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), lyplg_ext_stmt2str(parent_stmt)); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, NULL, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse a generic text field that can have more instances such as base. + * + * @param[in] ctx yang parser context for logging. + * @param[in] parent_stmt Type of statement stored in @p qnames. + * @param[in,out] qnames Parsed qnames to add to. + * @param[in] arg Type of the expected argument. + * @param[in,out] exts Extension instances to add to. + * @return LY_ERR values. + */ +static LY_ERR +parse_qnames(struct lysp_yang_ctx *ctx, enum ly_stmt parent_stmt, struct lysp_qname **qnames, enum yang_arg arg, + struct lysp_ext_instance **exts) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + struct lysp_qname *item; + size_t word_len; + enum ly_stmt kw; + + /* allocate new pointer */ + LY_ARRAY_NEW_RET(PARSER_CTX(ctx), *qnames, item, LY_EMEM); + + /* get value */ + LY_CHECK_RET(get_argument(ctx, arg, &item->flags, &word, &buf, &word_len)); + + INSERT_WORD_GOTO(ctx, buf, item->str, word, word_len, ret, cleanup); + item->mod = PARSER_CUR_PMOD(ctx); + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, *qnames, parent_stmt, LY_ARRAY_COUNT(*qnames) - 1, exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), lyplg_ext_stmt2str(parent_stmt)); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, NULL, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the config statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] flags Flags to add to. + * @param[in,out] exts Extension instances to add to. + * @return LY_ERR values. + */ +static LY_ERR +parse_config(struct lysp_yang_ctx *ctx, uint16_t *flags, struct lysp_ext_instance **exts) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + + if (*flags & LYS_CONFIG_MASK) { + LOGVAL_PARSER(ctx, LY_VCODE_DUPSTMT, "config"); + return LY_EVALID; + } + + /* get value */ + LY_CHECK_RET(get_argument(ctx, Y_STR_ARG, NULL, &word, &buf, &word_len)); + + if ((word_len == ly_strlen_const("true")) && !strncmp(word, "true", word_len)) { + *flags |= LYS_CONFIG_W; + } else if ((word_len == ly_strlen_const("false")) && !strncmp(word, "false", word_len)) { + *flags |= LYS_CONFIG_R; + } else { + LOGVAL_PARSER(ctx, LY_VCODE_INVAL, (int)word_len, word, "config"); + free(buf); + return LY_EVALID; + } + free(buf); + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, flags, LY_STMT_CONFIG, 0, exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "config"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, NULL, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the mandatory statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] flags Flags to add to. + * @param[in,out] exts Extension instances to add to. + * @return LY_ERR values. + */ +static LY_ERR +parse_mandatory(struct lysp_yang_ctx *ctx, uint16_t *flags, struct lysp_ext_instance **exts) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + + if (*flags & LYS_MAND_MASK) { + LOGVAL_PARSER(ctx, LY_VCODE_DUPSTMT, "mandatory"); + return LY_EVALID; + } + + /* get value */ + LY_CHECK_RET(get_argument(ctx, Y_STR_ARG, NULL, &word, &buf, &word_len)); + + if ((word_len == ly_strlen_const("true")) && !strncmp(word, "true", word_len)) { + *flags |= LYS_MAND_TRUE; + } else if ((word_len == ly_strlen_const("false")) && !strncmp(word, "false", word_len)) { + *flags |= LYS_MAND_FALSE; + } else { + LOGVAL_PARSER(ctx, LY_VCODE_INVAL, (int)word_len, word, "mandatory"); + free(buf); + return LY_EVALID; + } + free(buf); + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, flags, LY_STMT_MANDATORY, 0, exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "mandatory"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, NULL, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse a restriction such as range or length. + * + * @param[in] ctx yang parser context for logging. + * @param[in] restr_kw Type of this particular restriction. + * @param[in,out] exts Extension instances to add to. + * @return LY_ERR values. + */ +static LY_ERR +parse_restr(struct lysp_yang_ctx *ctx, enum ly_stmt restr_kw, struct lysp_restr *restr) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + + /* get value */ + LY_CHECK_RET(get_argument(ctx, Y_STR_ARG, &restr->arg.flags, &word, &buf, &word_len)); + + CHECK_NONEMPTY(ctx, word_len, lyplg_ext_stmt2str(restr_kw)); + INSERT_WORD_GOTO(ctx, buf, restr->arg.str, word, word_len, ret, cleanup); + restr->arg.mod = PARSER_CUR_PMOD(ctx); + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_DESCRIPTION: + LY_CHECK_RET(parse_text_field(ctx, restr->dsc, LY_STMT_DESCRIPTION, 0, &restr->dsc, Y_STR_ARG, NULL, &restr->exts)); + break; + case LY_STMT_REFERENCE: + LY_CHECK_RET(parse_text_field(ctx, restr->ref, LY_STMT_REFERENCE, 0, &restr->ref, Y_STR_ARG, NULL, &restr->exts)); + break; + case LY_STMT_ERROR_APP_TAG: + LY_CHECK_RET(parse_text_field(ctx, restr, LY_STMT_ERROR_APP_TAG, 0, &restr->eapptag, Y_STR_ARG, NULL, + &restr->exts)); + break; + case LY_STMT_ERROR_MESSAGE: + LY_CHECK_RET(parse_text_field(ctx, restr, LY_STMT_ERROR_MESSAGE, 0, &restr->emsg, Y_STR_ARG, NULL, &restr->exts)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, restr, restr_kw, 0, &restr->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), lyplg_ext_stmt2str(restr_kw)); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, restr->exts, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse a restriction that can have more instances such as must. + * + * @param[in] ctx yang parser context for logging. + * @param[in] restr_kw Type of this particular restriction. + * @param[in,out] restrs Restrictions to add to. + * @return LY_ERR values. + */ +static LY_ERR +parse_restrs(struct lysp_yang_ctx *ctx, enum ly_stmt restr_kw, struct lysp_restr **restrs) +{ + struct lysp_restr *restr; + + LY_ARRAY_NEW_RET(PARSER_CTX(ctx), *restrs, restr, LY_EMEM); + return parse_restr(ctx, restr_kw, restr); +} + +/** + * @brief Parse the status statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] flags Flags to add to. + * @param[in,out] exts Extension instances to add to. + * @return LY_ERR values. + */ +static LY_ERR +parse_status(struct lysp_yang_ctx *ctx, uint16_t *flags, struct lysp_ext_instance **exts) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + + if (*flags & LYS_STATUS_MASK) { + LOGVAL_PARSER(ctx, LY_VCODE_DUPSTMT, "status"); + return LY_EVALID; + } + + /* get value */ + LY_CHECK_RET(get_argument(ctx, Y_STR_ARG, NULL, &word, &buf, &word_len)); + + if ((word_len == ly_strlen_const("current")) && !strncmp(word, "current", word_len)) { + *flags |= LYS_STATUS_CURR; + } else if ((word_len == ly_strlen_const("deprecated")) && !strncmp(word, "deprecated", word_len)) { + *flags |= LYS_STATUS_DEPRC; + } else if ((word_len == ly_strlen_const("obsolete")) && !strncmp(word, "obsolete", word_len)) { + *flags |= LYS_STATUS_OBSLT; + } else { + LOGVAL_PARSER(ctx, LY_VCODE_INVAL, (int)word_len, word, "status"); + free(buf); + return LY_EVALID; + } + free(buf); + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, flags, LY_STMT_STATUS, 0, exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "status"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, NULL, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the when statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] when_p When pointer to parse to. + * @return LY_ERR values. + */ +LY_ERR +parse_when(struct lysp_yang_ctx *ctx, struct lysp_when **when_p) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + struct lysp_when *when; + struct lysf_ctx fctx = {.ctx = PARSER_CTX(ctx)}; + + if (*when_p) { + LOGVAL_PARSER(ctx, LY_VCODE_DUPSTMT, "when"); + return LY_EVALID; + } + + when = calloc(1, sizeof *when); + LY_CHECK_ERR_GOTO(!when, LOGMEM(PARSER_CTX(ctx)); ret = LY_EMEM, cleanup); + + /* get value */ + LY_CHECK_GOTO(ret = get_argument(ctx, Y_STR_ARG, NULL, &word, &buf, &word_len), cleanup); + CHECK_NONEMPTY(ctx, word_len, "when"); + INSERT_WORD_GOTO(ctx, buf, when->cond, word, word_len, ret, cleanup); + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_DESCRIPTION: + ret = parse_text_field(ctx, when->dsc, LY_STMT_DESCRIPTION, 0, &when->dsc, Y_STR_ARG, NULL, &when->exts); + LY_CHECK_GOTO(ret, cleanup); + break; + case LY_STMT_REFERENCE: + ret = parse_text_field(ctx, when->ref, LY_STMT_REFERENCE, 0, &when->ref, Y_STR_ARG, NULL, &when->exts); + LY_CHECK_GOTO(ret, cleanup); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_GOTO(ret = parse_ext(ctx, word, word_len, *when_p, LY_STMT_WHEN, 0, &when->exts), cleanup); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "when"); + ret = LY_EVALID; + goto cleanup; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, when->exts, ret, cleanup); + } + +cleanup: + if (ret) { + lysp_when_free(&fctx, when); + free(when); + } else { + *when_p = when; + } + return ret; +} + +/** + * @brief Parse the anydata or anyxml statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in] any_kw Type of this particular keyword. + * @param[in] parent Node parent. + * @param[in,out] siblings Siblings to add to. + * @return LY_ERR values. + */ +LY_ERR +parse_any(struct lysp_yang_ctx *ctx, enum ly_stmt any_kw, struct lysp_node *parent, struct lysp_node **siblings) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + struct lysp_node_anydata *any; + enum ly_stmt kw; + + /* create new structure and insert into siblings */ + LY_LIST_NEW_RET(PARSER_CTX(ctx), siblings, any, next, LY_EMEM); + + any->nodetype = any_kw == LY_STMT_ANYDATA ? LYS_ANYDATA : LYS_ANYXML; + any->parent = parent; + + /* get name */ + LY_CHECK_RET(get_argument(ctx, Y_IDENTIF_ARG, NULL, &word, &buf, &word_len)); + INSERT_WORD_GOTO(ctx, buf, any->name, word, word_len, ret, cleanup); + + /* parse substatements */ + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_CONFIG: + LY_CHECK_RET(parse_config(ctx, &any->flags, &any->exts)); + break; + case LY_STMT_DESCRIPTION: + LY_CHECK_RET(parse_text_field(ctx, any->dsc, LY_STMT_DESCRIPTION, 0, &any->dsc, Y_STR_ARG, NULL, &any->exts)); + break; + case LY_STMT_IF_FEATURE: + LY_CHECK_RET(parse_qnames(ctx, LY_STMT_IF_FEATURE, &any->iffeatures, Y_STR_ARG, &any->exts)); + break; + case LY_STMT_MANDATORY: + LY_CHECK_RET(parse_mandatory(ctx, &any->flags, &any->exts)); + break; + case LY_STMT_MUST: + LY_CHECK_RET(parse_restrs(ctx, kw, &any->musts)); + break; + case LY_STMT_REFERENCE: + LY_CHECK_RET(parse_text_field(ctx, any->ref, LY_STMT_REFERENCE, 0, &any->ref, Y_STR_ARG, NULL, &any->exts)); + break; + case LY_STMT_STATUS: + LY_CHECK_RET(parse_status(ctx, &any->flags, &any->exts)); + break; + case LY_STMT_WHEN: + LY_CHECK_RET(parse_when(ctx, &any->when)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, any, any_kw, 0, &any->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), lyplg_ext_stmt2str(any_kw)); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, any->exts, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the value or position statement. Substatement of type enum statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in] val_kw Type of this particular keyword. + * @param[in,out] enm Structure to fill. + * @return LY_ERR values. + */ +LY_ERR +parse_type_enum_value_pos(struct lysp_yang_ctx *ctx, enum ly_stmt val_kw, struct lysp_type_enum *enm) +{ + LY_ERR ret = LY_SUCCESS; + char *buf = NULL, *word, *ptr; + size_t word_len; + long long num = 0; + unsigned long long unum = 0; + enum ly_stmt kw; + + if (enm->flags & LYS_SET_VALUE) { + LOGVAL_PARSER(ctx, LY_VCODE_DUPSTMT, lyplg_ext_stmt2str(val_kw)); + ret = LY_EVALID; + goto cleanup; + } + enm->flags |= LYS_SET_VALUE; + + /* get value */ + LY_CHECK_RET(get_argument(ctx, Y_STR_ARG, NULL, &word, &buf, &word_len)); + + if (!word_len || (word[0] == '+') || ((word[0] == '0') && (word_len > 1)) || ((val_kw == LY_STMT_POSITION) && !strncmp(word, "-0", 2))) { + LOGVAL_PARSER(ctx, LY_VCODE_INVAL, (int)word_len, word, lyplg_ext_stmt2str(val_kw)); + ret = LY_EVALID; + goto cleanup; + } + + errno = 0; + if (val_kw == LY_STMT_VALUE) { + num = strtoll(word, &ptr, LY_BASE_DEC); + if ((num < INT64_C(-2147483648)) || (num > INT64_C(2147483647))) { + LOGVAL_PARSER(ctx, LY_VCODE_INVAL, (int)word_len, word, lyplg_ext_stmt2str(val_kw)); + ret = LY_EVALID; + goto cleanup; + } + } else { + unum = strtoull(word, &ptr, LY_BASE_DEC); + if (unum > UINT64_C(4294967295)) { + LOGVAL_PARSER(ctx, LY_VCODE_INVAL, (int)word_len, word, lyplg_ext_stmt2str(val_kw)); + ret = LY_EVALID; + goto cleanup; + } + } + /* we have not parsed the whole argument */ + if ((size_t)(ptr - word) != word_len) { + LOGVAL_PARSER(ctx, LY_VCODE_INVAL, (int)word_len, word, lyplg_ext_stmt2str(val_kw)); + ret = LY_EVALID; + goto cleanup; + } + if (errno == ERANGE) { + LOGVAL_PARSER(ctx, LY_VCODE_OOB, (int)word_len, word, lyplg_ext_stmt2str(val_kw)); + ret = LY_EVALID; + goto cleanup; + } + if (val_kw == LY_STMT_VALUE) { + enm->value = num; + } else { + enm->value = unum; + } + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_EXTENSION_INSTANCE: + ret = parse_ext(ctx, word, word_len, enm, val_kw, 0, &enm->exts); + LY_CHECK_GOTO(ret, cleanup); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), lyplg_ext_stmt2str(val_kw)); + ret = LY_EVALID; + goto cleanup; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, NULL, ret, cleanup); + } + +cleanup: + free(buf); + return ret; +} + +/** + * @brief Parse the enum or bit statement. Substatement of type statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in] enum_kw Type of this particular keyword. + * @param[in,out] enums Enums or bits to add to. + * @return LY_ERR values. + */ +static LY_ERR +parse_type_enum(struct lysp_yang_ctx *ctx, enum ly_stmt enum_kw, struct lysp_type_enum **enums) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + struct lysp_type_enum *enm; + + LY_ARRAY_NEW_RET(PARSER_CTX(ctx), *enums, enm, LY_EMEM); + + /* get value */ + LY_CHECK_RET(get_argument(ctx, enum_kw == LY_STMT_ENUM ? Y_STR_ARG : Y_IDENTIF_ARG, NULL, &word, &buf, &word_len)); + if (enum_kw == LY_STMT_ENUM) { + ret = lysp_check_enum_name((struct lysp_ctx *)ctx, (const char *)word, word_len); + LY_CHECK_ERR_RET(ret, free(buf), ret); + } /* else nothing specific for YANG_BIT */ + + INSERT_WORD_GOTO(ctx, buf, enm->name, word, word_len, ret, cleanup); + CHECK_UNIQUENESS(ctx, *enums, name, lyplg_ext_stmt2str(enum_kw), enm->name); + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_DESCRIPTION: + LY_CHECK_RET(parse_text_field(ctx, enm->dsc, LY_STMT_DESCRIPTION, 0, &enm->dsc, Y_STR_ARG, NULL, &enm->exts)); + break; + case LY_STMT_IF_FEATURE: + PARSER_CHECK_STMTVER2_RET(ctx, "if-feature", lyplg_ext_stmt2str(enum_kw)); + LY_CHECK_RET(parse_qnames(ctx, LY_STMT_IF_FEATURE, &enm->iffeatures, Y_STR_ARG, &enm->exts)); + break; + case LY_STMT_REFERENCE: + LY_CHECK_RET(parse_text_field(ctx, enm->ref, LY_STMT_REFERENCE, 0, &enm->ref, Y_STR_ARG, NULL, &enm->exts)); + break; + case LY_STMT_STATUS: + LY_CHECK_RET(parse_status(ctx, &enm->flags, &enm->exts)); + break; + case LY_STMT_VALUE: + LY_CHECK_ERR_RET(enum_kw == LY_STMT_BIT, LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), + lyplg_ext_stmt2str(enum_kw)), LY_EVALID); + LY_CHECK_RET(parse_type_enum_value_pos(ctx, kw, enm)); + break; + case LY_STMT_POSITION: + LY_CHECK_ERR_RET(enum_kw == LY_STMT_ENUM, LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), + lyplg_ext_stmt2str(enum_kw)), LY_EVALID); + LY_CHECK_RET(parse_type_enum_value_pos(ctx, kw, enm)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, enm, enum_kw, 0, &enm->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), lyplg_ext_stmt2str(enum_kw)); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, enm->exts, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the fraction-digits statement. Substatement of type statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] type Type to fill. + * @return LY_ERR values. + */ +static LY_ERR +parse_type_fracdigits(struct lysp_yang_ctx *ctx, struct lysp_type *type) +{ + LY_ERR ret = LY_SUCCESS; + char *buf = NULL, *word, *ptr; + size_t word_len; + unsigned long long num; + enum ly_stmt kw; + + if (type->fraction_digits) { + LOGVAL_PARSER(ctx, LY_VCODE_DUPSTMT, "fraction-digits"); + return LY_EVALID; + } + + /* get value */ + LY_CHECK_GOTO(ret = get_argument(ctx, Y_STR_ARG, NULL, &word, &buf, &word_len), cleanup); + + if (!word_len || (word[0] == '0') || !isdigit(word[0])) { + LOGVAL_PARSER(ctx, LY_VCODE_INVAL, (int)word_len, word, "fraction-digits"); + ret = LY_EVALID; + goto cleanup; + } + + errno = 0; + num = strtoull(word, &ptr, LY_BASE_DEC); + /* we have not parsed the whole argument */ + if ((size_t)(ptr - word) != word_len) { + LOGVAL_PARSER(ctx, LY_VCODE_INVAL, (int)word_len, word, "fraction-digits"); + ret = LY_EVALID; + goto cleanup; + } + if ((errno == ERANGE) || (num > LY_TYPE_DEC64_FD_MAX)) { + LOGVAL_PARSER(ctx, LY_VCODE_OOB, (int)word_len, word, "fraction-digits"); + ret = LY_EVALID; + goto cleanup; + } + type->fraction_digits = num; + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_GOTO(ret = parse_ext(ctx, word, word_len, type, LY_STMT_FRACTION_DIGITS, 0, &type->exts), cleanup); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "fraction-digits"); + ret = LY_EVALID; + goto cleanup; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, NULL, ret, cleanup); + } + +cleanup: + free(buf); + return ret; +} + +/** + * @brief Parse the require-instance statement. Substatement of type statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] type Type to fill. + * @return LY_ERR values. + */ +static LY_ERR +parse_type_reqinstance(struct lysp_yang_ctx *ctx, struct lysp_type *type) +{ + LY_ERR ret = LY_SUCCESS; + char *buf = NULL, *word; + size_t word_len; + enum ly_stmt kw; + + if (type->flags & LYS_SET_REQINST) { + LOGVAL_PARSER(ctx, LY_VCODE_DUPSTMT, "require-instance"); + return LY_EVALID; + } + type->flags |= LYS_SET_REQINST; + + /* get value */ + LY_CHECK_GOTO(ret = get_argument(ctx, Y_STR_ARG, NULL, &word, &buf, &word_len), cleanup); + + if ((word_len == ly_strlen_const("true")) && !strncmp(word, "true", word_len)) { + type->require_instance = 1; + } else if ((word_len != ly_strlen_const("false")) || strncmp(word, "false", word_len)) { + LOGVAL_PARSER(ctx, LY_VCODE_INVAL, (int)word_len, word, "require-instance"); + ret = LY_EVALID; + goto cleanup; + } + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_GOTO(ret = parse_ext(ctx, word, word_len, type, LY_STMT_REQUIRE_INSTANCE, 0, &type->exts), cleanup); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "require-instance"); + ret = LY_EVALID; + goto cleanup; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, NULL, ret, cleanup); + } + +cleanup: + free(buf); + return ret; +} + +/** + * @brief Parse the modifier statement. Substatement of type pattern statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] restr Restriction to fill. + * @return LY_ERR values. + */ +static LY_ERR +parse_type_pattern_modifier(struct lysp_yang_ctx *ctx, struct lysp_restr *restr) +{ + LY_ERR ret = LY_SUCCESS; + char *buf = NULL, *word; + size_t word_len; + enum ly_stmt kw; + + if (restr->arg.str[0] == LYSP_RESTR_PATTERN_NACK) { + LOGVAL_PARSER(ctx, LY_VCODE_DUPSTMT, "modifier"); + return LY_EVALID; + } + + /* get value */ + LY_CHECK_GOTO(ret = get_argument(ctx, Y_STR_ARG, NULL, &word, &buf, &word_len), cleanup); + + if ((word_len != ly_strlen_const("invert-match")) || strncmp(word, "invert-match", word_len)) { + LOGVAL_PARSER(ctx, LY_VCODE_INVAL, (int)word_len, word, "modifier"); + ret = LY_EVALID; + goto cleanup; + } + + /* replace the value in the dictionary */ + buf = malloc(strlen(restr->arg.str) + 1); + LY_CHECK_ERR_GOTO(!buf, LOGMEM(PARSER_CTX(ctx)); ret = LY_EMEM, cleanup); + strcpy(buf, restr->arg.str); + lydict_remove(PARSER_CTX(ctx), restr->arg.str); + + assert(buf[0] == LYSP_RESTR_PATTERN_ACK); + buf[0] = LYSP_RESTR_PATTERN_NACK; + ret = lydict_insert_zc(PARSER_CTX(ctx), buf, &restr->arg.str); + buf = NULL; + LY_CHECK_GOTO(ret, cleanup); + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_GOTO(ret = parse_ext(ctx, word, word_len, restr, LY_STMT_MODIFIER, 0, &restr->exts), cleanup); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "modifier"); + ret = LY_EVALID; + goto cleanup; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, NULL, ret, cleanup); + } + +cleanup: + free(buf); + return ret; +} + +/** + * @brief Parse the pattern statement. Substatement of type statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] patterns Restrictions to add to. + * @return LY_ERR values. + */ +static LY_ERR +parse_type_pattern(struct lysp_yang_ctx *ctx, struct lysp_restr **patterns) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + struct lysp_restr *restr; + + LY_ARRAY_NEW_RET(PARSER_CTX(ctx), *patterns, restr, LY_EMEM); + + /* get value */ + LY_CHECK_RET(get_argument(ctx, Y_STR_ARG, &restr->arg.flags, &word, &buf, &word_len)); + + /* add special meaning first byte */ + if (buf) { + buf = ly_realloc(buf, word_len + 2); + word = buf; + } else { + buf = malloc(word_len + 2); + } + LY_CHECK_ERR_RET(!buf, LOGMEM(PARSER_CTX(ctx)), LY_EMEM); + if (word_len) { + memmove(buf + 1, word, word_len); + } + buf[0] = LYSP_RESTR_PATTERN_ACK; /* pattern's default regular-match flag */ + buf[word_len + 1] = '\0'; /* terminating NULL byte */ + LY_CHECK_RET(lydict_insert_zc(PARSER_CTX(ctx), buf, &restr->arg.str)); + restr->arg.mod = PARSER_CUR_PMOD(ctx); + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_DESCRIPTION: + LY_CHECK_RET(parse_text_field(ctx, restr->dsc, LY_STMT_DESCRIPTION, 0, &restr->dsc, Y_STR_ARG, NULL, &restr->exts)); + break; + case LY_STMT_REFERENCE: + LY_CHECK_RET(parse_text_field(ctx, restr->ref, LY_STMT_REFERENCE, 0, &restr->ref, Y_STR_ARG, NULL, &restr->exts)); + break; + case LY_STMT_ERROR_APP_TAG: + LY_CHECK_RET(parse_text_field(ctx, restr, LY_STMT_ERROR_APP_TAG, 0, &restr->eapptag, Y_STR_ARG, NULL, &restr->exts)); + break; + case LY_STMT_ERROR_MESSAGE: + LY_CHECK_RET(parse_text_field(ctx, restr, LY_STMT_ERROR_MESSAGE, 0, &restr->emsg, Y_STR_ARG, NULL, &restr->exts)); + break; + case LY_STMT_MODIFIER: + PARSER_CHECK_STMTVER2_RET(ctx, "modifier", "pattern"); + LY_CHECK_RET(parse_type_pattern_modifier(ctx, restr)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, restr, LY_STMT_PATTERN, 0, &restr->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "pattern"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, restr->exts, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the type statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] type Type to wrote to. + * @return LY_ERR values. + */ +static LY_ERR +parse_type(struct lysp_yang_ctx *ctx, struct lysp_type *type) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + const char *str_path = NULL; + size_t word_len; + enum ly_stmt kw; + struct lysp_type *nest_type; + + if (type->name) { + LOGVAL_PARSER(ctx, LY_VCODE_DUPSTMT, "type"); + return LY_EVALID; + } + + /* get value */ + LY_CHECK_RET(get_argument(ctx, Y_PREF_IDENTIF_ARG, NULL, &word, &buf, &word_len)); + INSERT_WORD_GOTO(ctx, buf, type->name, word, word_len, ret, cleanup); + + /* set module */ + type->pmod = PARSER_CUR_PMOD(ctx); + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_BASE: + LY_CHECK_RET(parse_text_fields(ctx, LY_STMT_BASE, &type->bases, Y_PREF_IDENTIF_ARG, &type->exts)); + type->flags |= LYS_SET_BASE; + break; + case LY_STMT_BIT: + LY_CHECK_RET(parse_type_enum(ctx, kw, &type->bits)); + type->flags |= LYS_SET_BIT; + break; + case LY_STMT_ENUM: + LY_CHECK_RET(parse_type_enum(ctx, kw, &type->enums)); + type->flags |= LYS_SET_ENUM; + break; + case LY_STMT_FRACTION_DIGITS: + LY_CHECK_RET(parse_type_fracdigits(ctx, type)); + type->flags |= LYS_SET_FRDIGITS; + break; + case LY_STMT_LENGTH: + if (type->length) { + LOGVAL_PARSER(ctx, LY_VCODE_DUPSTMT, lyplg_ext_stmt2str(kw)); + return LY_EVALID; + } + type->length = calloc(1, sizeof *type->length); + LY_CHECK_ERR_RET(!type->length, LOGMEM(PARSER_CTX(ctx)), LY_EMEM); + + LY_CHECK_RET(parse_restr(ctx, kw, type->length)); + type->flags |= LYS_SET_LENGTH; + break; + case LY_STMT_PATH: + if (type->path) { + LOGVAL_PARSER(ctx, LY_VCODE_DUPSTMT, lyplg_ext_stmt2str(LY_STMT_PATH)); + return LY_EVALID; + } + + /* Usually, in the parser_yang.c, the result of the parsing is stored directly in the + * corresponding structure, so in case of failure, the lysp_module_free function will take + * care of removing the parsed value from the dictionary. But in this case, it is not possible + * to rely on lysp_module_free because the result of the parsing is stored in a local variable. + */ + LY_CHECK_ERR_RET(ret = parse_text_field(ctx, type, LY_STMT_PATH, 0, &str_path, Y_STR_ARG, NULL, &type->exts), + lydict_remove(PARSER_CTX(ctx), str_path), ret); + ret = ly_path_parse(PARSER_CTX(ctx), NULL, str_path, 0, 1, LY_PATH_BEGIN_EITHER, + LY_PATH_PREFIX_OPTIONAL, LY_PATH_PRED_LEAFREF, &type->path); + /* Moreover, even if successful, the string is removed from the dictionary. */ + lydict_remove(PARSER_CTX(ctx), str_path); + LY_CHECK_RET(ret); + type->flags |= LYS_SET_PATH; + break; + case LY_STMT_PATTERN: + LY_CHECK_RET(parse_type_pattern(ctx, &type->patterns)); + type->flags |= LYS_SET_PATTERN; + break; + case LY_STMT_RANGE: + if (type->range) { + LOGVAL_PARSER(ctx, LY_VCODE_DUPSTMT, lyplg_ext_stmt2str(kw)); + return LY_EVALID; + } + type->range = calloc(1, sizeof *type->range); + LY_CHECK_ERR_RET(!type->range, LOGMEM(PARSER_CTX(ctx)), LY_EMEM); + + LY_CHECK_RET(parse_restr(ctx, kw, type->range)); + type->flags |= LYS_SET_RANGE; + break; + case LY_STMT_REQUIRE_INSTANCE: + LY_CHECK_RET(parse_type_reqinstance(ctx, type)); + /* LYS_SET_REQINST checked and set inside parse_type_reqinstance() */ + break; + case LY_STMT_TYPE: + LY_ARRAY_NEW_RET(PARSER_CTX(ctx), type->types, nest_type, LY_EMEM); + LY_CHECK_RET(parse_type(ctx, nest_type)); + type->flags |= LYS_SET_TYPE; + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, type, LY_STMT_TYPE, 0, &type->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "type"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, type->exts, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the leaf statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] siblings Siblings to add to. + * @return LY_ERR values. + */ +LY_ERR +parse_leaf(struct lysp_yang_ctx *ctx, struct lysp_node *parent, struct lysp_node **siblings) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + struct lysp_node_leaf *leaf; + + /* create new leaf structure */ + LY_LIST_NEW_RET(PARSER_CTX(ctx), siblings, leaf, next, LY_EMEM); + leaf->nodetype = LYS_LEAF; + leaf->parent = parent; + + /* get name */ + LY_CHECK_RET(get_argument(ctx, Y_IDENTIF_ARG, NULL, &word, &buf, &word_len)); + INSERT_WORD_GOTO(ctx, buf, leaf->name, word, word_len, ret, cleanup); + + /* parse substatements */ + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_CONFIG: + LY_CHECK_RET(parse_config(ctx, &leaf->flags, &leaf->exts)); + break; + case LY_STMT_DEFAULT: + LY_CHECK_RET(parse_text_field(ctx, &leaf->dflt, LY_STMT_DEFAULT, 0, &leaf->dflt.str, Y_STR_ARG, + &leaf->dflt.flags, &leaf->exts)); + leaf->dflt.mod = PARSER_CUR_PMOD(ctx); + break; + case LY_STMT_DESCRIPTION: + LY_CHECK_RET(parse_text_field(ctx, leaf->dsc, LY_STMT_DESCRIPTION, 0, &leaf->dsc, Y_STR_ARG, NULL, &leaf->exts)); + break; + case LY_STMT_IF_FEATURE: + LY_CHECK_RET(parse_qnames(ctx, LY_STMT_IF_FEATURE, &leaf->iffeatures, Y_STR_ARG, &leaf->exts)); + break; + case LY_STMT_MANDATORY: + LY_CHECK_RET(parse_mandatory(ctx, &leaf->flags, &leaf->exts)); + break; + case LY_STMT_MUST: + LY_CHECK_RET(parse_restrs(ctx, kw, &leaf->musts)); + break; + case LY_STMT_REFERENCE: + LY_CHECK_RET(parse_text_field(ctx, leaf->ref, LY_STMT_REFERENCE, 0, &leaf->ref, Y_STR_ARG, NULL, &leaf->exts)); + break; + case LY_STMT_STATUS: + LY_CHECK_RET(parse_status(ctx, &leaf->flags, &leaf->exts)); + break; + case LY_STMT_TYPE: + LY_CHECK_RET(parse_type(ctx, &leaf->type)); + break; + case LY_STMT_UNITS: + LY_CHECK_RET(parse_text_field(ctx, leaf->units, LY_STMT_UNITS, 0, &leaf->units, Y_STR_ARG, NULL, &leaf->exts)); + break; + case LY_STMT_WHEN: + LY_CHECK_RET(parse_when(ctx, &leaf->when)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, leaf, LY_STMT_LEAF, 0, &leaf->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "leaf"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, leaf->exts, ret, cleanup); + } + + /* mandatory substatements */ + if (!leaf->type.name) { + LOGVAL_PARSER(ctx, LY_VCODE_MISSTMT, "type", "leaf"); + return LY_EVALID; + } + +cleanup: + return ret; +} + +/** + * @brief Parse the max-elements statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] max Value to write to. + * @param[in,out] flags Flags to write to. + * @param[in,out] exts Extension instances to add to. + * @return LY_ERR values. + */ +LY_ERR +parse_maxelements(struct lysp_yang_ctx *ctx, uint32_t *max, uint16_t *flags, struct lysp_ext_instance **exts) +{ + LY_ERR ret = LY_SUCCESS; + char *buf = NULL, *word, *ptr; + size_t word_len; + unsigned long long num; + enum ly_stmt kw; + + if (*flags & LYS_SET_MAX) { + LOGVAL_PARSER(ctx, LY_VCODE_DUPSTMT, "max-elements"); + return LY_EVALID; + } + *flags |= LYS_SET_MAX; + + /* get value */ + LY_CHECK_GOTO(ret = get_argument(ctx, Y_STR_ARG, NULL, &word, &buf, &word_len), cleanup); + + if (!word_len || (word[0] == '0') || ((word[0] != 'u') && !isdigit(word[0]))) { + LOGVAL_PARSER(ctx, LY_VCODE_INVAL, (int)word_len, word, "max-elements"); + ret = LY_EVALID; + goto cleanup; + } + + if (ly_strncmp("unbounded", word, word_len)) { + errno = 0; + num = strtoull(word, &ptr, LY_BASE_DEC); + /* we have not parsed the whole argument */ + if ((size_t)(ptr - word) != word_len) { + LOGVAL_PARSER(ctx, LY_VCODE_INVAL, (int)word_len, word, "max-elements"); + ret = LY_EVALID; + goto cleanup; + } + if ((errno == ERANGE) || (num > UINT32_MAX)) { + LOGVAL_PARSER(ctx, LY_VCODE_OOB, (int)word_len, word, "max-elements"); + ret = LY_EVALID; + goto cleanup; + } + + *max = num; + } else { + /* unbounded */ + *max = 0; + } + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_GOTO(ret = parse_ext(ctx, word, word_len, max, LY_STMT_MAX_ELEMENTS, 0, exts), cleanup); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "max-elements"); + ret = LY_EVALID; + goto cleanup; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, NULL, ret, cleanup); + } + +cleanup: + free(buf); + return ret; +} + +/** + * @brief Parse the min-elements statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] min Value to write to. + * @param[in,out] flags Flags to write to. + * @param[in,out] exts Extension instances to add to. + * @return LY_ERR values. + */ +LY_ERR +parse_minelements(struct lysp_yang_ctx *ctx, uint32_t *min, uint16_t *flags, struct lysp_ext_instance **exts) +{ + LY_ERR ret = LY_SUCCESS; + char *buf = NULL, *word, *ptr; + size_t word_len; + unsigned long long num; + enum ly_stmt kw; + + if (*flags & LYS_SET_MIN) { + LOGVAL_PARSER(ctx, LY_VCODE_DUPSTMT, "min-elements"); + return LY_EVALID; + } + *flags |= LYS_SET_MIN; + + /* get value */ + LY_CHECK_GOTO(ret = get_argument(ctx, Y_STR_ARG, NULL, &word, &buf, &word_len), cleanup); + + if (!word_len || !isdigit(word[0]) || ((word[0] == '0') && (word_len > 1))) { + LOGVAL_PARSER(ctx, LY_VCODE_INVAL, (int)word_len, word, "min-elements"); + ret = LY_EVALID; + goto cleanup; + } + + errno = 0; + num = strtoull(word, &ptr, LY_BASE_DEC); + /* we have not parsed the whole argument */ + if ((size_t)(ptr - word) != word_len) { + LOGVAL_PARSER(ctx, LY_VCODE_INVAL, (int)word_len, word, "min-elements"); + ret = LY_EVALID; + goto cleanup; + } + if ((errno == ERANGE) || (num > UINT32_MAX)) { + LOGVAL_PARSER(ctx, LY_VCODE_OOB, (int)word_len, word, "min-elements"); + ret = LY_EVALID; + goto cleanup; + } + *min = num; + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_GOTO(ret = parse_ext(ctx, word, word_len, min, LY_STMT_MIN_ELEMENTS, 0, exts), cleanup); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "min-elements"); + ret = LY_EVALID; + goto cleanup; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, NULL, ret, cleanup); + } + +cleanup: + free(buf); + return ret; +} + +/** + * @brief Parse the ordered-by statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] llist List or leaf-list to fill. + * @return LY_ERR values. + */ +static LY_ERR +parse_orderedby(struct lysp_yang_ctx *ctx, struct lysp_node *llist) +{ + LY_ERR ret = LY_SUCCESS; + char *buf = NULL, *word; + size_t word_len; + enum ly_stmt kw; + + if (llist->flags & LYS_ORDBY_MASK) { + LOGVAL_PARSER(ctx, LY_VCODE_DUPSTMT, "ordered-by"); + return LY_EVALID; + } + + /* get value */ + LY_CHECK_GOTO(ret = get_argument(ctx, Y_STR_ARG, NULL, &word, &buf, &word_len), cleanup); + + if ((word_len == ly_strlen_const("system")) && !strncmp(word, "system", word_len)) { + llist->flags |= LYS_ORDBY_SYSTEM; + } else if ((word_len == ly_strlen_const("user")) && !strncmp(word, "user", word_len)) { + llist->flags |= LYS_ORDBY_USER; + } else { + LOGVAL_PARSER(ctx, LY_VCODE_INVAL, (int)word_len, word, "ordered-by"); + ret = LY_EVALID; + goto cleanup; + } + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_GOTO(ret = parse_ext(ctx, word, word_len, llist, LY_STMT_ORDERED_BY, 0, &llist->exts), cleanup); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "ordered-by"); + ret = LY_EVALID; + goto cleanup; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, NULL, ret, cleanup); + } + +cleanup: + free(buf); + return ret; +} + +/** + * @brief Parse the leaf-list statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] siblings Siblings to add to. + * + * @return LY_ERR values. + */ +LY_ERR +parse_leaflist(struct lysp_yang_ctx *ctx, struct lysp_node *parent, struct lysp_node **siblings) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + struct lysp_node_leaflist *llist; + + /* create new leaf-list structure */ + LY_LIST_NEW_RET(PARSER_CTX(ctx), siblings, llist, next, LY_EMEM); + llist->nodetype = LYS_LEAFLIST; + llist->parent = parent; + + /* get name */ + LY_CHECK_RET(get_argument(ctx, Y_IDENTIF_ARG, NULL, &word, &buf, &word_len)); + INSERT_WORD_GOTO(ctx, buf, llist->name, word, word_len, ret, cleanup); + + /* parse substatements */ + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_CONFIG: + LY_CHECK_RET(parse_config(ctx, &llist->flags, &llist->exts)); + break; + case LY_STMT_DEFAULT: + PARSER_CHECK_STMTVER2_RET(ctx, "default", "leaf-list"); + LY_CHECK_RET(parse_qnames(ctx, LY_STMT_DEFAULT, &llist->dflts, Y_STR_ARG, &llist->exts)); + break; + case LY_STMT_DESCRIPTION: + LY_CHECK_RET(parse_text_field(ctx, llist->dsc, LY_STMT_DESCRIPTION, 0, &llist->dsc, Y_STR_ARG, NULL, &llist->exts)); + break; + case LY_STMT_IF_FEATURE: + LY_CHECK_RET(parse_qnames(ctx, LY_STMT_IF_FEATURE, &llist->iffeatures, Y_STR_ARG, &llist->exts)); + break; + case LY_STMT_MAX_ELEMENTS: + LY_CHECK_RET(parse_maxelements(ctx, &llist->max, &llist->flags, &llist->exts)); + break; + case LY_STMT_MIN_ELEMENTS: + LY_CHECK_RET(parse_minelements(ctx, &llist->min, &llist->flags, &llist->exts)); + break; + case LY_STMT_MUST: + LY_CHECK_RET(parse_restrs(ctx, kw, &llist->musts)); + break; + case LY_STMT_ORDERED_BY: + LY_CHECK_RET(parse_orderedby(ctx, &llist->node)); + break; + case LY_STMT_REFERENCE: + LY_CHECK_RET(parse_text_field(ctx, llist->ref, LY_STMT_REFERENCE, 0, &llist->ref, Y_STR_ARG, NULL, &llist->exts)); + break; + case LY_STMT_STATUS: + LY_CHECK_RET(parse_status(ctx, &llist->flags, &llist->exts)); + break; + case LY_STMT_TYPE: + LY_CHECK_RET(parse_type(ctx, &llist->type)); + break; + case LY_STMT_UNITS: + LY_CHECK_RET(parse_text_field(ctx, llist->units, LY_STMT_UNITS, 0, &llist->units, Y_STR_ARG, NULL, &llist->exts)); + break; + case LY_STMT_WHEN: + LY_CHECK_RET(parse_when(ctx, &llist->when)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, llist, LY_STMT_LEAF_LIST, 0, &llist->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "llist"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, llist->exts, ret, cleanup); + } + + /* mandatory substatements */ + if (!llist->type.name) { + LOGVAL_PARSER(ctx, LY_VCODE_MISSTMT, "type", "leaf-list"); + return LY_EVALID; + } + +cleanup: + return ret; +} + +/** + * @brief Parse the refine statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] refines Refines to add to. + * @return LY_ERR values. + */ +static LY_ERR +parse_refine(struct lysp_yang_ctx *ctx, struct lysp_refine **refines) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + struct lysp_refine *rf; + + LY_ARRAY_NEW_RET(PARSER_CTX(ctx), *refines, rf, LY_EMEM); + + /* get value */ + LY_CHECK_RET(get_argument(ctx, Y_STR_ARG, NULL, &word, &buf, &word_len)); + CHECK_NONEMPTY(ctx, word_len, "refine"); + INSERT_WORD_GOTO(ctx, buf, rf->nodeid, word, word_len, ret, cleanup); + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_CONFIG: + LY_CHECK_RET(parse_config(ctx, &rf->flags, &rf->exts)); + break; + case LY_STMT_DEFAULT: + LY_CHECK_RET(parse_qnames(ctx, LY_STMT_DEFAULT, &rf->dflts, Y_STR_ARG, &rf->exts)); + break; + case LY_STMT_DESCRIPTION: + LY_CHECK_RET(parse_text_field(ctx, rf->dsc, LY_STMT_DESCRIPTION, 0, &rf->dsc, Y_STR_ARG, NULL, &rf->exts)); + break; + case LY_STMT_IF_FEATURE: + PARSER_CHECK_STMTVER2_RET(ctx, "if-feature", "refine"); + LY_CHECK_RET(parse_qnames(ctx, LY_STMT_IF_FEATURE, &rf->iffeatures, Y_STR_ARG, &rf->exts)); + break; + case LY_STMT_MAX_ELEMENTS: + LY_CHECK_RET(parse_maxelements(ctx, &rf->max, &rf->flags, &rf->exts)); + break; + case LY_STMT_MIN_ELEMENTS: + LY_CHECK_RET(parse_minelements(ctx, &rf->min, &rf->flags, &rf->exts)); + break; + case LY_STMT_MUST: + LY_CHECK_RET(parse_restrs(ctx, kw, &rf->musts)); + break; + case LY_STMT_MANDATORY: + LY_CHECK_RET(parse_mandatory(ctx, &rf->flags, &rf->exts)); + break; + case LY_STMT_REFERENCE: + LY_CHECK_RET(parse_text_field(ctx, rf->ref, LY_STMT_REFERENCE, 0, &rf->ref, Y_STR_ARG, NULL, &rf->exts)); + break; + case LY_STMT_PRESENCE: + LY_CHECK_RET(parse_text_field(ctx, rf->presence, LY_STMT_PRESENCE, 0, &rf->presence, Y_STR_ARG, NULL, &rf->exts)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, rf, LY_STMT_REFINE, 0, &rf->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "refine"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, rf->exts, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the typedef statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] typedefs Typedefs to add to. + * @return LY_ERR values. + */ +static LY_ERR +parse_typedef(struct lysp_yang_ctx *ctx, struct lysp_node *parent, struct lysp_tpdf **typedefs) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + struct lysp_tpdf *tpdf; + + LY_ARRAY_NEW_RET(PARSER_CTX(ctx), *typedefs, tpdf, LY_EMEM); + + /* get value */ + LY_CHECK_RET(get_argument(ctx, Y_IDENTIF_ARG, NULL, &word, &buf, &word_len)); + INSERT_WORD_GOTO(ctx, buf, tpdf->name, word, word_len, ret, cleanup); + + /* parse substatements */ + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_DEFAULT: + LY_CHECK_RET(parse_text_field(ctx, &tpdf->dflt, LY_STMT_DEFAULT, 0, &tpdf->dflt.str, Y_STR_ARG, + &tpdf->dflt.flags, &tpdf->exts)); + tpdf->dflt.mod = PARSER_CUR_PMOD(ctx); + break; + case LY_STMT_DESCRIPTION: + LY_CHECK_RET(parse_text_field(ctx, tpdf->dsc, LY_STMT_DESCRIPTION, 0, &tpdf->dsc, Y_STR_ARG, NULL, &tpdf->exts)); + break; + case LY_STMT_REFERENCE: + LY_CHECK_RET(parse_text_field(ctx, tpdf->ref, LY_STMT_REFERENCE, 0, &tpdf->ref, Y_STR_ARG, NULL, &tpdf->exts)); + break; + case LY_STMT_STATUS: + LY_CHECK_RET(parse_status(ctx, &tpdf->flags, &tpdf->exts)); + break; + case LY_STMT_TYPE: + LY_CHECK_RET(parse_type(ctx, &tpdf->type)); + break; + case LY_STMT_UNITS: + LY_CHECK_RET(parse_text_field(ctx, tpdf->units, LY_STMT_UNITS, 0, &tpdf->units, Y_STR_ARG, NULL, &tpdf->exts)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, tpdf, LY_STMT_TYPEDEF, 0, &tpdf->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "typedef"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, tpdf->exts, ret, cleanup); + } + + /* mandatory substatements */ + if (!tpdf->type.name) { + LOGVAL_PARSER(ctx, LY_VCODE_MISSTMT, "type", "typedef"); + return LY_EVALID; + } + + /* store data for collision check */ + if (parent) { + assert(ctx->main_ctx); + LY_CHECK_RET(ly_set_add(&ctx->main_ctx->tpdfs_nodes, parent, 0, NULL)); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the input or output statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in] kw Type of this particular keyword + * @param[in,out] inout_p Input/output pointer to write to. + * @return LY_ERR values. + */ +static LY_ERR +parse_inout(struct lysp_yang_ctx *ctx, enum ly_stmt inout_kw, struct lysp_node *parent, + struct lysp_node_action_inout *inout_p) +{ + LY_ERR ret = LY_SUCCESS; + char *word; + size_t word_len; + enum ly_stmt kw; + ly_bool input = &((struct lysp_node_action *)parent)->input == inout_p ? 1 : 0; + + if (inout_p->nodetype) { + LOGVAL_PARSER(ctx, LY_VCODE_DUPSTMT, lyplg_ext_stmt2str(inout_kw)); + return LY_EVALID; + } + + /* initiate structure */ + LY_CHECK_RET(lydict_insert(PARSER_CTX(ctx), input ? "input" : "output", 0, &inout_p->name)); + inout_p->nodetype = input ? LYS_INPUT : LYS_OUTPUT; + inout_p->parent = parent; + + /* parse substatements */ + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_ANYDATA: + PARSER_CHECK_STMTVER2_RET(ctx, "anydata", lyplg_ext_stmt2str(inout_kw)); + /* fall through */ + case LY_STMT_ANYXML: + LY_CHECK_RET(parse_any(ctx, kw, (struct lysp_node *)inout_p, &inout_p->child)); + break; + case LY_STMT_CHOICE: + LY_CHECK_RET(parse_choice(ctx, (struct lysp_node *)inout_p, &inout_p->child)); + break; + case LY_STMT_CONTAINER: + LY_CHECK_RET(parse_container(ctx, (struct lysp_node *)inout_p, &inout_p->child)); + break; + case LY_STMT_LEAF: + LY_CHECK_RET(parse_leaf(ctx, (struct lysp_node *)inout_p, &inout_p->child)); + break; + case LY_STMT_LEAF_LIST: + LY_CHECK_RET(parse_leaflist(ctx, (struct lysp_node *)inout_p, &inout_p->child)); + break; + case LY_STMT_LIST: + LY_CHECK_RET(parse_list(ctx, (struct lysp_node *)inout_p, &inout_p->child)); + break; + case LY_STMT_USES: + LY_CHECK_RET(parse_uses(ctx, (struct lysp_node *)inout_p, &inout_p->child)); + break; + case LY_STMT_TYPEDEF: + LY_CHECK_RET(parse_typedef(ctx, (struct lysp_node *)inout_p, &inout_p->typedefs)); + break; + case LY_STMT_MUST: + PARSER_CHECK_STMTVER2_RET(ctx, "must", lyplg_ext_stmt2str(inout_kw)); + LY_CHECK_RET(parse_restrs(ctx, kw, &inout_p->musts)); + break; + case LY_STMT_GROUPING: + LY_CHECK_RET(parse_grouping(ctx, (struct lysp_node *)inout_p, &inout_p->groupings)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, inout_p, inout_kw, 0, &inout_p->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), lyplg_ext_stmt2str(inout_kw)); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, inout_p->exts, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the action statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] actions Actions to add to. + * @return LY_ERR values. + */ +LY_ERR +parse_action(struct lysp_yang_ctx *ctx, struct lysp_node *parent, struct lysp_node_action **actions) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + struct lysp_node_action *act; + + LY_LIST_NEW_RET(PARSER_CTX(ctx), actions, act, next, LY_EMEM); + + /* get value */ + LY_CHECK_RET(get_argument(ctx, Y_IDENTIF_ARG, NULL, &word, &buf, &word_len)); + INSERT_WORD_GOTO(ctx, buf, act->name, word, word_len, ret, cleanup); + act->nodetype = parent ? LYS_ACTION : LYS_RPC; + act->parent = parent; + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_DESCRIPTION: + LY_CHECK_RET(parse_text_field(ctx, act->dsc, LY_STMT_DESCRIPTION, 0, &act->dsc, Y_STR_ARG, NULL, &act->exts)); + break; + case LY_STMT_IF_FEATURE: + LY_CHECK_RET(parse_qnames(ctx, LY_STMT_IF_FEATURE, &act->iffeatures, Y_STR_ARG, &act->exts)); + break; + case LY_STMT_REFERENCE: + LY_CHECK_RET(parse_text_field(ctx, act->ref, LY_STMT_REFERENCE, 0, &act->ref, Y_STR_ARG, NULL, &act->exts)); + break; + case LY_STMT_STATUS: + LY_CHECK_RET(parse_status(ctx, &act->flags, &act->exts)); + break; + + case LY_STMT_INPUT: + LY_CHECK_RET(parse_inout(ctx, kw, (struct lysp_node *)act, &act->input)); + break; + case LY_STMT_OUTPUT: + LY_CHECK_RET(parse_inout(ctx, kw, (struct lysp_node *)act, &act->output)); + break; + + case LY_STMT_TYPEDEF: + LY_CHECK_RET(parse_typedef(ctx, (struct lysp_node *)act, &act->typedefs)); + break; + case LY_STMT_GROUPING: + LY_CHECK_RET(parse_grouping(ctx, (struct lysp_node *)act, &act->groupings)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, act, parent ? LY_STMT_ACTION : LY_STMT_RPC, 0, &act->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), parent ? "action" : "rpc"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, act->exts, ret, cleanup); + } + + /* always initialize inout, they are technically present (needed for later deviations/refines) */ + if (!act->input.nodetype) { + act->input.nodetype = LYS_INPUT; + act->input.parent = (struct lysp_node *)act; + LY_CHECK_RET(lydict_insert(PARSER_CTX(ctx), "input", 0, &act->input.name)); + } + if (!act->output.nodetype) { + act->output.nodetype = LYS_OUTPUT; + act->output.parent = (struct lysp_node *)act; + LY_CHECK_RET(lydict_insert(PARSER_CTX(ctx), "output", 0, &act->output.name)); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the notification statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] notifs Notifications to add to. + * @return LY_ERR values. + */ +LY_ERR +parse_notif(struct lysp_yang_ctx *ctx, struct lysp_node *parent, struct lysp_node_notif **notifs) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + struct lysp_node_notif *notif; + + LY_LIST_NEW_RET(PARSER_CTX(ctx), notifs, notif, next, LY_EMEM); + + /* get value */ + LY_CHECK_RET(get_argument(ctx, Y_IDENTIF_ARG, NULL, &word, &buf, &word_len)); + INSERT_WORD_GOTO(ctx, buf, notif->name, word, word_len, ret, cleanup); + notif->nodetype = LYS_NOTIF; + notif->parent = parent; + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_DESCRIPTION: + LY_CHECK_RET(parse_text_field(ctx, notif->dsc, LY_STMT_DESCRIPTION, 0, ¬if->dsc, Y_STR_ARG, NULL, + ¬if->exts)); + break; + case LY_STMT_IF_FEATURE: + LY_CHECK_RET(parse_qnames(ctx, LY_STMT_IF_FEATURE, ¬if->iffeatures, Y_STR_ARG, ¬if->exts)); + break; + case LY_STMT_REFERENCE: + LY_CHECK_RET(parse_text_field(ctx, notif->ref, LY_STMT_REFERENCE, 0, ¬if->ref, Y_STR_ARG, NULL, + ¬if->exts)); + break; + case LY_STMT_STATUS: + LY_CHECK_RET(parse_status(ctx, ¬if->flags, ¬if->exts)); + break; + + case LY_STMT_ANYDATA: + PARSER_CHECK_STMTVER2_RET(ctx, "anydata", "notification"); + /* fall through */ + case LY_STMT_ANYXML: + LY_CHECK_RET(parse_any(ctx, kw, (struct lysp_node *)notif, ¬if->child)); + break; + case LY_STMT_CHOICE: + LY_CHECK_RET(parse_choice(ctx, (struct lysp_node *)notif, ¬if->child)); + break; + case LY_STMT_CONTAINER: + LY_CHECK_RET(parse_container(ctx, (struct lysp_node *)notif, ¬if->child)); + break; + case LY_STMT_LEAF: + LY_CHECK_RET(parse_leaf(ctx, (struct lysp_node *)notif, ¬if->child)); + break; + case LY_STMT_LEAF_LIST: + LY_CHECK_RET(parse_leaflist(ctx, (struct lysp_node *)notif, ¬if->child)); + break; + case LY_STMT_LIST: + LY_CHECK_RET(parse_list(ctx, (struct lysp_node *)notif, ¬if->child)); + break; + case LY_STMT_USES: + LY_CHECK_RET(parse_uses(ctx, (struct lysp_node *)notif, ¬if->child)); + break; + + case LY_STMT_MUST: + PARSER_CHECK_STMTVER2_RET(ctx, "must", "notification"); + LY_CHECK_RET(parse_restrs(ctx, kw, ¬if->musts)); + break; + case LY_STMT_TYPEDEF: + LY_CHECK_RET(parse_typedef(ctx, (struct lysp_node *)notif, ¬if->typedefs)); + break; + case LY_STMT_GROUPING: + LY_CHECK_RET(parse_grouping(ctx, (struct lysp_node *)notif, ¬if->groupings)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, notif, LY_STMT_NOTIFICATION, 0, ¬if->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "notification"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, notif->exts, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the grouping statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] groupings Groupings to add to. + * @return LY_ERR values. + */ +LY_ERR +parse_grouping(struct lysp_yang_ctx *ctx, struct lysp_node *parent, struct lysp_node_grp **groupings) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + struct lysp_node_grp *grp; + + LY_LIST_NEW_RET(PARSER_CTX(ctx), groupings, grp, next, LY_EMEM); + + /* get value */ + LY_CHECK_RET(get_argument(ctx, Y_IDENTIF_ARG, NULL, &word, &buf, &word_len)); + INSERT_WORD_GOTO(ctx, buf, grp->name, word, word_len, ret, cleanup); + grp->nodetype = LYS_GROUPING; + grp->parent = parent; + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_DESCRIPTION: + LY_CHECK_RET(parse_text_field(ctx, grp->dsc, LY_STMT_DESCRIPTION, 0, &grp->dsc, Y_STR_ARG, NULL, &grp->exts)); + break; + case LY_STMT_REFERENCE: + LY_CHECK_RET(parse_text_field(ctx, grp->ref, LY_STMT_REFERENCE, 0, &grp->ref, Y_STR_ARG, NULL, &grp->exts)); + break; + case LY_STMT_STATUS: + LY_CHECK_RET(parse_status(ctx, &grp->flags, &grp->exts)); + break; + + case LY_STMT_ANYDATA: + PARSER_CHECK_STMTVER2_RET(ctx, "anydata", "grouping"); + /* fall through */ + case LY_STMT_ANYXML: + LY_CHECK_RET(parse_any(ctx, kw, &grp->node, &grp->child)); + break; + case LY_STMT_CHOICE: + LY_CHECK_RET(parse_choice(ctx, &grp->node, &grp->child)); + break; + case LY_STMT_CONTAINER: + LY_CHECK_RET(parse_container(ctx, &grp->node, &grp->child)); + break; + case LY_STMT_LEAF: + LY_CHECK_RET(parse_leaf(ctx, &grp->node, &grp->child)); + break; + case LY_STMT_LEAF_LIST: + LY_CHECK_RET(parse_leaflist(ctx, &grp->node, &grp->child)); + break; + case LY_STMT_LIST: + LY_CHECK_RET(parse_list(ctx, &grp->node, &grp->child)); + break; + case LY_STMT_USES: + LY_CHECK_RET(parse_uses(ctx, &grp->node, &grp->child)); + break; + + case LY_STMT_TYPEDEF: + LY_CHECK_RET(parse_typedef(ctx, &grp->node, &grp->typedefs)); + break; + case LY_STMT_ACTION: + PARSER_CHECK_STMTVER2_RET(ctx, "action", "grouping"); + LY_CHECK_RET(parse_action(ctx, &grp->node, &grp->actions)); + break; + case LY_STMT_GROUPING: + LY_CHECK_RET(parse_grouping(ctx, &grp->node, &grp->groupings)); + break; + case LY_STMT_NOTIFICATION: + PARSER_CHECK_STMTVER2_RET(ctx, "notification", "grouping"); + LY_CHECK_RET(parse_notif(ctx, &grp->node, &grp->notifs)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, grp, LY_STMT_GROUPING, 0, &grp->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "grouping"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, grp->exts, ret, cleanup); + } + + /* store data for collision check */ + if (parent) { + assert(ctx->main_ctx); + LY_CHECK_RET(ly_set_add(&ctx->main_ctx->grps_nodes, parent, 0, NULL)); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the augment statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] augments Augments to add to. + * @return LY_ERR values. + */ +LY_ERR +parse_augment(struct lysp_yang_ctx *ctx, struct lysp_node *parent, struct lysp_node_augment **augments) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + struct lysp_node_augment *aug; + + LY_LIST_NEW_RET(PARSER_CTX(ctx), augments, aug, next, LY_EMEM); + + /* get value */ + LY_CHECK_RET(get_argument(ctx, Y_STR_ARG, NULL, &word, &buf, &word_len)); + CHECK_NONEMPTY(ctx, word_len, "augment"); + INSERT_WORD_GOTO(ctx, buf, aug->nodeid, word, word_len, ret, cleanup); + aug->nodetype = LYS_AUGMENT; + aug->parent = parent; + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_DESCRIPTION: + LY_CHECK_RET(parse_text_field(ctx, aug->dsc, LY_STMT_DESCRIPTION, 0, &aug->dsc, Y_STR_ARG, NULL, &aug->exts)); + break; + case LY_STMT_IF_FEATURE: + LY_CHECK_RET(parse_qnames(ctx, LY_STMT_IF_FEATURE, &aug->iffeatures, Y_STR_ARG, &aug->exts)); + break; + case LY_STMT_REFERENCE: + LY_CHECK_RET(parse_text_field(ctx, aug->ref, LY_STMT_REFERENCE, 0, &aug->ref, Y_STR_ARG, NULL, &aug->exts)); + break; + case LY_STMT_STATUS: + LY_CHECK_RET(parse_status(ctx, &aug->flags, &aug->exts)); + break; + case LY_STMT_WHEN: + LY_CHECK_RET(parse_when(ctx, &aug->when)); + break; + + case LY_STMT_ANYDATA: + PARSER_CHECK_STMTVER2_RET(ctx, "anydata", "augment"); + /* fall through */ + case LY_STMT_ANYXML: + LY_CHECK_RET(parse_any(ctx, kw, (struct lysp_node *)aug, &aug->child)); + break; + case LY_STMT_CASE: + LY_CHECK_RET(parse_case(ctx, (struct lysp_node *)aug, &aug->child)); + break; + case LY_STMT_CHOICE: + LY_CHECK_RET(parse_choice(ctx, (struct lysp_node *)aug, &aug->child)); + break; + case LY_STMT_CONTAINER: + LY_CHECK_RET(parse_container(ctx, (struct lysp_node *)aug, &aug->child)); + break; + case LY_STMT_LEAF: + LY_CHECK_RET(parse_leaf(ctx, (struct lysp_node *)aug, &aug->child)); + break; + case LY_STMT_LEAF_LIST: + LY_CHECK_RET(parse_leaflist(ctx, (struct lysp_node *)aug, &aug->child)); + break; + case LY_STMT_LIST: + LY_CHECK_RET(parse_list(ctx, (struct lysp_node *)aug, &aug->child)); + break; + case LY_STMT_USES: + LY_CHECK_RET(parse_uses(ctx, (struct lysp_node *)aug, &aug->child)); + break; + + case LY_STMT_ACTION: + PARSER_CHECK_STMTVER2_RET(ctx, "action", "augment"); + LY_CHECK_RET(parse_action(ctx, (struct lysp_node *)aug, &aug->actions)); + break; + case LY_STMT_NOTIFICATION: + PARSER_CHECK_STMTVER2_RET(ctx, "notification", "augment"); + LY_CHECK_RET(parse_notif(ctx, (struct lysp_node *)aug, &aug->notifs)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, aug, LY_STMT_AUGMENT, 0, &aug->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "augment"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, aug->exts, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the uses statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] siblings Siblings to add to. + * @return LY_ERR values. + */ +LY_ERR +parse_uses(struct lysp_yang_ctx *ctx, struct lysp_node *parent, struct lysp_node **siblings) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + struct lysp_node_uses *uses; + + /* create uses structure */ + LY_LIST_NEW_RET(PARSER_CTX(ctx), siblings, uses, next, LY_EMEM); + uses->nodetype = LYS_USES; + uses->parent = parent; + + /* get name */ + LY_CHECK_RET(get_argument(ctx, Y_PREF_IDENTIF_ARG, NULL, &word, &buf, &word_len)); + INSERT_WORD_GOTO(ctx, buf, uses->name, word, word_len, ret, cleanup); + + /* parse substatements */ + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_DESCRIPTION: + LY_CHECK_RET(parse_text_field(ctx, uses->dsc, LY_STMT_DESCRIPTION, 0, &uses->dsc, Y_STR_ARG, NULL, &uses->exts)); + break; + case LY_STMT_IF_FEATURE: + LY_CHECK_RET(parse_qnames(ctx, LY_STMT_IF_FEATURE, &uses->iffeatures, Y_STR_ARG, &uses->exts)); + break; + case LY_STMT_REFERENCE: + LY_CHECK_RET(parse_text_field(ctx, uses->ref, LY_STMT_REFERENCE, 0, &uses->ref, Y_STR_ARG, NULL, &uses->exts)); + break; + case LY_STMT_STATUS: + LY_CHECK_RET(parse_status(ctx, &uses->flags, &uses->exts)); + break; + case LY_STMT_WHEN: + LY_CHECK_RET(parse_when(ctx, &uses->when)); + break; + + case LY_STMT_REFINE: + LY_CHECK_RET(parse_refine(ctx, &uses->refines)); + break; + case LY_STMT_AUGMENT: + LY_CHECK_RET(parse_augment(ctx, (struct lysp_node *)uses, &uses->augments)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, uses, LY_STMT_USES, 0, &uses->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "uses"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, uses->exts, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the case statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] siblings Siblings to add to. + * @return LY_ERR values. + */ +LY_ERR +parse_case(struct lysp_yang_ctx *ctx, struct lysp_node *parent, struct lysp_node **siblings) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + struct lysp_node_case *cas; + + /* create new case structure */ + LY_LIST_NEW_RET(PARSER_CTX(ctx), siblings, cas, next, LY_EMEM); + cas->nodetype = LYS_CASE; + cas->parent = parent; + + /* get name */ + LY_CHECK_RET(get_argument(ctx, Y_IDENTIF_ARG, NULL, &word, &buf, &word_len)); + INSERT_WORD_GOTO(ctx, buf, cas->name, word, word_len, ret, cleanup); + + /* parse substatements */ + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_DESCRIPTION: + LY_CHECK_RET(parse_text_field(ctx, cas->dsc, LY_STMT_DESCRIPTION, 0, &cas->dsc, Y_STR_ARG, NULL, &cas->exts)); + break; + case LY_STMT_IF_FEATURE: + LY_CHECK_RET(parse_qnames(ctx, LY_STMT_IF_FEATURE, &cas->iffeatures, Y_STR_ARG, &cas->exts)); + break; + case LY_STMT_REFERENCE: + LY_CHECK_RET(parse_text_field(ctx, cas->ref, LY_STMT_REFERENCE, 0, &cas->ref, Y_STR_ARG, NULL, &cas->exts)); + break; + case LY_STMT_STATUS: + LY_CHECK_RET(parse_status(ctx, &cas->flags, &cas->exts)); + break; + case LY_STMT_WHEN: + LY_CHECK_RET(parse_when(ctx, &cas->when)); + break; + + case LY_STMT_ANYDATA: + PARSER_CHECK_STMTVER2_RET(ctx, "anydata", "case"); + /* fall through */ + case LY_STMT_ANYXML: + LY_CHECK_RET(parse_any(ctx, kw, (struct lysp_node *)cas, &cas->child)); + break; + case LY_STMT_CHOICE: + LY_CHECK_RET(parse_choice(ctx, (struct lysp_node *)cas, &cas->child)); + break; + case LY_STMT_CONTAINER: + LY_CHECK_RET(parse_container(ctx, (struct lysp_node *)cas, &cas->child)); + break; + case LY_STMT_LEAF: + LY_CHECK_RET(parse_leaf(ctx, (struct lysp_node *)cas, &cas->child)); + break; + case LY_STMT_LEAF_LIST: + LY_CHECK_RET(parse_leaflist(ctx, (struct lysp_node *)cas, &cas->child)); + break; + case LY_STMT_LIST: + LY_CHECK_RET(parse_list(ctx, (struct lysp_node *)cas, &cas->child)); + break; + case LY_STMT_USES: + LY_CHECK_RET(parse_uses(ctx, (struct lysp_node *)cas, &cas->child)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, cas, LY_STMT_CASE, 0, &cas->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "case"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, cas->exts, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the choice statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] siblings Siblings to add to. + * @return LY_ERR values. + */ +LY_ERR +parse_choice(struct lysp_yang_ctx *ctx, struct lysp_node *parent, struct lysp_node **siblings) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + struct lysp_node_choice *choice; + + /* create new choice structure */ + LY_LIST_NEW_RET(PARSER_CTX(ctx), siblings, choice, next, LY_EMEM); + choice->nodetype = LYS_CHOICE; + choice->parent = parent; + + /* get name */ + LY_CHECK_RET(get_argument(ctx, Y_IDENTIF_ARG, NULL, &word, &buf, &word_len)); + INSERT_WORD_GOTO(ctx, buf, choice->name, word, word_len, ret, cleanup); + + /* parse substatements */ + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_CONFIG: + LY_CHECK_RET(parse_config(ctx, &choice->flags, &choice->exts)); + break; + case LY_STMT_DESCRIPTION: + LY_CHECK_RET(parse_text_field(ctx, choice->dsc, LY_STMT_DESCRIPTION, 0, &choice->dsc, Y_STR_ARG, NULL, + &choice->exts)); + break; + case LY_STMT_IF_FEATURE: + LY_CHECK_RET(parse_qnames(ctx, LY_STMT_IF_FEATURE, &choice->iffeatures, Y_STR_ARG, &choice->exts)); + break; + case LY_STMT_MANDATORY: + LY_CHECK_RET(parse_mandatory(ctx, &choice->flags, &choice->exts)); + break; + case LY_STMT_REFERENCE: + LY_CHECK_RET(parse_text_field(ctx, choice->ref, LY_STMT_REFERENCE, 0, &choice->ref, Y_STR_ARG, NULL, + &choice->exts)); + break; + case LY_STMT_STATUS: + LY_CHECK_RET(parse_status(ctx, &choice->flags, &choice->exts)); + break; + case LY_STMT_WHEN: + LY_CHECK_RET(parse_when(ctx, &choice->when)); + break; + case LY_STMT_DEFAULT: + LY_CHECK_RET(parse_text_field(ctx, &choice->dflt, LY_STMT_DEFAULT, 0, &choice->dflt.str, Y_PREF_IDENTIF_ARG, + &choice->dflt.flags, &choice->exts)); + choice->dflt.mod = PARSER_CUR_PMOD(ctx); + break; + + case LY_STMT_ANYDATA: + PARSER_CHECK_STMTVER2_RET(ctx, "anydata", "choice"); + /* fall through */ + case LY_STMT_ANYXML: + LY_CHECK_RET(parse_any(ctx, kw, (struct lysp_node *)choice, &choice->child)); + break; + case LY_STMT_CASE: + LY_CHECK_RET(parse_case(ctx, (struct lysp_node *)choice, &choice->child)); + break; + case LY_STMT_CHOICE: + PARSER_CHECK_STMTVER2_RET(ctx, "choice", "choice"); + LY_CHECK_RET(parse_choice(ctx, (struct lysp_node *)choice, &choice->child)); + break; + case LY_STMT_CONTAINER: + LY_CHECK_RET(parse_container(ctx, (struct lysp_node *)choice, &choice->child)); + break; + case LY_STMT_LEAF: + LY_CHECK_RET(parse_leaf(ctx, (struct lysp_node *)choice, &choice->child)); + break; + case LY_STMT_LEAF_LIST: + LY_CHECK_RET(parse_leaflist(ctx, (struct lysp_node *)choice, &choice->child)); + break; + case LY_STMT_LIST: + LY_CHECK_RET(parse_list(ctx, (struct lysp_node *)choice, &choice->child)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, choice, LY_STMT_CHOICE, 0, &choice->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "choice"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, choice->exts, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the container statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] siblings Siblings to add to. + * @return LY_ERR values. + */ +LY_ERR +parse_container(struct lysp_yang_ctx *ctx, struct lysp_node *parent, struct lysp_node **siblings) +{ + LY_ERR ret = 0; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + struct lysp_node_container *cont; + + /* create new container structure */ + LY_LIST_NEW_RET(PARSER_CTX(ctx), siblings, cont, next, LY_EMEM); + cont->nodetype = LYS_CONTAINER; + cont->parent = parent; + + /* get name */ + LY_CHECK_RET(get_argument(ctx, Y_IDENTIF_ARG, NULL, &word, &buf, &word_len)); + INSERT_WORD_GOTO(ctx, buf, cont->name, word, word_len, ret, cleanup); + + /* parse substatements */ + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_CONFIG: + LY_CHECK_RET(parse_config(ctx, &cont->flags, &cont->exts)); + break; + case LY_STMT_DESCRIPTION: + LY_CHECK_RET(parse_text_field(ctx, cont->dsc, LY_STMT_DESCRIPTION, 0, &cont->dsc, Y_STR_ARG, NULL, &cont->exts)); + break; + case LY_STMT_IF_FEATURE: + LY_CHECK_RET(parse_qnames(ctx, LY_STMT_IF_FEATURE, &cont->iffeatures, Y_STR_ARG, &cont->exts)); + break; + case LY_STMT_REFERENCE: + LY_CHECK_RET(parse_text_field(ctx, cont->ref, LY_STMT_REFERENCE, 0, &cont->ref, Y_STR_ARG, NULL, &cont->exts)); + break; + case LY_STMT_STATUS: + LY_CHECK_RET(parse_status(ctx, &cont->flags, &cont->exts)); + break; + case LY_STMT_WHEN: + LY_CHECK_RET(parse_when(ctx, &cont->when)); + break; + case LY_STMT_PRESENCE: + LY_CHECK_RET(parse_text_field(ctx, cont->presence, LY_STMT_PRESENCE, 0, &cont->presence, Y_STR_ARG, NULL, + &cont->exts)); + break; + + case LY_STMT_ANYDATA: + PARSER_CHECK_STMTVER2_RET(ctx, "anydata", "container"); + /* fall through */ + case LY_STMT_ANYXML: + LY_CHECK_RET(parse_any(ctx, kw, (struct lysp_node *)cont, &cont->child)); + break; + case LY_STMT_CHOICE: + LY_CHECK_RET(parse_choice(ctx, (struct lysp_node *)cont, &cont->child)); + break; + case LY_STMT_CONTAINER: + LY_CHECK_RET(parse_container(ctx, (struct lysp_node *)cont, &cont->child)); + break; + case LY_STMT_LEAF: + LY_CHECK_RET(parse_leaf(ctx, (struct lysp_node *)cont, &cont->child)); + break; + case LY_STMT_LEAF_LIST: + LY_CHECK_RET(parse_leaflist(ctx, (struct lysp_node *)cont, &cont->child)); + break; + case LY_STMT_LIST: + LY_CHECK_RET(parse_list(ctx, (struct lysp_node *)cont, &cont->child)); + break; + case LY_STMT_USES: + LY_CHECK_RET(parse_uses(ctx, (struct lysp_node *)cont, &cont->child)); + break; + + case LY_STMT_TYPEDEF: + LY_CHECK_RET(parse_typedef(ctx, (struct lysp_node *)cont, &cont->typedefs)); + break; + case LY_STMT_MUST: + LY_CHECK_RET(parse_restrs(ctx, kw, &cont->musts)); + break; + case LY_STMT_ACTION: + PARSER_CHECK_STMTVER2_RET(ctx, "action", "container"); + LY_CHECK_RET(parse_action(ctx, (struct lysp_node *)cont, &cont->actions)); + break; + case LY_STMT_GROUPING: + LY_CHECK_RET(parse_grouping(ctx, (struct lysp_node *)cont, &cont->groupings)); + break; + case LY_STMT_NOTIFICATION: + PARSER_CHECK_STMTVER2_RET(ctx, "notification", "container"); + LY_CHECK_RET(parse_notif(ctx, (struct lysp_node *)cont, &cont->notifs)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, cont, LY_STMT_CONTAINER, 0, &cont->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "container"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, cont->exts, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the list statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] siblings Siblings to add to. + * @return LY_ERR values. + */ +LY_ERR +parse_list(struct lysp_yang_ctx *ctx, struct lysp_node *parent, struct lysp_node **siblings) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + struct lysp_node_list *list; + + /* create new list structure */ + LY_LIST_NEW_RET(PARSER_CTX(ctx), siblings, list, next, LY_EMEM); + list->nodetype = LYS_LIST; + list->parent = parent; + + /* get name */ + LY_CHECK_RET(get_argument(ctx, Y_IDENTIF_ARG, NULL, &word, &buf, &word_len)); + INSERT_WORD_GOTO(ctx, buf, list->name, word, word_len, ret, cleanup); + + /* parse substatements */ + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_CONFIG: + LY_CHECK_RET(parse_config(ctx, &list->flags, &list->exts)); + break; + case LY_STMT_DESCRIPTION: + LY_CHECK_RET(parse_text_field(ctx, list->dsc, LY_STMT_DESCRIPTION, 0, &list->dsc, Y_STR_ARG, NULL, &list->exts)); + break; + case LY_STMT_IF_FEATURE: + LY_CHECK_RET(parse_qnames(ctx, LY_STMT_IF_FEATURE, &list->iffeatures, Y_STR_ARG, &list->exts)); + break; + case LY_STMT_REFERENCE: + LY_CHECK_RET(parse_text_field(ctx, list->ref, LY_STMT_REFERENCE, 0, &list->ref, Y_STR_ARG, NULL, &list->exts)); + break; + case LY_STMT_STATUS: + LY_CHECK_RET(parse_status(ctx, &list->flags, &list->exts)); + break; + case LY_STMT_WHEN: + LY_CHECK_RET(parse_when(ctx, &list->when)); + break; + case LY_STMT_KEY: + LY_CHECK_RET(parse_text_field(ctx, list, LY_STMT_KEY, 0, &list->key, Y_STR_ARG, NULL, &list->exts)); + break; + case LY_STMT_MAX_ELEMENTS: + LY_CHECK_RET(parse_maxelements(ctx, &list->max, &list->flags, &list->exts)); + break; + case LY_STMT_MIN_ELEMENTS: + LY_CHECK_RET(parse_minelements(ctx, &list->min, &list->flags, &list->exts)); + break; + case LY_STMT_ORDERED_BY: + LY_CHECK_RET(parse_orderedby(ctx, &list->node)); + break; + case LY_STMT_UNIQUE: + LY_CHECK_RET(parse_qnames(ctx, LY_STMT_UNIQUE, &list->uniques, Y_STR_ARG, &list->exts)); + break; + + case LY_STMT_ANYDATA: + PARSER_CHECK_STMTVER2_RET(ctx, "anydata", "list"); + /* fall through */ + case LY_STMT_ANYXML: + LY_CHECK_RET(parse_any(ctx, kw, (struct lysp_node *)list, &list->child)); + break; + case LY_STMT_CHOICE: + LY_CHECK_RET(parse_choice(ctx, (struct lysp_node *)list, &list->child)); + break; + case LY_STMT_CONTAINER: + LY_CHECK_RET(parse_container(ctx, (struct lysp_node *)list, &list->child)); + break; + case LY_STMT_LEAF: + LY_CHECK_RET(parse_leaf(ctx, (struct lysp_node *)list, &list->child)); + break; + case LY_STMT_LEAF_LIST: + LY_CHECK_RET(parse_leaflist(ctx, (struct lysp_node *)list, &list->child)); + break; + case LY_STMT_LIST: + LY_CHECK_RET(parse_list(ctx, (struct lysp_node *)list, &list->child)); + break; + case LY_STMT_USES: + LY_CHECK_RET(parse_uses(ctx, (struct lysp_node *)list, &list->child)); + break; + + case LY_STMT_TYPEDEF: + LY_CHECK_RET(parse_typedef(ctx, (struct lysp_node *)list, &list->typedefs)); + break; + case LY_STMT_MUST: + LY_CHECK_RET(parse_restrs(ctx, kw, &list->musts)); + break; + case LY_STMT_ACTION: + PARSER_CHECK_STMTVER2_RET(ctx, "action", "list"); + LY_CHECK_RET(parse_action(ctx, (struct lysp_node *)list, &list->actions)); + break; + case LY_STMT_GROUPING: + LY_CHECK_RET(parse_grouping(ctx, (struct lysp_node *)list, &list->groupings)); + break; + case LY_STMT_NOTIFICATION: + PARSER_CHECK_STMTVER2_RET(ctx, "notification", "list"); + LY_CHECK_RET(parse_notif(ctx, (struct lysp_node *)list, &list->notifs)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, list, LY_STMT_LIST, 0, &list->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "list"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, list->exts, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the yin-element statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] ext Extension to fill. + * @return LY_ERR values. + */ +static LY_ERR +parse_yinelement(struct lysp_yang_ctx *ctx, struct lysp_ext *ext) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + + if (ext->flags & LYS_YINELEM_MASK) { + LOGVAL_PARSER(ctx, LY_VCODE_DUPSTMT, "yin-element"); + return LY_EVALID; + } + + /* get value */ + LY_CHECK_RET(get_argument(ctx, Y_STR_ARG, NULL, &word, &buf, &word_len)); + + if ((word_len == ly_strlen_const("true")) && !strncmp(word, "true", word_len)) { + ext->flags |= LYS_YINELEM_TRUE; + } else if ((word_len == ly_strlen_const("false")) && !strncmp(word, "false", word_len)) { + ext->flags |= LYS_YINELEM_FALSE; + } else { + LOGVAL_PARSER(ctx, LY_VCODE_INVAL, (int)word_len, word, "yin-element"); + free(buf); + return LY_EVALID; + } + free(buf); + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, ext, LY_STMT_YIN_ELEMENT, 0, &ext->exts)); + LY_CHECK_RET(ret); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "yin-element"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, NULL, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the argument statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] ext Extension to fill. + * @return LY_ERR values. + */ +static LY_ERR +parse_argument(struct lysp_yang_ctx *ctx, struct lysp_ext *ext) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + + if (ext->argname) { + LOGVAL_PARSER(ctx, LY_VCODE_DUPSTMT, "argument"); + return LY_EVALID; + } + + /* get value */ + LY_CHECK_RET(get_argument(ctx, Y_IDENTIF_ARG, NULL, &word, &buf, &word_len)); + INSERT_WORD_GOTO(ctx, buf, ext->argname, word, word_len, ret, cleanup); + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_YIN_ELEMENT: + LY_CHECK_RET(parse_yinelement(ctx, ext)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, ext, LY_STMT_ARGUMENT, 0, &ext->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "argument"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, NULL, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the extension statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] extensions Extensions to add to. + * @return LY_ERR values. + */ +static LY_ERR +parse_extension(struct lysp_yang_ctx *ctx, struct lysp_ext **extensions) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + struct lysp_ext *ex; + + LY_ARRAY_NEW_RET(PARSER_CTX(ctx), *extensions, ex, LY_EMEM); + + /* get value */ + LY_CHECK_RET(get_argument(ctx, Y_IDENTIF_ARG, NULL, &word, &buf, &word_len)); + INSERT_WORD_GOTO(ctx, buf, ex->name, word, word_len, ret, cleanup); + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_DESCRIPTION: + LY_CHECK_RET(parse_text_field(ctx, ex->dsc, LY_STMT_DESCRIPTION, 0, &ex->dsc, Y_STR_ARG, NULL, &ex->exts)); + break; + case LY_STMT_REFERENCE: + LY_CHECK_RET(parse_text_field(ctx, ex->ref, LY_STMT_REFERENCE, 0, &ex->ref, Y_STR_ARG, NULL, &ex->exts)); + break; + case LY_STMT_STATUS: + LY_CHECK_RET(parse_status(ctx, &ex->flags, &ex->exts)); + break; + case LY_STMT_ARGUMENT: + LY_CHECK_RET(parse_argument(ctx, ex)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, ex, LY_STMT_EXTENSION, 0, &ex->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "extension"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, ex->exts, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the deviate statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] deviates Deviates to add to. + * @return LY_ERR values. + */ +LY_ERR +parse_deviate(struct lysp_yang_ctx *ctx, struct lysp_deviate **deviates) +{ + LY_ERR ret = LY_SUCCESS; + char *buf = NULL, *word; + size_t word_len, dev_mod; + enum ly_stmt kw; + struct lysf_ctx fctx = {.ctx = PARSER_CTX(ctx)}; + struct lysp_deviate *d = NULL; + struct lysp_deviate_add *d_add = NULL; + struct lysp_deviate_rpl *d_rpl = NULL; + struct lysp_deviate_del *d_del = NULL; + const char **d_units = NULL; + struct lysp_qname **d_uniques = NULL, **d_dflts = NULL; + struct lysp_restr **d_musts = NULL; + uint16_t *d_flags = 0; + uint32_t *d_min = 0, *d_max = 0; + + /* get value */ + LY_CHECK_GOTO(ret = get_argument(ctx, Y_STR_ARG, NULL, &word, &buf, &word_len), cleanup); + + if ((word_len == ly_strlen_const("not-supported")) && !strncmp(word, "not-supported", word_len)) { + dev_mod = LYS_DEV_NOT_SUPPORTED; + } else if ((word_len == ly_strlen_const("add")) && !strncmp(word, "add", word_len)) { + dev_mod = LYS_DEV_ADD; + } else if ((word_len == ly_strlen_const("replace")) && !strncmp(word, "replace", word_len)) { + dev_mod = LYS_DEV_REPLACE; + } else if ((word_len == ly_strlen_const("delete")) && !strncmp(word, "delete", word_len)) { + dev_mod = LYS_DEV_DELETE; + } else { + LOGVAL_PARSER(ctx, LY_VCODE_INVAL, (int)word_len, word, "deviate"); + ret = LY_EVALID; + goto cleanup; + } + + /* create structure */ + switch (dev_mod) { + case LYS_DEV_NOT_SUPPORTED: + d = calloc(1, sizeof *d); + LY_CHECK_ERR_GOTO(!d, LOGMEM(PARSER_CTX(ctx)); ret = LY_EMEM, cleanup); + break; + case LYS_DEV_ADD: + d_add = calloc(1, sizeof *d_add); + LY_CHECK_ERR_GOTO(!d_add, LOGMEM(PARSER_CTX(ctx)); ret = LY_EMEM, cleanup); + d = (struct lysp_deviate *)d_add; + d_units = &d_add->units; + d_uniques = &d_add->uniques; + d_dflts = &d_add->dflts; + d_musts = &d_add->musts; + d_flags = &d_add->flags; + d_min = &d_add->min; + d_max = &d_add->max; + break; + case LYS_DEV_REPLACE: + d_rpl = calloc(1, sizeof *d_rpl); + LY_CHECK_ERR_GOTO(!d_rpl, LOGMEM(PARSER_CTX(ctx)); ret = LY_EMEM, cleanup); + d = (struct lysp_deviate *)d_rpl; + d_units = &d_rpl->units; + d_flags = &d_rpl->flags; + d_min = &d_rpl->min; + d_max = &d_rpl->max; + break; + case LYS_DEV_DELETE: + d_del = calloc(1, sizeof *d_del); + LY_CHECK_ERR_GOTO(!d_del, LOGMEM(PARSER_CTX(ctx)); ret = LY_EMEM, cleanup); + d = (struct lysp_deviate *)d_del; + d_units = &d_del->units; + d_uniques = &d_del->uniques; + d_dflts = &d_del->dflts; + d_musts = &d_del->musts; + break; + default: + assert(0); + LOGINT(PARSER_CTX(ctx)); + ret = LY_EINT; + goto cleanup; + } + d->mod = dev_mod; + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_CONFIG: + switch (dev_mod) { + case LYS_DEV_NOT_SUPPORTED: + case LYS_DEV_DELETE: + LOGVAL_PARSER(ctx, LY_VCODE_INDEV, ly_devmod2str(dev_mod), lyplg_ext_stmt2str(kw)); + ret = LY_EVALID; + goto cleanup; + default: + LY_CHECK_GOTO(ret = parse_config(ctx, d_flags, &d->exts), cleanup); + break; + } + break; + case LY_STMT_DEFAULT: + switch (dev_mod) { + case LYS_DEV_NOT_SUPPORTED: + LOGVAL_PARSER(ctx, LY_VCODE_INDEV, ly_devmod2str(dev_mod), lyplg_ext_stmt2str(kw)); + ret = LY_EVALID; + goto cleanup; + case LYS_DEV_REPLACE: + ret = parse_text_field(ctx, &d_rpl->dflt, LY_STMT_DEFAULT, 0, &d_rpl->dflt.str, Y_STR_ARG, + &d_rpl->dflt.flags, &d->exts); + LY_CHECK_GOTO(ret, cleanup); + d_rpl->dflt.mod = PARSER_CUR_PMOD(ctx); + break; + default: + LY_CHECK_GOTO(ret = parse_qnames(ctx, LY_STMT_DEFAULT, d_dflts, Y_STR_ARG, &d->exts), cleanup); + break; + } + break; + case LY_STMT_MANDATORY: + switch (dev_mod) { + case LYS_DEV_NOT_SUPPORTED: + case LYS_DEV_DELETE: + LOGVAL_PARSER(ctx, LY_VCODE_INDEV, ly_devmod2str(dev_mod), lyplg_ext_stmt2str(kw)); + ret = LY_EVALID; + goto cleanup; + default: + LY_CHECK_GOTO(ret = parse_mandatory(ctx, d_flags, &d->exts), cleanup); + break; + } + break; + case LY_STMT_MAX_ELEMENTS: + switch (dev_mod) { + case LYS_DEV_NOT_SUPPORTED: + case LYS_DEV_DELETE: + LOGVAL_PARSER(ctx, LY_VCODE_INDEV, ly_devmod2str(dev_mod), lyplg_ext_stmt2str(kw)); + ret = LY_EVALID; + goto cleanup; + default: + LY_CHECK_GOTO(ret = parse_maxelements(ctx, d_max, d_flags, &d->exts), cleanup); + break; + } + break; + case LY_STMT_MIN_ELEMENTS: + switch (dev_mod) { + case LYS_DEV_NOT_SUPPORTED: + case LYS_DEV_DELETE: + LOGVAL_PARSER(ctx, LY_VCODE_INDEV, ly_devmod2str(dev_mod), lyplg_ext_stmt2str(kw)); + ret = LY_EVALID; + goto cleanup; + default: + LY_CHECK_GOTO(ret = parse_minelements(ctx, d_min, d_flags, &d->exts), cleanup); + break; + } + break; + case LY_STMT_MUST: + switch (dev_mod) { + case LYS_DEV_NOT_SUPPORTED: + case LYS_DEV_REPLACE: + LOGVAL_PARSER(ctx, LY_VCODE_INDEV, ly_devmod2str(dev_mod), lyplg_ext_stmt2str(kw)); + ret = LY_EVALID; + goto cleanup; + default: + LY_CHECK_GOTO(ret = parse_restrs(ctx, kw, d_musts), cleanup); + break; + } + break; + case LY_STMT_TYPE: + switch (dev_mod) { + case LYS_DEV_NOT_SUPPORTED: + case LYS_DEV_ADD: + case LYS_DEV_DELETE: + LOGVAL_PARSER(ctx, LY_VCODE_INDEV, ly_devmod2str(dev_mod), lyplg_ext_stmt2str(kw)); + ret = LY_EVALID; + goto cleanup; + default: + if (d_rpl->type) { + LOGVAL_PARSER(ctx, LY_VCODE_DUPSTMT, lyplg_ext_stmt2str(kw)); + ret = LY_EVALID; + goto cleanup; + } + d_rpl->type = calloc(1, sizeof *d_rpl->type); + LY_CHECK_ERR_GOTO(!d_rpl->type, LOGMEM(PARSER_CTX(ctx)); ret = LY_EMEM, cleanup); + LY_CHECK_GOTO(ret = parse_type(ctx, d_rpl->type), cleanup); + break; + } + break; + case LY_STMT_UNIQUE: + switch (dev_mod) { + case LYS_DEV_NOT_SUPPORTED: + case LYS_DEV_REPLACE: + LOGVAL_PARSER(ctx, LY_VCODE_INDEV, ly_devmod2str(dev_mod), lyplg_ext_stmt2str(kw)); + ret = LY_EVALID; + goto cleanup; + default: + LY_CHECK_GOTO(ret = parse_qnames(ctx, LY_STMT_UNIQUE, d_uniques, Y_STR_ARG, &d->exts), cleanup); + break; + } + break; + case LY_STMT_UNITS: + switch (dev_mod) { + case LYS_DEV_NOT_SUPPORTED: + LOGVAL_PARSER(ctx, LY_VCODE_INDEV, ly_devmod2str(dev_mod), lyplg_ext_stmt2str(kw)); + ret = LY_EVALID; + goto cleanup; + default: + ret = parse_text_field(ctx, *d_units, LY_STMT_UNITS, 0, d_units, Y_STR_ARG, NULL, &d->exts); + LY_CHECK_GOTO(ret, cleanup); + break; + } + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_GOTO(ret = parse_ext(ctx, word, word_len, d, LY_STMT_DEVIATE, 0, &d->exts), cleanup); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "deviate"); + ret = LY_EVALID; + goto cleanup; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, d->exts, ret, cleanup); + } + +cleanup: + free(buf); + if (ret) { + lysp_deviate_free(&fctx, d); + free(d); + } else { + /* insert into siblings */ + LY_LIST_INSERT(deviates, d, next); + } + return ret; +} + +/** + * @brief Parse the deviation statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] deviations Deviations to add to. + * @return LY_ERR values. + */ +LY_ERR +parse_deviation(struct lysp_yang_ctx *ctx, struct lysp_deviation **deviations) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + struct lysp_deviation *dev; + struct lysf_ctx fctx = {.ctx = PARSER_CTX(ctx)}; + + LY_ARRAY_NEW_RET(PARSER_CTX(ctx), *deviations, dev, LY_EMEM); + + /* get value */ + LY_CHECK_GOTO(ret = get_argument(ctx, Y_STR_ARG, NULL, &word, &buf, &word_len), cleanup); + CHECK_NONEMPTY(ctx, word_len, "deviation"); + INSERT_WORD_GOTO(ctx, buf, dev->nodeid, word, word_len, ret, cleanup); + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_DESCRIPTION: + ret = parse_text_field(ctx, dev->dsc, LY_STMT_DESCRIPTION, 0, &dev->dsc, Y_STR_ARG, NULL, &dev->exts); + LY_CHECK_GOTO(ret, cleanup); + break; + case LY_STMT_DEVIATE: + LY_CHECK_GOTO(ret = parse_deviate(ctx, &dev->deviates), cleanup); + break; + case LY_STMT_REFERENCE: + ret = parse_text_field(ctx, dev->ref, LY_STMT_REFERENCE, 0, &dev->ref, Y_STR_ARG, NULL, &dev->exts); + LY_CHECK_GOTO(ret, cleanup); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_GOTO(ret = parse_ext(ctx, word, word_len, dev, LY_STMT_DEVIATION, 0, &dev->exts), cleanup); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "deviation"); + ret = LY_EVALID; + goto cleanup; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, dev->exts, ret, cleanup); + } + + /* mandatory substatements */ + if (!dev->deviates) { + LOGVAL_PARSER(ctx, LY_VCODE_MISSTMT, "deviate", "deviation"); + ret = LY_EVALID; + goto cleanup; + } + +cleanup: + if (ret) { + lysp_deviation_free(&fctx, dev); + LY_ARRAY_DECREMENT_FREE(*deviations); + } + return ret; +} + +/** + * @brief Parse the feature statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] features Features to add to. + * @return LY_ERR values. + */ +LY_ERR +parse_feature(struct lysp_yang_ctx *ctx, struct lysp_feature **features) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + struct lysp_feature *feat; + + LY_ARRAY_NEW_RET(PARSER_CTX(ctx), *features, feat, LY_EMEM); + + /* get value */ + LY_CHECK_RET(get_argument(ctx, Y_IDENTIF_ARG, NULL, &word, &buf, &word_len)); + INSERT_WORD_GOTO(ctx, buf, feat->name, word, word_len, ret, cleanup); + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_DESCRIPTION: + LY_CHECK_RET(parse_text_field(ctx, feat->dsc, LY_STMT_DESCRIPTION, 0, &feat->dsc, Y_STR_ARG, NULL, &feat->exts)); + break; + case LY_STMT_IF_FEATURE: + LY_CHECK_RET(parse_qnames(ctx, LY_STMT_IF_FEATURE, &feat->iffeatures, Y_STR_ARG, &feat->exts)); + break; + case LY_STMT_REFERENCE: + LY_CHECK_RET(parse_text_field(ctx, feat->ref, LY_STMT_REFERENCE, 0, &feat->ref, Y_STR_ARG, NULL, &feat->exts)); + break; + case LY_STMT_STATUS: + LY_CHECK_RET(parse_status(ctx, &feat->flags, &feat->exts)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, feat, LY_STMT_FEATURE, 0, &feat->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "feature"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, feat->exts, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse the identity statement. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] identities Identities to add to. + * @return LY_ERR values. + */ +LY_ERR +parse_identity(struct lysp_yang_ctx *ctx, struct lysp_ident **identities) +{ + LY_ERR ret = LY_SUCCESS; + char *buf, *word; + size_t word_len; + enum ly_stmt kw; + struct lysp_ident *ident; + + LY_ARRAY_NEW_RET(PARSER_CTX(ctx), *identities, ident, LY_EMEM); + + /* get value */ + LY_CHECK_RET(get_argument(ctx, Y_IDENTIF_ARG, NULL, &word, &buf, &word_len)); + INSERT_WORD_GOTO(ctx, buf, ident->name, word, word_len, ret, cleanup); + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + switch (kw) { + case LY_STMT_DESCRIPTION: + LY_CHECK_RET(parse_text_field(ctx, ident->dsc, LY_STMT_DESCRIPTION, 0, &ident->dsc, Y_STR_ARG, NULL, &ident->exts)); + break; + case LY_STMT_IF_FEATURE: + PARSER_CHECK_STMTVER2_RET(ctx, "if-feature", "identity"); + LY_CHECK_RET(parse_qnames(ctx, LY_STMT_IF_FEATURE, &ident->iffeatures, Y_STR_ARG, &ident->exts)); + break; + case LY_STMT_REFERENCE: + LY_CHECK_RET(parse_text_field(ctx, ident->ref, LY_STMT_REFERENCE, 0, &ident->ref, Y_STR_ARG, NULL, &ident->exts)); + break; + case LY_STMT_STATUS: + LY_CHECK_RET(parse_status(ctx, &ident->flags, &ident->exts)); + break; + case LY_STMT_BASE: + if (ident->bases && (PARSER_CUR_PMOD(ctx)->version < LYS_VERSION_1_1)) { + LOGVAL_PARSER(ctx, LYVE_SYNTAX_YANG, + "Identity can be derived from multiple base identities only in YANG 1.1 modules"); + return LY_EVALID; + } + LY_CHECK_RET(parse_text_fields(ctx, LY_STMT_BASE, &ident->bases, Y_PREF_IDENTIF_ARG, &ident->exts)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, ident, LY_STMT_IDENTITY, 0, &ident->exts)); + break; + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "identity"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, ident->exts, ret, cleanup); + } + +cleanup: + return ret; +} + +/** + * @brief Parse module substatements. + * + * @param[in] ctx yang parser context for logging. + * @param[in,out] mod Module to write to. + * @return LY_ERR values. + */ +LY_ERR +parse_module(struct lysp_yang_ctx *ctx, struct lysp_module *mod) +{ + LY_ERR ret = 0; + char *buf, *word; + size_t word_len; + enum ly_stmt kw, prev_kw = 0; + enum yang_module_stmt mod_stmt = Y_MOD_MODULE_HEADER; + const struct lysp_submodule *dup; + + mod->is_submod = 0; + + /* module name */ + LY_CHECK_RET(get_argument(ctx, Y_IDENTIF_ARG, NULL, &word, &buf, &word_len)); + INSERT_WORD_GOTO(ctx, buf, mod->mod->name, word, word_len, ret, cleanup); + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + +#define CHECK_ORDER(SECTION) \ + if (mod_stmt > SECTION) {\ + LOGVAL_PARSER(ctx, LY_VCODE_INORD, lyplg_ext_stmt2str(kw), lyplg_ext_stmt2str(prev_kw)); return LY_EVALID;\ + } mod_stmt = SECTION + + switch (kw) { + /* module header */ + case LY_STMT_NAMESPACE: + case LY_STMT_PREFIX: + CHECK_ORDER(Y_MOD_MODULE_HEADER); + break; + case LY_STMT_YANG_VERSION: + CHECK_ORDER(Y_MOD_MODULE_HEADER); + break; + /* linkage */ + case LY_STMT_INCLUDE: + case LY_STMT_IMPORT: + CHECK_ORDER(Y_MOD_LINKAGE); + break; + /* meta */ + case LY_STMT_ORGANIZATION: + case LY_STMT_CONTACT: + case LY_STMT_DESCRIPTION: + case LY_STMT_REFERENCE: + CHECK_ORDER(Y_MOD_META); + break; + + /* revision */ + case LY_STMT_REVISION: + CHECK_ORDER(Y_MOD_REVISION); + break; + /* body */ + case LY_STMT_ANYDATA: + case LY_STMT_ANYXML: + case LY_STMT_AUGMENT: + case LY_STMT_CHOICE: + case LY_STMT_CONTAINER: + case LY_STMT_DEVIATION: + case LY_STMT_EXTENSION: + case LY_STMT_FEATURE: + case LY_STMT_GROUPING: + case LY_STMT_IDENTITY: + case LY_STMT_LEAF: + case LY_STMT_LEAF_LIST: + case LY_STMT_LIST: + case LY_STMT_NOTIFICATION: + case LY_STMT_RPC: + case LY_STMT_TYPEDEF: + case LY_STMT_USES: + mod_stmt = Y_MOD_BODY; + break; + case LY_STMT_EXTENSION_INSTANCE: + /* no place in the statement order defined */ + break; + default: + /* error handled in the next switch */ + break; + } +#undef CHECK_ORDER + + prev_kw = kw; + switch (kw) { + /* module header */ + case LY_STMT_YANG_VERSION: + LY_CHECK_RET(parse_yangversion(ctx, mod)); + break; + case LY_STMT_NAMESPACE: + LY_CHECK_RET(parse_text_field(ctx, mod, LY_STMT_NAMESPACE, 0, &mod->mod->ns, Y_STR_ARG, NULL, &mod->exts)); + break; + case LY_STMT_PREFIX: + LY_CHECK_RET(parse_text_field(ctx, mod->mod->prefix, LY_STMT_PREFIX, 0, &mod->mod->prefix, Y_IDENTIF_ARG, + NULL, &mod->exts)); + break; + + /* linkage */ + case LY_STMT_INCLUDE: + LY_CHECK_RET(parse_include(ctx, mod->mod->name, &mod->includes)); + break; + case LY_STMT_IMPORT: + LY_CHECK_RET(parse_import(ctx, mod->mod->prefix, &mod->imports)); + break; + + /* meta */ + case LY_STMT_ORGANIZATION: + LY_CHECK_RET(parse_text_field(ctx, mod, LY_STMT_ORGANIZATION, 0, &mod->mod->org, Y_STR_ARG, NULL, &mod->exts)); + break; + case LY_STMT_CONTACT: + LY_CHECK_RET(parse_text_field(ctx, mod, LY_STMT_CONTACT, 0, &mod->mod->contact, Y_STR_ARG, NULL, &mod->exts)); + break; + case LY_STMT_DESCRIPTION: + LY_CHECK_RET(parse_text_field(ctx, mod->mod->dsc, LY_STMT_DESCRIPTION, 0, &mod->mod->dsc, Y_STR_ARG, NULL, + &mod->exts)); + break; + case LY_STMT_REFERENCE: + LY_CHECK_RET(parse_text_field(ctx, mod->mod->ref, LY_STMT_REFERENCE, 0, &mod->mod->ref, Y_STR_ARG, NULL, + &mod->exts)); + break; + + /* revision */ + case LY_STMT_REVISION: + LY_CHECK_RET(parse_revision(ctx, &mod->revs)); + break; + + /* body */ + case LY_STMT_ANYDATA: + PARSER_CHECK_STMTVER2_RET(ctx, "anydata", "module"); + /* fall through */ + case LY_STMT_ANYXML: + LY_CHECK_RET(parse_any(ctx, kw, NULL, &mod->data)); + break; + case LY_STMT_CHOICE: + LY_CHECK_RET(parse_choice(ctx, NULL, &mod->data)); + break; + case LY_STMT_CONTAINER: + LY_CHECK_RET(parse_container(ctx, NULL, &mod->data)); + break; + case LY_STMT_LEAF: + LY_CHECK_RET(parse_leaf(ctx, NULL, &mod->data)); + break; + case LY_STMT_LEAF_LIST: + LY_CHECK_RET(parse_leaflist(ctx, NULL, &mod->data)); + break; + case LY_STMT_LIST: + LY_CHECK_RET(parse_list(ctx, NULL, &mod->data)); + break; + case LY_STMT_USES: + LY_CHECK_RET(parse_uses(ctx, NULL, &mod->data)); + break; + + case LY_STMT_AUGMENT: + LY_CHECK_RET(parse_augment(ctx, NULL, &mod->augments)); + break; + case LY_STMT_DEVIATION: + LY_CHECK_RET(parse_deviation(ctx, &mod->deviations)); + break; + case LY_STMT_EXTENSION: + LY_CHECK_RET(parse_extension(ctx, &mod->extensions)); + break; + case LY_STMT_FEATURE: + LY_CHECK_RET(parse_feature(ctx, &mod->features)); + break; + case LY_STMT_GROUPING: + LY_CHECK_RET(parse_grouping(ctx, NULL, &mod->groupings)); + break; + case LY_STMT_IDENTITY: + LY_CHECK_RET(parse_identity(ctx, &mod->identities)); + break; + case LY_STMT_NOTIFICATION: + LY_CHECK_RET(parse_notif(ctx, NULL, &mod->notifs)); + break; + case LY_STMT_RPC: + LY_CHECK_RET(parse_action(ctx, NULL, &mod->rpcs)); + break; + case LY_STMT_TYPEDEF: + LY_CHECK_RET(parse_typedef(ctx, NULL, &mod->typedefs)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, mod, LY_STMT_MODULE, 0, &mod->exts)); + break; + + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "module"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, mod->exts, ret, cleanup); + } + + /* mandatory substatements */ + if (!mod->mod->ns) { + LOGVAL_PARSER(ctx, LY_VCODE_MISSTMT, "namespace", "module"); + return LY_EVALID; + } else if (!mod->mod->prefix) { + LOGVAL_PARSER(ctx, LY_VCODE_MISSTMT, "prefix", "module"); + return LY_EVALID; + } + + /* submodules share the namespace with the module names, so there must not be + * a submodule of the same name in the context, no need for revision matching */ + dup = ly_ctx_get_submodule_latest(PARSER_CTX(ctx), mod->mod->name); + if (dup) { + LOGVAL_PARSER(ctx, LY_VCODE_NAME2_COL, "module", "submodule", mod->mod->name); + return LY_EVALID; + } + +cleanup: + return ret; +} + +/** + * @brief Parse submodule substatements. + * + * @param[in] ctx yang parser context for logging. + * @param[out] submod Parsed submodule structure. + * + * @return LY_ERR values. + */ +LY_ERR +parse_submodule(struct lysp_yang_ctx *ctx, struct lysp_submodule *submod) +{ + LY_ERR ret = 0; + char *buf, *word; + size_t word_len; + enum ly_stmt kw, prev_kw = 0; + enum yang_module_stmt mod_stmt = Y_MOD_MODULE_HEADER; + const struct lysp_submodule *dup; + + submod->is_submod = 1; + + /* submodule name */ + LY_CHECK_RET(get_argument(ctx, Y_IDENTIF_ARG, NULL, &word, &buf, &word_len)); + INSERT_WORD_GOTO(ctx, buf, submod->name, word, word_len, ret, cleanup); + + YANG_READ_SUBSTMT_FOR_GOTO(ctx, kw, word, word_len, ret, cleanup) { + +#define CHECK_ORDER(SECTION) \ + if (mod_stmt > SECTION) {LOGVAL_PARSER(ctx, LY_VCODE_INORD, lyplg_ext_stmt2str(kw), lyplg_ext_stmt2str(prev_kw)); return LY_EVALID;}mod_stmt = SECTION + + switch (kw) { + /* module header */ + case LY_STMT_BELONGS_TO: + CHECK_ORDER(Y_MOD_MODULE_HEADER); + break; + case LY_STMT_YANG_VERSION: + CHECK_ORDER(Y_MOD_MODULE_HEADER); + break; + /* linkage */ + case LY_STMT_INCLUDE: + case LY_STMT_IMPORT: + CHECK_ORDER(Y_MOD_LINKAGE); + break; + /* meta */ + case LY_STMT_ORGANIZATION: + case LY_STMT_CONTACT: + case LY_STMT_DESCRIPTION: + case LY_STMT_REFERENCE: + CHECK_ORDER(Y_MOD_META); + break; + + /* revision */ + case LY_STMT_REVISION: + CHECK_ORDER(Y_MOD_REVISION); + break; + /* body */ + case LY_STMT_ANYDATA: + case LY_STMT_ANYXML: + case LY_STMT_AUGMENT: + case LY_STMT_CHOICE: + case LY_STMT_CONTAINER: + case LY_STMT_DEVIATION: + case LY_STMT_EXTENSION: + case LY_STMT_FEATURE: + case LY_STMT_GROUPING: + case LY_STMT_IDENTITY: + case LY_STMT_LEAF: + case LY_STMT_LEAF_LIST: + case LY_STMT_LIST: + case LY_STMT_NOTIFICATION: + case LY_STMT_RPC: + case LY_STMT_TYPEDEF: + case LY_STMT_USES: + mod_stmt = Y_MOD_BODY; + break; + case LY_STMT_EXTENSION_INSTANCE: + /* no place in the statement order defined */ + break; + default: + /* error handled in the next switch */ + break; + } +#undef CHECK_ORDER + + prev_kw = kw; + switch (kw) { + /* module header */ + case LY_STMT_YANG_VERSION: + LY_CHECK_RET(parse_yangversion(ctx, (struct lysp_module *)submod)); + break; + case LY_STMT_BELONGS_TO: + LY_CHECK_RET(parse_belongsto(ctx, submod)); + break; + + /* linkage */ + case LY_STMT_INCLUDE: + if (submod->version == LYS_VERSION_1_1) { + LOGWRN(PARSER_CTX(ctx), "YANG version 1.1 expects all includes in main module, includes in submodules (%s) are not necessary.", + submod->name); + } + LY_CHECK_RET(parse_include(ctx, submod->name, &submod->includes)); + break; + case LY_STMT_IMPORT: + LY_CHECK_RET(parse_import(ctx, submod->prefix, &submod->imports)); + break; + + /* meta */ + case LY_STMT_ORGANIZATION: + LY_CHECK_RET(parse_text_field(ctx, submod, LY_STMT_ORGANIZATION, 0, &submod->org, Y_STR_ARG, NULL, &submod->exts)); + break; + case LY_STMT_CONTACT: + LY_CHECK_RET(parse_text_field(ctx, submod, LY_STMT_CONTACT, 0, &submod->contact, Y_STR_ARG, NULL, &submod->exts)); + break; + case LY_STMT_DESCRIPTION: + LY_CHECK_RET(parse_text_field(ctx, submod->dsc, LY_STMT_DESCRIPTION, 0, &submod->dsc, Y_STR_ARG, NULL, &submod->exts)); + break; + case LY_STMT_REFERENCE: + LY_CHECK_RET(parse_text_field(ctx, submod->ref, LY_STMT_REFERENCE, 0, &submod->ref, Y_STR_ARG, NULL, &submod->exts)); + break; + + /* revision */ + case LY_STMT_REVISION: + LY_CHECK_RET(parse_revision(ctx, &submod->revs)); + break; + + /* body */ + case LY_STMT_ANYDATA: + PARSER_CHECK_STMTVER2_RET(ctx, "anydata", "submodule"); + /* fall through */ + case LY_STMT_ANYXML: + LY_CHECK_RET(parse_any(ctx, kw, NULL, &submod->data)); + break; + case LY_STMT_CHOICE: + LY_CHECK_RET(parse_choice(ctx, NULL, &submod->data)); + break; + case LY_STMT_CONTAINER: + LY_CHECK_RET(parse_container(ctx, NULL, &submod->data)); + break; + case LY_STMT_LEAF: + LY_CHECK_RET(parse_leaf(ctx, NULL, &submod->data)); + break; + case LY_STMT_LEAF_LIST: + LY_CHECK_RET(parse_leaflist(ctx, NULL, &submod->data)); + break; + case LY_STMT_LIST: + LY_CHECK_RET(parse_list(ctx, NULL, &submod->data)); + break; + case LY_STMT_USES: + LY_CHECK_RET(parse_uses(ctx, NULL, &submod->data)); + break; + + case LY_STMT_AUGMENT: + LY_CHECK_RET(parse_augment(ctx, NULL, &submod->augments)); + break; + case LY_STMT_DEVIATION: + LY_CHECK_RET(parse_deviation(ctx, &submod->deviations)); + break; + case LY_STMT_EXTENSION: + LY_CHECK_RET(parse_extension(ctx, &submod->extensions)); + break; + case LY_STMT_FEATURE: + LY_CHECK_RET(parse_feature(ctx, &submod->features)); + break; + case LY_STMT_GROUPING: + LY_CHECK_RET(parse_grouping(ctx, NULL, &submod->groupings)); + break; + case LY_STMT_IDENTITY: + LY_CHECK_RET(parse_identity(ctx, &submod->identities)); + break; + case LY_STMT_NOTIFICATION: + LY_CHECK_RET(parse_notif(ctx, NULL, &submod->notifs)); + break; + case LY_STMT_RPC: + LY_CHECK_RET(parse_action(ctx, NULL, &submod->rpcs)); + break; + case LY_STMT_TYPEDEF: + LY_CHECK_RET(parse_typedef(ctx, NULL, &submod->typedefs)); + break; + case LY_STMT_EXTENSION_INSTANCE: + LY_CHECK_RET(parse_ext(ctx, word, word_len, submod, LY_STMT_SUBMODULE, 0, &submod->exts)); + break; + + default: + LOGVAL_PARSER(ctx, LY_VCODE_INCHILDSTMT, lyplg_ext_stmt2str(kw), "submodule"); + return LY_EVALID; + } + YANG_READ_SUBSTMT_NEXT_ITER(ctx, kw, word, word_len, submod->exts, ret, cleanup); + } + + /* mandatory substatements */ + if (!submod->prefix) { + LOGVAL_PARSER(ctx, LY_VCODE_MISSTMT, "belongs-to", "submodule"); + return LY_EVALID; + } + + /* submodules share the namespace with the module names, so there must not be + * a submodule of the same name in the context, no need for revision matching */ + dup = ly_ctx_get_submodule_latest(PARSER_CTX(ctx), submod->name); + /* main modules may have different revisions */ + if (dup && strcmp(dup->mod->name, submod->mod->name)) { + LOGVAL_PARSER(ctx, LY_VCODE_NAME_COL, "submodules", dup->name); + return LY_EVALID; + } + +cleanup: + return ret; +} + +/** + * @brief Skip any redundant characters, namely whitespaces and comments. + * + * @param[in] ctx Yang parser context. + * @return LY_SUCCESS on success. + * @return LY_EVALID on invalid comment. + */ +static LY_ERR +skip_redundant_chars(struct lysp_yang_ctx *ctx) +{ + /* read some trailing spaces, new lines, or comments */ + while (ctx->in->current[0]) { + if (!strncmp(ctx->in->current, "//", 2)) { + /* one-line comment */ + ly_in_skip(ctx->in, 2); + LY_CHECK_RET(skip_comment(ctx, 1)); + } else if (!strncmp(ctx->in->current, "/*", 2)) { + /* block comment */ + ly_in_skip(ctx->in, 2); + LY_CHECK_RET(skip_comment(ctx, 2)); + } else if (isspace(ctx->in->current[0])) { + /* whitespace */ + if (ctx->in->current[0] == '\n') { + LY_IN_NEW_LINE(ctx->in); + } + ly_in_skip(ctx->in, 1); + } else { + break; + } + } + + return LY_SUCCESS; +} + +LY_ERR +yang_parse_submodule(struct lysp_yang_ctx **context, struct ly_ctx *ly_ctx, struct lysp_ctx *main_ctx, + struct ly_in *in, struct lysp_submodule **submod) +{ + LY_ERR ret = LY_SUCCESS; + char *word; + size_t word_len; + enum ly_stmt kw; + struct lysp_submodule *mod_p = NULL; + struct lysf_ctx fctx = {.ctx = ly_ctx}; + + assert(context && ly_ctx && main_ctx && in && submod); + + /* create context */ + *context = calloc(1, sizeof **context); + LY_CHECK_ERR_RET(!(*context), LOGMEM(ly_ctx), LY_EMEM); + (*context)->format = LYS_IN_YANG; + (*context)->in = in; + (*context)->main_ctx = main_ctx; + + mod_p = calloc(1, sizeof *mod_p); + LY_CHECK_ERR_GOTO(!mod_p, LOGMEM(ly_ctx); ret = LY_EMEM, cleanup); + mod_p->mod = PARSER_CUR_PMOD(main_ctx)->mod; + mod_p->parsing = 1; + + /* use main context parsed mods adding the current one */ + (*context)->parsed_mods = main_ctx->parsed_mods; + ly_set_add((*context)->parsed_mods, mod_p, 1, NULL); + + ly_log_location(NULL, NULL, NULL, in); + + /* skip redundant but valid characters at the beginning */ + ret = skip_redundant_chars(*context); + LY_CHECK_GOTO(ret, cleanup); + + /* "module"/"submodule" */ + ret = get_keyword(*context, &kw, &word, &word_len); + LY_CHECK_GOTO(ret, cleanup); + + if (kw == LY_STMT_MODULE) { + LOGERR(ly_ctx, LY_EDENIED, "Input data contains module in situation when a submodule is expected."); + ret = LY_EINVAL; + goto cleanup; + } else if (kw != LY_STMT_SUBMODULE) { + LOGVAL_PARSER(*context, LY_VCODE_MOD_SUBOMD, lyplg_ext_stmt2str(kw)); + ret = LY_EVALID; + goto cleanup; + } + + /* substatements */ + ret = parse_submodule(*context, mod_p); + LY_CHECK_GOTO(ret, cleanup); + + /* skip redundant but valid characters at the end */ + ret = skip_redundant_chars(*context); + LY_CHECK_GOTO(ret, cleanup); + if (in->current[0]) { + LOGVAL_PARSER(*context, LY_VCODE_TRAILING_SUBMOD, 15, in->current, strlen(in->current) > 15 ? "..." : ""); + ret = LY_EVALID; + goto cleanup; + } + + mod_p->parsing = 0; + *submod = mod_p; + +cleanup: + ly_log_location_revert(0, 0, 0, 1); + if (ret) { + lysp_module_free(&fctx, (struct lysp_module *)mod_p); + lysp_yang_ctx_free(*context); + *context = NULL; + } + + return ret; +} + +LY_ERR +yang_parse_module(struct lysp_yang_ctx **context, struct ly_in *in, struct lys_module *mod) +{ + LY_ERR ret = LY_SUCCESS; + char *word; + size_t word_len; + enum ly_stmt kw; + struct lysp_module *mod_p = NULL; + struct lysf_ctx fctx = {.ctx = mod->ctx}; + + /* create context */ + *context = calloc(1, sizeof **context); + LY_CHECK_ERR_RET(!(*context), LOGMEM(mod->ctx), LY_EMEM); + (*context)->format = LYS_IN_YANG; + LY_CHECK_ERR_RET(ly_set_new(&(*context)->parsed_mods), free(*context); LOGMEM(mod->ctx), LY_EMEM); + (*context)->in = in; + (*context)->main_ctx = (struct lysp_ctx *)(*context); + + mod_p = calloc(1, sizeof *mod_p); + LY_CHECK_ERR_GOTO(!mod_p, LOGMEM(mod->ctx), cleanup); + mod_p->mod = mod; + ly_set_add((*context)->parsed_mods, mod_p, 1, NULL); + + ly_log_location(NULL, NULL, NULL, in); + + /* skip redundant but valid characters at the beginning */ + ret = skip_redundant_chars(*context); + LY_CHECK_GOTO(ret, cleanup); + + /* "module"/"submodule" */ + ret = get_keyword(*context, &kw, &word, &word_len); + LY_CHECK_GOTO(ret, cleanup); + + if (kw == LY_STMT_SUBMODULE) { + LOGERR(mod->ctx, LY_EDENIED, "Input data contains submodule which cannot be parsed directly without its main module."); + ret = LY_EINVAL; + goto cleanup; + } else if (kw != LY_STMT_MODULE) { + LOGVAL_PARSER((*context), LY_VCODE_MOD_SUBOMD, lyplg_ext_stmt2str(kw)); + ret = LY_EVALID; + goto cleanup; + } + + /* substatements */ + ret = parse_module(*context, mod_p); + LY_CHECK_GOTO(ret, cleanup); + + /* skip redundant but valid characters at the end */ + ret = skip_redundant_chars(*context); + LY_CHECK_GOTO(ret, cleanup); + if (in->current[0]) { + LOGVAL_PARSER(*context, LY_VCODE_TRAILING_MOD, 15, in->current, strlen(in->current) > 15 ? "..." : ""); + ret = LY_EVALID; + goto cleanup; + } + + mod->parsed = mod_p; + +cleanup: + ly_log_location_revert(0, 0, 0, 1); + if (ret) { + lysp_module_free(&fctx, mod_p); + lysp_yang_ctx_free(*context); + *context = NULL; + } + + return ret; +} |