diff options
Diffstat (limited to 'src/schema_compile_amend.c')
| -rw-r--r-- | src/schema_compile_amend.c | 2623 |
1 files changed, 2623 insertions, 0 deletions
diff --git a/src/schema_compile_amend.c b/src/schema_compile_amend.c new file mode 100644 index 0000000..4eac4ec --- /dev/null +++ b/src/schema_compile_amend.c @@ -0,0 +1,2623 @@ +/** + * @file schema_compile_amend.c + * @author Radek Krejci <rkrejci@cesnet.cz> + * @author Michal Vasko <mvasko@cesnet.cz> + * @brief Schema compilation of augments, deviations, and refines. + * + * Copyright (c) 2015 - 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 + */ + +#define _GNU_SOURCE + +#include "schema_compile_amend.h" + +#include <assert.h> +#include <stddef.h> +#include <stdint.h> +#include <stdlib.h> +#include <string.h> + +#include "dict.h" +#include "log.h" +#include "ly_common.h" +#include "schema_compile.h" +#include "schema_compile_node.h" +#include "schema_features.h" +#include "set.h" +#include "tree.h" +#include "tree_data_internal.h" +#include "tree_edit.h" +#include "tree_schema.h" +#include "tree_schema_internal.h" +#include "xpath.h" + +/** + * @brief Free a nodeid structure. + * + * @param[in] ctx Context to use. + * @param[in] nodeid Nodeid to free. + */ +static void +lysc_nodeid_free(const struct ly_ctx *ctx, struct lysc_nodeid *nodeid) +{ + uint32_t i; + + if (!nodeid) { + return; + } + + for (i = 0; i < nodeid->count; ++i) { + lydict_remove(ctx, nodeid->prefix[i]); + lydict_remove(ctx, nodeid->name[i]); + } + free(nodeid->prefix); + free(nodeid->name); + free(nodeid); +} + +/** + * @brief Compile a schema-node-id into a temporary array of prefixes and node names. + * + * @param[in] ctx Context to use. + * @param[in] str Schema-node-id to compile. + * @param[out] nodeid Compiled nodeid. + * @return LY_ERR value. + */ +static LY_ERR +lys_precompile_nodeid(const struct ly_ctx *ctx, const char *str, struct lysc_nodeid **nodeid) +{ + LY_ERR rc = LY_SUCCESS; + struct lyxp_expr *exp = NULL; + void *mem; + const char *ptr, *name; + size_t len; + uint32_t i; + + *nodeid = NULL; + + /* parse */ + rc = lyxp_expr_parse(ctx, str, strlen(str), 0, &exp); + LY_CHECK_GOTO(rc, cleanup); + + /* alloc */ + *nodeid = calloc(1, sizeof **nodeid); + LY_CHECK_ERR_GOTO(!*nodeid, LOGMEM(ctx); rc = LY_EMEM, cleanup); + + /* store the full schema-node-id */ + (*nodeid)->str = str; + + /* absolute vs. relative path */ + i = 0; + if (exp->tokens[0] == LYXP_TOKEN_NAMETEST) { + goto relative_path; + } + + while (i < exp->used) { + /* skip '/' */ + assert(exp->tokens[i] == LYXP_TOKEN_OPER_PATH); + ++i; + +relative_path: + /* new node */ + mem = realloc((*nodeid)->prefix, ((*nodeid)->count + 1) * sizeof *(*nodeid)->prefix); + LY_CHECK_ERR_GOTO(!mem, LOGMEM(ctx); rc = LY_EMEM, cleanup); + (*nodeid)->prefix = mem; + (*nodeid)->prefix[(*nodeid)->count] = NULL; + + mem = realloc((*nodeid)->name, ((*nodeid)->count + 1) * sizeof *(*nodeid)->name); + LY_CHECK_ERR_GOTO(!mem, LOGMEM(ctx); rc = LY_EMEM, cleanup); + (*nodeid)->name = mem; + (*nodeid)->name[(*nodeid)->count] = NULL; + + ++(*nodeid)->count; + + /* compile the name test */ + assert(exp->tokens[i] == LYXP_TOKEN_NAMETEST); + name = str + exp->tok_pos[i]; + len = exp->tok_len[i]; + ptr = ly_strnchr(name, ':', len); + if (ptr) { + /* store prefix */ + rc = lydict_insert(ctx, name, ptr - name, &(*nodeid)->prefix[(*nodeid)->count - 1]); + LY_CHECK_GOTO(rc, cleanup); + + /* move name */ + len -= (ptr - name) + 1; + name = ptr + 1; + } + + /* store name */ + rc = lydict_insert(ctx, name, len, &(*nodeid)->name[(*nodeid)->count - 1]); + LY_CHECK_GOTO(rc, cleanup); + + ++i; + } + +cleanup: + lyxp_expr_free(ctx, exp); + if (rc) { + lysc_nodeid_free(ctx, *nodeid); + *nodeid = NULL; + } + return rc; +} + +/** + * @brief Get module of a single nodeid node name test. + * + * @param[in] ctx libyang context. + * @param[in] prefix_dict Optional prefix of the node test, in the dictionary. + * @param[in] pmod Both current and prefix module for resolving prefixes and to return in case of no prefix. + * @return Resolved module. + */ +static const struct lys_module * +lys_schema_node_get_module(const struct ly_ctx *ctx, const char *prefix_dict, const struct lysp_module *pmod) +{ + const char *local_prefix; + LY_ARRAY_COUNT_TYPE u; + + if (!prefix_dict) { + /* local module */ + return pmod->mod; + } + + local_prefix = pmod->is_submod ? ((struct lysp_submodule *)pmod)->prefix : pmod->mod->prefix; + if (local_prefix == prefix_dict) { + /* local module prefix */ + return pmod->mod; + } + + LY_ARRAY_FOR(pmod->imports, u) { + if (pmod->imports[u].prefix == prefix_dict) { + /* import module prefix */ + return pmod->imports[u].module; + } + } + + /* prefix module not found */ + LOGVAL(ctx, LYVE_REFERENCE, "Invalid absolute-schema-nodeid nametest - prefix \"%s\" not defined in module \"%s\".", + prefix_dict, LYSP_MODULE_NAME(pmod)); + return NULL; +} + +/** + * @brief Check the syntax of a node-id and collect all the referenced modules. + * + * @param[in] ctx Compile context. + * @param[in] str Node-id to check. + * @param[in] abs Whether @p str must be absolute or relative. + * @param[in,out] mod_set Set to add referenced modules into. + * @param[out] nodeid Optional compiled node-id. + * @param[out] target_mod Optional target module of the node-id. + * @return LY_ERR value. + */ +static LY_ERR +lys_nodeid_mod_check(struct lysc_ctx *ctx, const char *str, ly_bool abs, struct ly_set *mod_set, + struct lysc_nodeid **nodeid, struct lys_module **target_mod) +{ + LY_ERR ret = LY_SUCCESS; + struct lyxp_expr *e = NULL; + struct lysc_nodeid *ni = NULL; + struct lys_module *tmod = NULL, *mod; + const char *nodeid_type = abs ? "absolute-schema-nodeid" : "descendant-schema-nodeid"; + uint32_t i; + + /* parse */ + ret = lyxp_expr_parse(ctx->ctx, str, strlen(str), 0, &e); + if (ret) { + LOGVAL(ctx->ctx, LYVE_SYNTAX_YANG, "Invalid %s value \"%s\" - invalid syntax.", nodeid_type, str); + ret = LY_EVALID; + goto cleanup; + } + + if (abs) { + /* absolute schema nodeid */ + i = 0; + } else { + /* descendant schema nodeid */ + if (e->tokens[0] != LYXP_TOKEN_NAMETEST) { + LOGVAL(ctx->ctx, LYVE_REFERENCE, "Invalid %s value \"%s\" - name test expected instead of \"%.*s\".", + nodeid_type, str, (int)e->tok_len[0], e->expr + e->tok_pos[0]); + ret = LY_EVALID; + goto cleanup; + } + i = 1; + } + + /* check all the tokens */ + for ( ; i < e->used; i += 2) { + if (e->tokens[i] != LYXP_TOKEN_OPER_PATH) { + LOGVAL(ctx->ctx, LYVE_REFERENCE, "Invalid %s value \"%s\" - \"/\" expected instead of \"%.*s\".", + nodeid_type, str, (int)e->tok_len[i], e->expr + e->tok_pos[i]); + ret = LY_EVALID; + goto cleanup; + } else if (e->used == i + 1) { + LOGVAL(ctx->ctx, LYVE_REFERENCE, + "Invalid %s value \"%s\" - unexpected end of expression.", nodeid_type, e->expr); + ret = LY_EVALID; + goto cleanup; + } else if (e->tokens[i + 1] != LYXP_TOKEN_NAMETEST) { + LOGVAL(ctx->ctx, LYVE_REFERENCE, "Invalid %s value \"%s\" - name test expected instead of \"%.*s\".", + nodeid_type, str, (int)e->tok_len[i + 1], e->expr + e->tok_pos[i + 1]); + ret = LY_EVALID; + goto cleanup; + } + } + + if (abs || nodeid) { + /* compile into nodeid, only if needed */ + LY_CHECK_GOTO(ret = lys_precompile_nodeid(ctx->ctx, str, &ni), cleanup); + } + + if (abs) { + for (i = 0; i < ni->count; ++i) { + mod = (struct lys_module *)lys_schema_node_get_module(ctx->ctx, ni->prefix[i], ctx->pmod); + LY_CHECK_ERR_GOTO(!mod, ret = LY_EVALID, cleanup); + + /* only keep the first module */ + if (!tmod) { + tmod = mod; + } + + /* store the referenced module */ + LY_CHECK_GOTO(ret = ly_set_add(mod_set, mod, 0, NULL), cleanup); + } + } + + if (nodeid) { + *nodeid = ni; + ni = NULL; + } + if (target_mod) { + *target_mod = tmod; + } + +cleanup: + lyxp_expr_free(ctx->ctx, e); + lysc_nodeid_free(ctx->ctx, ni); + return ret; +} + +/** + * @brief Check whether 2 schema nodeids match. + * + * @param[in] ctx libyang context. + * @param[in] nodeid1 First schema nodeid. + * @param[in] nodeid1_pmod Module of @p nodeid1 nodes without any prefix. + * @param[in] nodeid2 Second schema nodeid. + * @param[in] nodeid2_pmod Module of @p nodeid2 nodes without any prefix. + * @return Whether the schema nodeids match or not. + */ +static ly_bool +lys_abs_schema_nodeid_match(const struct ly_ctx *ctx, const struct lysc_nodeid *nodeid1, const struct lysp_module *nodeid1_pmod, + const struct lysc_nodeid *nodeid2, const struct lysp_module *nodeid2_pmod) +{ + uint32_t i; + const struct lys_module *mod1, *mod2; + + if (nodeid1->count != nodeid2->count) { + return 0; + } + + for (i = 0; i < nodeid1->count; ++i) { + /* check modules of all the nodes in the node ID */ + mod1 = lys_schema_node_get_module(ctx, nodeid1->prefix[i], nodeid1_pmod); + assert(mod1); + mod2 = lys_schema_node_get_module(ctx, nodeid2->prefix[i], nodeid2_pmod); + assert(mod2); + + /* compare modules */ + if (mod1 != mod2) { + return 0; + } + + /* compare names, both in the dictionary */ + if (nodeid1->name[i] != nodeid2->name[i]) { + return 0; + } + } + + return 1; +} + +LY_ERR +lys_precompile_uses_augments_refines(struct lysc_ctx *ctx, struct lysp_node_uses *uses_p, const struct lysc_node *ctx_node) +{ + LY_ERR ret = LY_SUCCESS; + struct lysc_nodeid *nodeid = NULL; + struct lysc_augment *aug; + struct lysp_node_augment *aug_p; + struct lysc_refine *rfn; + struct lysp_refine **new_rfn; + LY_ARRAY_COUNT_TYPE u; + uint32_t i; + struct ly_set mod_set = {0}; + + LY_LIST_FOR(uses_p->augments, aug_p) { + lysc_update_path(ctx, NULL, "{augment}"); + lysc_update_path(ctx, NULL, aug_p->nodeid); + + /* parse the nodeid */ + LY_CHECK_GOTO(ret = lys_nodeid_mod_check(ctx, aug_p->nodeid, 0, &mod_set, &nodeid, NULL), cleanup); + + /* allocate new compiled augment and store it in the set */ + aug = calloc(1, sizeof *aug); + LY_CHECK_ERR_GOTO(!aug, LOGMEM(ctx->ctx); ret = LY_EMEM, cleanup); + LY_CHECK_GOTO(ret = ly_set_add(&ctx->uses_augs, aug, 1, NULL), cleanup); + + aug->nodeid = nodeid; + nodeid = NULL; + aug->aug_pmod = ctx->pmod; + aug->nodeid_ctx_node = ctx_node; + aug->aug_p = aug_p; + + lysc_update_path(ctx, NULL, NULL); + lysc_update_path(ctx, NULL, NULL); + } + + LY_ARRAY_FOR(uses_p->refines, u) { + lysc_update_path(ctx, NULL, "{refine}"); + lysc_update_path(ctx, NULL, uses_p->refines[u].nodeid); + + /* parse the nodeid */ + LY_CHECK_GOTO(ret = lys_nodeid_mod_check(ctx, uses_p->refines[u].nodeid, 0, &mod_set, &nodeid, NULL), cleanup); + + /* try to find the node in already compiled refines */ + rfn = NULL; + for (i = 0; i < ctx->uses_rfns.count; ++i) { + if (lys_abs_schema_nodeid_match(ctx->ctx, nodeid, ctx->pmod, ((struct lysc_refine *)ctx->uses_rfns.objs[i])->nodeid, + ctx->pmod)) { + rfn = ctx->uses_rfns.objs[i]; + break; + } + } + + if (!rfn) { + /* allocate new compiled refine */ + rfn = calloc(1, sizeof *rfn); + LY_CHECK_ERR_GOTO(!rfn, LOGMEM(ctx->ctx); ret = LY_EMEM, cleanup); + LY_CHECK_GOTO(ret = ly_set_add(&ctx->uses_rfns, rfn, 1, NULL), cleanup); + + rfn->nodeid = nodeid; + nodeid = NULL; + rfn->nodeid_pmod = ctx->cur_mod->parsed; + rfn->nodeid_ctx_node = ctx_node; + rfn->uses_p = uses_p; + } else { + /* just free nodeid */ + lysc_nodeid_free(ctx->ctx, nodeid); + nodeid = NULL; + } + + /* add new parsed refine structure */ + LY_ARRAY_NEW_GOTO(ctx->ctx, rfn->rfns, new_rfn, ret, cleanup); + *new_rfn = &uses_p->refines[u]; + + lysc_update_path(ctx, NULL, NULL); + lysc_update_path(ctx, NULL, NULL); + } + +cleanup: + if (ret) { + lysc_update_path(ctx, NULL, NULL); + lysc_update_path(ctx, NULL, NULL); + } + /* should include only this module, will fail later if not */ + ly_set_erase(&mod_set, NULL); + lysc_nodeid_free(ctx->ctx, nodeid); + return ret; +} + +/** + * @brief Duplicate parsed extension children, recursively. + * + * @param[in] ctx Context. + * @param[in] orig_child First original child to duplicate. + * @param[in,out] child Duplicated children to add to. + * @return LY_ERR value. + */ +static LY_ERR +lysp_ext_children_dup(const struct ly_ctx *ctx, const struct lysp_stmt *orig_child, struct lysp_stmt **child) +{ + struct lysp_stmt *ch = NULL; + + assert(!*child); + + LY_LIST_FOR(orig_child, orig_child) { + /* new child */ + if (!*child) { + *child = ch = calloc(1, sizeof *ch); + LY_CHECK_ERR_RET(!ch, LOGMEM(ctx), LY_EMEM); + } else { + ch->next = calloc(1, sizeof *ch); + LY_CHECK_ERR_RET(!ch->next, LOGMEM(ctx), LY_EMEM); + ch = ch->next; + } + + /* fill */ + DUP_STRING_RET(ctx, orig_child->stmt, ch->stmt); + ch->flags = orig_child->flags; + DUP_STRING_RET(ctx, orig_child->arg, ch->arg); + ch->format = orig_child->format; + LY_CHECK_RET(ly_dup_prefix_data(ctx, orig_child->format, orig_child->prefix_data, &(ch->prefix_data))); + ch->kw = orig_child->kw; + + /* recursive children */ + LY_CHECK_RET(lysp_ext_children_dup(ctx, orig_child->child, &ch->child)); + } + + return LY_SUCCESS; +} + +/** + * @brief Duplicate parsed extension instance. + * + * @param[in] ctx Context. + * @param[in] pmod Current parsed module. + * @param[in] parent Parent of the duplicated ext instance. + * @param[in] parent_stmt Parent statement of the duplicated ext instance (should be @p parent). + * @param[out] ext Duplicated ext instance to fill. + * @return LY_ERR value. + */ +static LY_ERR +lysp_ext_dup(const struct ly_ctx *ctx, const struct lysp_module *pmod, void *parent, enum ly_stmt parent_stmt, + const struct lysp_ext_instance *orig_ext, struct lysp_ext_instance *ext) +{ + LY_ERR ret = LY_SUCCESS; + struct ly_set pmods = {0}; + struct lysp_ctx pctx = {.parsed_mods = &pmods}; + + DUP_STRING_GOTO(ctx, orig_ext->name, ext->name, ret, cleanup); + DUP_STRING_GOTO(ctx, orig_ext->argument, ext->argument, ret, cleanup); + ext->format = orig_ext->format; + LY_CHECK_GOTO(ret = ly_dup_prefix_data(ctx, orig_ext->format, orig_ext->prefix_data, &ext->prefix_data), cleanup); + ext->def = orig_ext->def; + + ext->parent = parent; + ext->parent_stmt = parent_stmt; + ext->parent_stmt_index = orig_ext->parent_stmt_index; + ext->flags = orig_ext->flags; + ext->record = orig_ext->record; + + LY_CHECK_GOTO(ret = lysp_ext_children_dup(ctx, orig_ext->child, &ext->child), cleanup); + if (ext->record && ext->record->plugin.parse) { + /* parse again */ + LY_CHECK_GOTO(ret = ly_set_add(&pmods, pmod, 1, NULL), cleanup); + LY_CHECK_GOTO(ret = ext->record->plugin.parse(&pctx, ext), cleanup); + } + +cleanup: + ly_set_erase(&pmods, NULL); + return ret; +} + +static LY_ERR +lysp_restr_dup(const struct ly_ctx *ctx, const struct lysp_module *pmod, const struct lysp_restr *orig_restr, + struct lysp_restr *restr) +{ + LY_ERR ret = LY_SUCCESS; + + if (orig_restr) { + DUP_STRING(ctx, orig_restr->arg.str, restr->arg.str, ret); + restr->arg.mod = orig_restr->arg.mod; + DUP_STRING(ctx, orig_restr->emsg, restr->emsg, ret); + DUP_STRING(ctx, orig_restr->eapptag, restr->eapptag, ret); + DUP_STRING(ctx, orig_restr->dsc, restr->dsc, ret); + DUP_STRING(ctx, orig_restr->ref, restr->ref, ret); + DUP_EXTS(ctx, pmod, restr, LY_STMT_MUST, orig_restr->exts, restr->exts, lysp_ext_dup); + } + + return ret; +} + +static LY_ERR +lysp_string_dup(const struct ly_ctx *ctx, const char **orig_str, const char **str) +{ + LY_ERR ret = LY_SUCCESS; + + DUP_STRING(ctx, *orig_str, *str, ret); + + return ret; +} + +LY_ERR +lysp_qname_dup(const struct ly_ctx *ctx, const struct lysp_qname *orig_qname, struct lysp_qname *qname) +{ + LY_ERR ret = LY_SUCCESS; + + if (!orig_qname->str) { + return LY_SUCCESS; + } + + DUP_STRING(ctx, orig_qname->str, qname->str, ret); + assert(orig_qname->mod); + qname->mod = orig_qname->mod; + + return ret; +} + +static LY_ERR +lysp_type_enum_dup(const struct ly_ctx *ctx, const struct lysp_module *pmod, const struct lysp_type_enum *orig_enm, + struct lysp_type_enum *enm) +{ + LY_ERR ret = LY_SUCCESS; + + DUP_STRING(ctx, orig_enm->name, enm->name, ret); + DUP_STRING(ctx, orig_enm->dsc, enm->dsc, ret); + DUP_STRING(ctx, orig_enm->ref, enm->ref, ret); + enm->value = orig_enm->value; + DUP_ARRAY(ctx, orig_enm->iffeatures, enm->iffeatures, lysp_qname_dup); + DUP_EXTS(ctx, pmod, enm, LY_STMT_ENUM, orig_enm->exts, enm->exts, lysp_ext_dup); + enm->flags = orig_enm->flags; + + return ret; +} + +static LY_ERR +lysp_type_dup(const struct ly_ctx *ctx, const struct lysp_module *pmod, const struct lysp_type *orig_type, + struct lysp_type *type) +{ + LY_ERR ret = LY_SUCCESS; + + /* array macros read previous data so we must zero it */ + memset(type, 0, sizeof *type); + + DUP_STRING_GOTO(ctx, orig_type->name, type->name, ret, done); + + if (orig_type->range) { + type->range = calloc(1, sizeof *type->range); + LY_CHECK_ERR_RET(!type->range, LOGMEM(ctx), LY_EMEM); + LY_CHECK_RET(lysp_restr_dup(ctx, pmod, orig_type->range, type->range)); + } + + if (orig_type->length) { + type->length = calloc(1, sizeof *type->length); + LY_CHECK_ERR_RET(!type->length, LOGMEM(ctx), LY_EMEM); + LY_CHECK_RET(lysp_restr_dup(ctx, pmod, orig_type->length, type->length)); + } + + DUP_ARRAY2(ctx, pmod, orig_type->patterns, type->patterns, lysp_restr_dup); + DUP_ARRAY2(ctx, pmod, orig_type->enums, type->enums, lysp_type_enum_dup); + DUP_ARRAY2(ctx, pmod, orig_type->bits, type->bits, lysp_type_enum_dup); + LY_CHECK_GOTO(ret = lyxp_expr_dup(ctx, orig_type->path, 0, 0, &type->path), done); + DUP_ARRAY(ctx, orig_type->bases, type->bases, lysp_string_dup); + DUP_ARRAY2(ctx, pmod, orig_type->types, type->types, lysp_type_dup); + DUP_EXTS(ctx, pmod, type, LY_STMT_TYPE, orig_type->exts, type->exts, lysp_ext_dup); + + type->pmod = orig_type->pmod; + type->compiled = orig_type->compiled; + + type->fraction_digits = orig_type->fraction_digits; + type->require_instance = orig_type->require_instance; + type->flags = orig_type->flags; + +done: + return ret; +} + +static LY_ERR +lysp_when_dup(const struct ly_ctx *ctx, const struct lysp_module *pmod, struct lysp_when *when, + const struct lysp_when *orig_when) +{ + LY_ERR ret = LY_SUCCESS; + + DUP_STRING(ctx, orig_when->cond, when->cond, ret); + DUP_STRING(ctx, orig_when->dsc, when->dsc, ret); + DUP_STRING(ctx, orig_when->ref, when->ref, ret); + DUP_EXTS(ctx, pmod, when, LY_STMT_WHEN, orig_when->exts, when->exts, lysp_ext_dup); + + return ret; +} + +static LY_ERR +lysp_node_common_dup(const struct ly_ctx *ctx, const struct lysp_module *pmod, struct lysp_node *node, + const struct lysp_node *orig) +{ + LY_ERR ret = LY_SUCCESS; + + node->parent = NULL; + node->nodetype = orig->nodetype; + node->flags = orig->flags; + node->next = NULL; + DUP_STRING(ctx, orig->name, node->name, ret); + DUP_STRING(ctx, orig->dsc, node->dsc, ret); + DUP_STRING(ctx, orig->ref, node->ref, ret); + DUP_ARRAY(ctx, orig->iffeatures, node->iffeatures, lysp_qname_dup); + DUP_EXTS(ctx, pmod, node, lyplg_ext_nodetype2stmt(node->nodetype), orig->exts, node->exts, lysp_ext_dup); + + return ret; +} + +#define DUP_PWHEN(CTX, PMOD, ORIG, NEW) \ + if (ORIG) { \ + NEW = calloc(1, sizeof *NEW); \ + LY_CHECK_ERR_RET(!NEW, LOGMEM(CTX), LY_EMEM); \ + LY_CHECK_RET(lysp_when_dup(CTX, PMOD, NEW, ORIG)); \ + } + +static LY_ERR +lysp_node_dup(const struct ly_ctx *ctx, const struct lysp_module *pmod, struct lysp_node *node, + const struct lysp_node *orig) +{ + LY_ERR ret = LY_SUCCESS; + struct lysp_node_container *cont; + const struct lysp_node_container *orig_cont; + struct lysp_node_leaf *leaf; + const struct lysp_node_leaf *orig_leaf; + struct lysp_node_leaflist *llist; + const struct lysp_node_leaflist *orig_llist; + struct lysp_node_list *list; + const struct lysp_node_list *orig_list; + struct lysp_node_choice *choice; + const struct lysp_node_choice *orig_choice; + struct lysp_node_case *cas; + const struct lysp_node_case *orig_cas; + struct lysp_node_anydata *any; + const struct lysp_node_anydata *orig_any; + struct lysp_node_action *action; + const struct lysp_node_action *orig_action; + struct lysp_node_action_inout *action_inout; + const struct lysp_node_action_inout *orig_action_inout; + struct lysp_node_notif *notif; + const struct lysp_node_notif *orig_notif; + + assert(orig->nodetype & (LYS_CONTAINER | LYS_LEAF | LYS_LEAFLIST | LYS_LIST | LYS_CHOICE | LYS_CASE | LYS_ANYDATA | + LYS_RPC | LYS_ACTION | LYS_NOTIF)); + + /* common part */ + LY_CHECK_RET(lysp_node_common_dup(ctx, pmod, node, orig)); + + /* specific part */ + switch (node->nodetype) { + case LYS_CONTAINER: + cont = (struct lysp_node_container *)node; + orig_cont = (const struct lysp_node_container *)orig; + + DUP_PWHEN(ctx, pmod, orig_cont->when, cont->when); + DUP_ARRAY2(ctx, pmod, orig_cont->musts, cont->musts, lysp_restr_dup); + DUP_STRING(ctx, orig_cont->presence, cont->presence, ret); + /* we do not need the rest */ + break; + case LYS_LEAF: + leaf = (struct lysp_node_leaf *)node; + orig_leaf = (const struct lysp_node_leaf *)orig; + + DUP_PWHEN(ctx, pmod, orig_leaf->when, leaf->when); + DUP_ARRAY2(ctx, pmod, orig_leaf->musts, leaf->musts, lysp_restr_dup); + LY_CHECK_RET(lysp_type_dup(ctx, pmod, &orig_leaf->type, &leaf->type)); + DUP_STRING(ctx, orig_leaf->units, leaf->units, ret); + LY_CHECK_RET(lysp_qname_dup(ctx, &orig_leaf->dflt, &leaf->dflt)); + break; + case LYS_LEAFLIST: + llist = (struct lysp_node_leaflist *)node; + orig_llist = (const struct lysp_node_leaflist *)orig; + + DUP_PWHEN(ctx, pmod, orig_llist->when, llist->when); + DUP_ARRAY2(ctx, pmod, orig_llist->musts, llist->musts, lysp_restr_dup); + LY_CHECK_RET(lysp_type_dup(ctx, pmod, &orig_llist->type, &llist->type)); + DUP_STRING(ctx, orig_llist->units, llist->units, ret); + DUP_ARRAY(ctx, orig_llist->dflts, llist->dflts, lysp_qname_dup); + llist->min = orig_llist->min; + llist->max = orig_llist->max; + break; + case LYS_LIST: + list = (struct lysp_node_list *)node; + orig_list = (const struct lysp_node_list *)orig; + + DUP_PWHEN(ctx, pmod, orig_list->when, list->when); + DUP_ARRAY2(ctx, pmod, orig_list->musts, list->musts, lysp_restr_dup); + DUP_STRING(ctx, orig_list->key, list->key, ret); + /* we do not need these arrays */ + DUP_ARRAY(ctx, orig_list->uniques, list->uniques, lysp_qname_dup); + list->min = orig_list->min; + list->max = orig_list->max; + break; + case LYS_CHOICE: + choice = (struct lysp_node_choice *)node; + orig_choice = (const struct lysp_node_choice *)orig; + + DUP_PWHEN(ctx, pmod, orig_choice->when, choice->when); + /* we do not need children */ + LY_CHECK_RET(lysp_qname_dup(ctx, &orig_choice->dflt, &choice->dflt)); + break; + case LYS_CASE: + cas = (struct lysp_node_case *)node; + orig_cas = (const struct lysp_node_case *)orig; + + DUP_PWHEN(ctx, pmod, orig_cas->when, cas->when); + /* we do not need children */ + break; + case LYS_ANYDATA: + case LYS_ANYXML: + any = (struct lysp_node_anydata *)node; + orig_any = (const struct lysp_node_anydata *)orig; + + DUP_PWHEN(ctx, pmod, orig_any->when, any->when); + DUP_ARRAY2(ctx, pmod, orig_any->musts, any->musts, lysp_restr_dup); + break; + case LYS_RPC: + case LYS_ACTION: + action = (struct lysp_node_action *)node; + orig_action = (const struct lysp_node_action *)orig; + + action->input.nodetype = orig_action->input.nodetype; + action->output.nodetype = orig_action->output.nodetype; + /* we do not need the rest */ + break; + case LYS_INPUT: + case LYS_OUTPUT: + action_inout = (struct lysp_node_action_inout *)node; + orig_action_inout = (const struct lysp_node_action_inout *)orig; + + DUP_ARRAY2(ctx, pmod, orig_action_inout->musts, action_inout->musts, lysp_restr_dup); + /* we do not need the rest */ + break; + case LYS_NOTIF: + notif = (struct lysp_node_notif *)node; + orig_notif = (const struct lysp_node_notif *)orig; + + DUP_ARRAY2(ctx, pmod, orig_notif->musts, notif->musts, lysp_restr_dup); + /* we do not need the rest */ + break; + default: + LOGINT_RET(ctx); + } + + return ret; +} + +/** + * @brief Duplicate a single parsed node. Only attributes that are used in compilation are copied. + * + * @param[in] ctx libyang context. + * @param[in] pmod Current parsed module. + * @param[in] pnode Node to duplicate. + * @param[in] with_links Whether to also copy any links (child, parent pointers). + * @param[out] dup_p Duplicated parsed node. + * @return LY_ERR value. + */ +static LY_ERR +lysp_dup_single(struct lysc_ctx *cctx, const struct lysp_node *pnode, ly_bool with_links, struct lysp_node **dup_p) +{ + LY_ERR ret = LY_SUCCESS; + struct lysp_node *dup = NULL; + + if (!pnode) { + *dup_p = NULL; + return LY_SUCCESS; + } + + switch (pnode->nodetype) { + case LYS_CONTAINER: + dup = calloc(1, sizeof(struct lysp_node_container)); + break; + case LYS_LEAF: + dup = calloc(1, sizeof(struct lysp_node_leaf)); + break; + case LYS_LEAFLIST: + dup = calloc(1, sizeof(struct lysp_node_leaflist)); + break; + case LYS_LIST: + dup = calloc(1, sizeof(struct lysp_node_list)); + break; + case LYS_CHOICE: + dup = calloc(1, sizeof(struct lysp_node_choice)); + break; + case LYS_CASE: + dup = calloc(1, sizeof(struct lysp_node_case)); + break; + case LYS_ANYDATA: + case LYS_ANYXML: + dup = calloc(1, sizeof(struct lysp_node_anydata)); + break; + case LYS_INPUT: + case LYS_OUTPUT: + dup = calloc(1, sizeof(struct lysp_node_action_inout)); + break; + case LYS_ACTION: + case LYS_RPC: + dup = calloc(1, sizeof(struct lysp_node_action)); + break; + case LYS_NOTIF: + dup = calloc(1, sizeof(struct lysp_node_notif)); + break; + default: + LOGINT_RET(cctx->ctx); + } + LY_CHECK_ERR_GOTO(!dup, LOGMEM(cctx->ctx); ret = LY_EMEM, cleanup); + LY_CHECK_GOTO(ret = lysp_node_dup(cctx->ctx, cctx->pmod, dup, pnode), cleanup); + + if (with_links) { + /* copy also parent, child, action, and notification pointers */ + dup->parent = pnode->parent; + switch (pnode->nodetype) { + case LYS_CONTAINER: + ((struct lysp_node_container *)dup)->child = ((struct lysp_node_container *)pnode)->child; + ((struct lysp_node_container *)dup)->actions = ((struct lysp_node_container *)pnode)->actions; + ((struct lysp_node_container *)dup)->notifs = ((struct lysp_node_container *)pnode)->notifs; + break; + case LYS_LIST: + ((struct lysp_node_list *)dup)->child = ((struct lysp_node_list *)pnode)->child; + ((struct lysp_node_list *)dup)->actions = ((struct lysp_node_list *)pnode)->actions; + ((struct lysp_node_list *)dup)->notifs = ((struct lysp_node_list *)pnode)->notifs; + break; + case LYS_CHOICE: + ((struct lysp_node_choice *)dup)->child = ((struct lysp_node_choice *)pnode)->child; + break; + case LYS_CASE: + ((struct lysp_node_case *)dup)->child = ((struct lysp_node_case *)pnode)->child; + break; + default: + break; + } + } + +cleanup: + if (ret) { + lysp_dev_node_free(cctx, dup); + } else { + *dup_p = dup; + } + return ret; +} + +#define AMEND_WRONG_NODETYPE(AMEND_STR, OP_STR, PROPERTY) \ + LOGVAL(ctx->ctx, LYVE_REFERENCE, "Invalid %s of %s node - it is not possible to %s \"%s\" property.", \ + AMEND_STR, lys_nodetype2str(target->nodetype), OP_STR, PROPERTY);\ + ret = LY_EVALID; \ + goto cleanup; + +#define AMEND_CHECK_CARDINALITY(ARRAY, MAX, AMEND_STR, PROPERTY) \ + if (LY_ARRAY_COUNT(ARRAY) > MAX) { \ + LOGVAL(ctx->ctx, LYVE_SEMANTICS, "Invalid %s of %s with too many (%"LY_PRI_ARRAY_COUNT_TYPE") %s properties.", \ + AMEND_STR, lys_nodetype2str(target->nodetype), LY_ARRAY_COUNT(ARRAY), PROPERTY); \ + ret = LY_EVALID; \ + goto cleanup; \ + } + +/** + * @brief Apply refine. + * + * @param[in] ctx Compile context. + * @param[in] rfn Refine to apply. + * @param[in] rfn_pmod Local module fo the refine. + * @param[in,out] target Refine target. + * @return LY_ERR value. + */ +static LY_ERR +lys_apply_refine(struct lysc_ctx *ctx, struct lysp_refine *rfn, const struct lysp_module *rfn_pmod, struct lysp_node *target) +{ + LY_ERR ret = LY_SUCCESS; + struct lys_module *orig_mod = ctx->cur_mod; + struct lysp_module *orig_pmod = ctx->pmod; + LY_ARRAY_COUNT_TYPE u; + struct lysp_qname *qname; + struct lysp_restr **musts, *must; + uint32_t *num; + + /* use module from the refine */ + ctx->cur_mod = rfn_pmod->mod; + ctx->pmod = (struct lysp_module *)rfn_pmod; + + /* keep the current path and add to it */ + lysc_update_path(ctx, NULL, "{refine}"); + lysc_update_path(ctx, NULL, rfn->nodeid); + + /* default value */ + if (rfn->dflts) { + switch (target->nodetype) { + case LYS_LEAF: + AMEND_CHECK_CARDINALITY(rfn->dflts, 1, "refine", "default"); + + lydict_remove(ctx->ctx, ((struct lysp_node_leaf *)target)->dflt.str); + LY_CHECK_GOTO(ret = lysp_qname_dup(ctx->ctx, &rfn->dflts[0], &((struct lysp_node_leaf *)target)->dflt), cleanup); + break; + case LYS_LEAFLIST: + if (rfn->dflts[0].mod->version < LYS_VERSION_1_1) { + LOGVAL(ctx->ctx, LYVE_SEMANTICS, + "Invalid refine of default in leaf-list - the default statement is allowed only in YANG 1.1 modules."); + ret = LY_EVALID; + goto cleanup; + } + + FREE_ARRAY(ctx->ctx, ((struct lysp_node_leaflist *)target)->dflts, lysp_qname_free); + ((struct lysp_node_leaflist *)target)->dflts = NULL; + LY_ARRAY_FOR(rfn->dflts, u) { + LY_ARRAY_NEW_GOTO(ctx->ctx, ((struct lysp_node_leaflist *)target)->dflts, qname, ret, cleanup); + LY_CHECK_GOTO(ret = lysp_qname_dup(ctx->ctx, &rfn->dflts[u], qname), cleanup); + } + break; + case LYS_CHOICE: + AMEND_CHECK_CARDINALITY(rfn->dflts, 1, "refine", "default"); + + lydict_remove(ctx->ctx, ((struct lysp_node_choice *)target)->dflt.str); + LY_CHECK_GOTO(ret = lysp_qname_dup(ctx->ctx, &rfn->dflts[0], &((struct lysp_node_choice *)target)->dflt), cleanup); + break; + default: + AMEND_WRONG_NODETYPE("refine", "replace", "default"); + } + } + + /* description */ + if (rfn->dsc) { + lydict_remove(ctx->ctx, target->dsc); + DUP_STRING_GOTO(ctx->ctx, rfn->dsc, target->dsc, ret, cleanup); + } + + /* reference */ + if (rfn->ref) { + lydict_remove(ctx->ctx, target->ref); + DUP_STRING_GOTO(ctx->ctx, rfn->ref, target->ref, ret, cleanup); + } + + /* config */ + if (rfn->flags & LYS_CONFIG_MASK) { + if (ctx->compile_opts & LYS_COMPILE_NO_CONFIG) { + LOGWRN(ctx->ctx, "Refining config inside %s has no effect (%s).", + (ctx->compile_opts & (LYS_IS_INPUT | LYS_IS_OUTPUT)) ? "RPC/action" : + ctx->compile_opts & LYS_IS_NOTIF ? "notification" : "a subtree ignoring config", ctx->path); + } else { + target->flags &= ~LYS_CONFIG_MASK; + target->flags |= rfn->flags & LYS_CONFIG_MASK; + } + } + + /* mandatory */ + if (rfn->flags & LYS_MAND_MASK) { + switch (target->nodetype) { + case LYS_LEAF: + case LYS_CHOICE: + case LYS_ANYDATA: + case LYS_ANYXML: + break; + default: + AMEND_WRONG_NODETYPE("refine", "replace", "mandatory"); + } + + target->flags &= ~LYS_MAND_MASK; + target->flags |= rfn->flags & LYS_MAND_MASK; + } + + /* presence */ + if (rfn->presence) { + if (target->nodetype != LYS_CONTAINER) { + AMEND_WRONG_NODETYPE("refine", "replace", "presence"); + } + + lydict_remove(ctx->ctx, ((struct lysp_node_container *)target)->presence); + DUP_STRING_GOTO(ctx->ctx, rfn->presence, ((struct lysp_node_container *)target)->presence, ret, cleanup); + } + + /* must */ + if (rfn->musts) { + switch (target->nodetype) { + case LYS_CONTAINER: + case LYS_LIST: + case LYS_LEAF: + case LYS_LEAFLIST: + case LYS_ANYDATA: + case LYS_ANYXML: + musts = &((struct lysp_node_container *)target)->musts; + break; + default: + AMEND_WRONG_NODETYPE("refine", "add", "must"); + } + + LY_ARRAY_FOR(rfn->musts, u) { + LY_ARRAY_NEW_GOTO(ctx->ctx, *musts, must, ret, cleanup); + LY_CHECK_GOTO(ret = lysp_restr_dup(ctx->ctx, rfn_pmod, &rfn->musts[u], must), cleanup); + } + } + + /* min-elements */ + if (rfn->flags & LYS_SET_MIN) { + switch (target->nodetype) { + case LYS_LEAFLIST: + num = &((struct lysp_node_leaflist *)target)->min; + break; + case LYS_LIST: + num = &((struct lysp_node_list *)target)->min; + break; + default: + AMEND_WRONG_NODETYPE("refine", "replace", "min-elements"); + } + + *num = rfn->min; + } + + /* max-elements */ + if (rfn->flags & LYS_SET_MAX) { + switch (target->nodetype) { + case LYS_LEAFLIST: + num = &((struct lysp_node_leaflist *)target)->max; + break; + case LYS_LIST: + num = &((struct lysp_node_list *)target)->max; + break; + default: + AMEND_WRONG_NODETYPE("refine", "replace", "max-elements"); + } + + *num = rfn->max; + } + + /* if-feature */ + if (rfn->iffeatures) { + switch (target->nodetype) { + case LYS_LEAF: + case LYS_LEAFLIST: + case LYS_LIST: + case LYS_CONTAINER: + case LYS_CHOICE: + case LYS_CASE: + case LYS_ANYDATA: + case LYS_ANYXML: + break; + default: + AMEND_WRONG_NODETYPE("refine", "add", "if-feature"); + } + + LY_ARRAY_FOR(rfn->iffeatures, u) { + LY_ARRAY_NEW_GOTO(ctx->ctx, target->iffeatures, qname, ret, cleanup); + LY_CHECK_GOTO(ret = lysp_qname_dup(ctx->ctx, &rfn->iffeatures[u], qname), cleanup); + } + } + + /* extension instances */ + DUP_EXTS(ctx->ctx, rfn_pmod, target, lyplg_ext_nodetype2stmt(target->nodetype), rfn->exts, target->exts, lysp_ext_dup); + +cleanup: + ctx->cur_mod = orig_mod; + ctx->pmod = orig_pmod; + + lysc_update_path(ctx, NULL, NULL); + lysc_update_path(ctx, NULL, NULL); + return ret; +} + +/** + * @brief Apply deviate add. + * + * @param[in] ctx Compile context. + * @param[in] d Deviate add to apply. + * @param[in,out] target Deviation target. + * @return LY_ERR value. + */ +static LY_ERR +lys_apply_deviate_add(struct lysc_ctx *ctx, struct lysp_deviate_add *d, struct lysp_node *target) +{ + LY_ERR ret = LY_SUCCESS; + LY_ARRAY_COUNT_TYPE u; + struct lysp_qname *qname; + uint32_t *num; + struct lysp_restr **musts, *must; + +#define DEV_CHECK_NONPRESENCE(TYPE, MEMBER, PROPERTY, VALUEMEMBER) \ + if (((TYPE)target)->MEMBER) { \ + LOGVAL(ctx->ctx, LYVE_REFERENCE, "Invalid deviation adding \"%s\" property which already exists (with value \"%s\").", \ + PROPERTY, ((TYPE)target)->VALUEMEMBER); \ + ret = LY_EVALID; \ + goto cleanup; \ + } + + /* [units-stmt] */ + if (d->units) { + switch (target->nodetype) { + case LYS_LEAF: + case LYS_LEAFLIST: + break; + default: + AMEND_WRONG_NODETYPE("deviation", "add", "units"); + } + + DEV_CHECK_NONPRESENCE(struct lysp_node_leaf *, units, "units", units); + DUP_STRING_GOTO(ctx->ctx, d->units, ((struct lysp_node_leaf *)target)->units, ret, cleanup); + } + + /* *must-stmt */ + if (d->musts) { + musts = lysp_node_musts_p(target); + if (!musts) { + AMEND_WRONG_NODETYPE("deviation", "add", "must"); + } + + LY_ARRAY_FOR(d->musts, u) { + LY_ARRAY_NEW_GOTO(ctx->ctx, *musts, must, ret, cleanup); + LY_CHECK_GOTO(ret = lysp_restr_dup(ctx->ctx, ctx->pmod, &d->musts[u], must), cleanup); + } + } + + /* *unique-stmt */ + if (d->uniques) { + if (target->nodetype != LYS_LIST) { + AMEND_WRONG_NODETYPE("deviation", "add", "unique"); + } + + LY_ARRAY_FOR(d->uniques, u) { + LY_ARRAY_NEW_GOTO(ctx->ctx, ((struct lysp_node_list *)target)->uniques, qname, ret, cleanup); + LY_CHECK_GOTO(ret = lysp_qname_dup(ctx->ctx, &d->uniques[u], qname), cleanup); + } + } + + /* *default-stmt */ + if (d->dflts) { + switch (target->nodetype) { + case LYS_LEAF: + AMEND_CHECK_CARDINALITY(d->dflts, 1, "deviation", "default"); + DEV_CHECK_NONPRESENCE(struct lysp_node_leaf *, dflt.str, "default", dflt.str); + + LY_CHECK_GOTO(ret = lysp_qname_dup(ctx->ctx, &d->dflts[0], &((struct lysp_node_leaf *)target)->dflt), cleanup); + break; + case LYS_LEAFLIST: + LY_ARRAY_FOR(d->dflts, u) { + LY_ARRAY_NEW_GOTO(ctx->ctx, ((struct lysp_node_leaflist *)target)->dflts, qname, ret, cleanup); + LY_CHECK_GOTO(ret = lysp_qname_dup(ctx->ctx, &d->dflts[u], qname), cleanup); + } + break; + case LYS_CHOICE: + AMEND_CHECK_CARDINALITY(d->dflts, 1, "deviation", "default"); + DEV_CHECK_NONPRESENCE(struct lysp_node_choice *, dflt.str, "default", dflt.str); + + LY_CHECK_GOTO(ret = lysp_qname_dup(ctx->ctx, &d->dflts[0], &((struct lysp_node_choice *)target)->dflt), cleanup); + break; + default: + AMEND_WRONG_NODETYPE("deviation", "add", "default"); + } + } + + /* [config-stmt] */ + if (d->flags & LYS_CONFIG_MASK) { + switch (target->nodetype) { + case LYS_CONTAINER: + case LYS_LEAF: + case LYS_LEAFLIST: + case LYS_LIST: + case LYS_CHOICE: + case LYS_ANYDATA: + case LYS_ANYXML: + break; + default: + AMEND_WRONG_NODETYPE("deviation", "add", "config"); + } + + if (target->flags & LYS_CONFIG_MASK) { + LOGVAL(ctx->ctx, LYVE_REFERENCE, + "Invalid deviation adding \"config\" property which already exists (with value \"config %s\").", + target->flags & LYS_CONFIG_W ? "true" : "false"); + ret = LY_EVALID; + goto cleanup; + } + + target->flags |= d->flags & LYS_CONFIG_MASK; + } + + /* [mandatory-stmt] */ + if (d->flags & LYS_MAND_MASK) { + switch (target->nodetype) { + case LYS_LEAF: + case LYS_CHOICE: + case LYS_ANYDATA: + case LYS_ANYXML: + break; + default: + AMEND_WRONG_NODETYPE("deviation", "add", "mandatory"); + } + + if (target->flags & LYS_MAND_MASK) { + LOGVAL(ctx->ctx, LYVE_REFERENCE, + "Invalid deviation adding \"mandatory\" property which already exists (with value \"mandatory %s\").", + target->flags & LYS_MAND_TRUE ? "true" : "false"); + ret = LY_EVALID; + goto cleanup; + } + + target->flags |= d->flags & LYS_MAND_MASK; + } + + /* [min-elements-stmt] */ + if (d->flags & LYS_SET_MIN) { + switch (target->nodetype) { + case LYS_LEAFLIST: + num = &((struct lysp_node_leaflist *)target)->min; + break; + case LYS_LIST: + num = &((struct lysp_node_list *)target)->min; + break; + default: + AMEND_WRONG_NODETYPE("deviation", "add", "min-elements"); + } + + if (target->flags & LYS_SET_MIN) { + LOGVAL(ctx->ctx, LYVE_REFERENCE, + "Invalid deviation adding \"min-elements\" property which already exists (with value \"%" PRIu32 "\").", + *num); + ret = LY_EVALID; + goto cleanup; + } + + *num = d->min; + } + + /* [max-elements-stmt] */ + if (d->flags & LYS_SET_MAX) { + switch (target->nodetype) { + case LYS_LEAFLIST: + num = &((struct lysp_node_leaflist *)target)->max; + break; + case LYS_LIST: + num = &((struct lysp_node_list *)target)->max; + break; + default: + AMEND_WRONG_NODETYPE("deviation", "add", "max-elements"); + } + + if (target->flags & LYS_SET_MAX) { + if (*num) { + LOGVAL(ctx->ctx, LYVE_REFERENCE, + "Invalid deviation adding \"max-elements\" property which already exists (with value \"%" PRIu32 "\").", + *num); + } else { + LOGVAL(ctx->ctx, LYVE_REFERENCE, + "Invalid deviation adding \"max-elements\" property which already exists (with value \"unbounded\")."); + } + ret = LY_EVALID; + goto cleanup; + } + + *num = d->max; + } + +cleanup: + return ret; +} + +/** + * @brief Apply deviate delete. + * + * @param[in] ctx Compile context. + * @param[in] d Deviate delete to apply. + * @param[in,out] target Deviation target. + * @return LY_ERR value. + */ +static LY_ERR +lys_apply_deviate_delete(struct lysc_ctx *ctx, struct lysp_deviate_del *d, struct lysp_node *target) +{ + LY_ERR ret = LY_SUCCESS; + struct lysp_restr **musts; + LY_ARRAY_COUNT_TYPE u, v; + struct lysp_qname **uniques, **dflts; + +#define DEV_DEL_ARRAY(DEV_ARRAY, ORIG_ARRAY, DEV_MEMBER, ORIG_MEMBER, FREE_FUNC, FREE_CTX, PROPERTY) \ + LY_ARRAY_FOR(d->DEV_ARRAY, u) { \ + int found = 0; \ + LY_ARRAY_FOR(ORIG_ARRAY, v) { \ + if (!strcmp(d->DEV_ARRAY[u]DEV_MEMBER, (ORIG_ARRAY)[v]ORIG_MEMBER)) { \ + found = 1; \ + break; \ + } \ + } \ + if (!found) { \ + LOGVAL(ctx->ctx, LYVE_REFERENCE, \ + "Invalid deviation deleting \"%s\" property \"%s\" which does not match any of the target's property values.", \ + PROPERTY, d->DEV_ARRAY[u]DEV_MEMBER); \ + ret = LY_EVALID; \ + goto cleanup; \ + } \ + LY_ARRAY_DECREMENT(ORIG_ARRAY); \ + FREE_FUNC(FREE_CTX, &(ORIG_ARRAY)[v]); \ + if (v < LY_ARRAY_COUNT(ORIG_ARRAY)) { \ + memmove(&(ORIG_ARRAY)[v], &(ORIG_ARRAY)[v + 1], (LY_ARRAY_COUNT(ORIG_ARRAY) - v) * sizeof *(ORIG_ARRAY)); \ + } \ + } \ + if (!LY_ARRAY_COUNT(ORIG_ARRAY)) { \ + LY_ARRAY_FREE(ORIG_ARRAY); \ + ORIG_ARRAY = NULL; \ + } + +#define DEV_CHECK_PRESENCE_VALUE(TYPE, MEMBER, DEVTYPE, PROPERTY, VALUE) \ + if (!((TYPE)target)->MEMBER) { \ + LOGVAL(ctx->ctx, LY_VCODE_DEV_NOT_PRESENT, DEVTYPE, PROPERTY, VALUE); \ + ret = LY_EVALID; \ + goto cleanup; \ + } else if (strcmp(((TYPE)target)->MEMBER, VALUE)) { \ + LOGVAL(ctx->ctx, LYVE_REFERENCE, \ + "Invalid deviation deleting \"%s\" property \"%s\" which does not match the target's property value \"%s\".", \ + PROPERTY, VALUE, ((TYPE)target)->MEMBER); \ + ret = LY_EVALID; \ + goto cleanup; \ + } + + /* [units-stmt] */ + if (d->units) { + switch (target->nodetype) { + case LYS_LEAF: + case LYS_LEAFLIST: + break; + default: + AMEND_WRONG_NODETYPE("deviation", "delete", "units"); + } + + DEV_CHECK_PRESENCE_VALUE(struct lysp_node_leaf *, units, "deleting", "units", d->units); + lydict_remove(ctx->ctx, ((struct lysp_node_leaf *)target)->units); + ((struct lysp_node_leaf *)target)->units = NULL; + } + + /* *must-stmt */ + if (d->musts) { + musts = lysp_node_musts_p(target); + if (!musts) { + AMEND_WRONG_NODETYPE("deviation", "delete", "must"); + } + + DEV_DEL_ARRAY(musts, *musts, .arg.str, .arg.str, lysp_restr_free, &ctx->free_ctx, "must"); + } + + /* *unique-stmt */ + if (d->uniques) { + if (target->nodetype != LYS_LIST) { + AMEND_WRONG_NODETYPE("deviation", "delete", "unique"); + } + + uniques = &((struct lysp_node_list *)target)->uniques; + DEV_DEL_ARRAY(uniques, *uniques, .str, .str, lysp_qname_free, ctx->ctx, "unique"); + } + + /* *default-stmt */ + if (d->dflts) { + switch (target->nodetype) { + case LYS_LEAF: + AMEND_CHECK_CARDINALITY(d->dflts, 1, "deviation", "default"); + DEV_CHECK_PRESENCE_VALUE(struct lysp_node_leaf *, dflt.str, "deleting", "default", d->dflts[0].str); + + lydict_remove(ctx->ctx, ((struct lysp_node_leaf *)target)->dflt.str); + ((struct lysp_node_leaf *)target)->dflt.str = NULL; + break; + case LYS_LEAFLIST: + dflts = &((struct lysp_node_leaflist *)target)->dflts; + DEV_DEL_ARRAY(dflts, *dflts, .str, .str, lysp_qname_free, ctx->ctx, "default"); + break; + case LYS_CHOICE: + AMEND_CHECK_CARDINALITY(d->dflts, 1, "deviation", "default"); + DEV_CHECK_PRESENCE_VALUE(struct lysp_node_choice *, dflt.str, "deleting", "default", d->dflts[0].str); + + lydict_remove(ctx->ctx, ((struct lysp_node_choice *)target)->dflt.str); + ((struct lysp_node_choice *)target)->dflt.str = NULL; + break; + default: + AMEND_WRONG_NODETYPE("deviation", "delete", "default"); + } + } + +cleanup: + return ret; +} + +/** + * @brief Apply deviate replace. + * + * @param[in] ctx Compile context. + * @param[in] d Deviate replace to apply. + * @param[in,out] target Deviation target. + * @return LY_ERR value. + */ +static LY_ERR +lys_apply_deviate_replace(struct lysc_ctx *ctx, struct lysp_deviate_rpl *d, struct lysp_node *target) +{ + LY_ERR ret = LY_SUCCESS; + uint32_t *num; + +#define DEV_CHECK_PRESENCE(TYPE, MEMBER, DEVTYPE, PROPERTY, VALUE) \ + if (!((TYPE)target)->MEMBER) { \ + LOGVAL(ctx->ctx, LY_VCODE_DEV_NOT_PRESENT, DEVTYPE, PROPERTY, VALUE); \ + ret = LY_EVALID; \ + goto cleanup; \ + } + + /* [type-stmt] */ + if (d->type) { + switch (target->nodetype) { + case LYS_LEAF: + case LYS_LEAFLIST: + break; + default: + AMEND_WRONG_NODETYPE("deviation", "replace", "type"); + } + + lysp_type_free(&ctx->free_ctx, &((struct lysp_node_leaf *)target)->type); + lysp_type_dup(ctx->ctx, ctx->pmod, d->type, &((struct lysp_node_leaf *)target)->type); + } + + /* [units-stmt] */ + if (d->units) { + switch (target->nodetype) { + case LYS_LEAF: + case LYS_LEAFLIST: + break; + default: + AMEND_WRONG_NODETYPE("deviation", "replace", "units"); + } + + DEV_CHECK_PRESENCE(struct lysp_node_leaf *, units, "replacing", "units", d->units); + lydict_remove(ctx->ctx, ((struct lysp_node_leaf *)target)->units); + DUP_STRING_GOTO(ctx->ctx, d->units, ((struct lysp_node_leaf *)target)->units, ret, cleanup); + } + + /* [default-stmt] */ + if (d->dflt.str) { + switch (target->nodetype) { + case LYS_LEAF: + DEV_CHECK_PRESENCE(struct lysp_node_leaf *, dflt.str, "replacing", "default", d->dflt.str); + + lydict_remove(ctx->ctx, ((struct lysp_node_leaf *)target)->dflt.str); + LY_CHECK_GOTO(ret = lysp_qname_dup(ctx->ctx, &d->dflt, &((struct lysp_node_leaf *)target)->dflt), cleanup); + break; + case LYS_CHOICE: + DEV_CHECK_PRESENCE(struct lysp_node_choice *, dflt.str, "replacing", "default", d->dflt.str); + + lydict_remove(ctx->ctx, ((struct lysp_node_choice *)target)->dflt.str); + LY_CHECK_GOTO(ret = lysp_qname_dup(ctx->ctx, &d->dflt, &((struct lysp_node_choice *)target)->dflt), cleanup); + break; + default: + AMEND_WRONG_NODETYPE("deviation", "replace", "default"); + } + } + + /* [config-stmt] */ + if (d->flags & LYS_CONFIG_MASK) { + switch (target->nodetype) { + case LYS_CONTAINER: + case LYS_LEAF: + case LYS_LEAFLIST: + case LYS_LIST: + case LYS_CHOICE: + case LYS_ANYDATA: + case LYS_ANYXML: + break; + default: + AMEND_WRONG_NODETYPE("deviation", "replace", "config"); + } + + target->flags &= ~LYS_CONFIG_MASK; + target->flags |= d->flags & LYS_CONFIG_MASK; + } + + /* [mandatory-stmt] */ + if (d->flags & LYS_MAND_MASK) { + switch (target->nodetype) { + case LYS_LEAF: + case LYS_CHOICE: + case LYS_ANYDATA: + case LYS_ANYXML: + break; + default: + AMEND_WRONG_NODETYPE("deviation", "replace", "mandatory"); + } + + target->flags &= ~LYS_MAND_MASK; + target->flags |= d->flags & LYS_MAND_MASK; + } + + /* [min-elements-stmt] */ + if (d->flags & LYS_SET_MIN) { + switch (target->nodetype) { + case LYS_LEAFLIST: + num = &((struct lysp_node_leaflist *)target)->min; + break; + case LYS_LIST: + num = &((struct lysp_node_list *)target)->min; + break; + default: + AMEND_WRONG_NODETYPE("deviation", "replace", "min-elements"); + } + + *num = d->min; + } + + /* [max-elements-stmt] */ + if (d->flags & LYS_SET_MAX) { + switch (target->nodetype) { + case LYS_LEAFLIST: + num = &((struct lysp_node_leaflist *)target)->max; + break; + case LYS_LIST: + num = &((struct lysp_node_list *)target)->max; + break; + default: + AMEND_WRONG_NODETYPE("deviation", "replace", "max-elements"); + } + + *num = d->max; + } + +cleanup: + return ret; +} + +/** + * @brief Apply deviation with all its deviates. + * + * @param[in] ctx Compile context. + * @param[in] dev Deviation to apply. + * @param[in] dev_pmod Local module of the deviation. + * @param[in,out] target Deviation target. + * @return LY_ERR value. + */ +static LY_ERR +lys_apply_deviation(struct lysc_ctx *ctx, struct lysp_deviation *dev, const struct lysp_module *dev_pmod, + struct lysp_node *target) +{ + LY_ERR ret = LY_SUCCESS; + struct lys_module *orig_mod = ctx->cur_mod; + struct lysp_module *orig_pmod = ctx->pmod; + char orig_path[LYSC_CTX_BUFSIZE]; + struct lysp_deviate *d; + + /* clear path and set modules */ + strcpy(orig_path, ctx->path); + ctx->path_len = 1; + ctx->cur_mod = dev_pmod->mod; + ctx->pmod = (struct lysp_module *)dev_pmod; + + /* generate correct path */ + lysc_update_path(ctx, NULL, "{deviation}"); + lysc_update_path(ctx, NULL, dev->nodeid); + + LY_LIST_FOR(dev->deviates, d) { + switch (d->mod) { + case LYS_DEV_ADD: + ret = lys_apply_deviate_add(ctx, (struct lysp_deviate_add *)d, target); + break; + case LYS_DEV_DELETE: + ret = lys_apply_deviate_delete(ctx, (struct lysp_deviate_del *)d, target); + break; + case LYS_DEV_REPLACE: + ret = lys_apply_deviate_replace(ctx, (struct lysp_deviate_rpl *)d, target); + break; + default: + LOGINT(ctx->ctx); + ret = LY_EINT; + } + LY_CHECK_GOTO(ret, cleanup); + } + + /* deviation extension instances */ + DUP_EXTS(ctx->ctx, dev_pmod, target, lyplg_ext_nodetype2stmt(target->nodetype), dev->exts, target->exts, lysp_ext_dup); + +cleanup: + ctx->cur_mod = orig_mod; + ctx->pmod = orig_pmod; + + strcpy(ctx->path, orig_path); + ctx->path_len = strlen(ctx->path); + return ret; +} + +/** + * @brief Check whether a compiled node matches a single schema nodeid name test. + * + * @param[in,out] node Compiled node to consider. On a match it is moved to its parent. + * @param[in] mod Expected module. + * @param[in] name_dict Expected name, in the dictionary. + * @return Whether it is a match or not. + */ +static ly_bool +lysp_schema_nodeid_match_node(const struct lysc_node **node, const struct lys_module *mod, const char *name_dict) +{ + /* compare with the module of the node */ + if ((*node)->module != mod) { + return 0; + } + + /* compare names */ + if ((*node)->name != name_dict) { + return 0; + } + + /* move to next parent */ + *node = (*node)->parent; + + return 1; +} + +/** + * @brief Check whether a compiled ext instance matches a single schema nodeid name test. + * + * @param[in,out] ext Compiled ext instance to consider. On a match it is zeroed to not match again. + * @param[in] mod Expected module. + * @param[in] name Expected name, in the dictionary. + * @return Whether it is a match or not. + */ +static ly_bool +lysp_schema_nodeid_match_ext(const struct lysc_ext_instance **ext, const struct lys_module *mod, const char *name_dict) +{ + /* compare with the module */ + if ((*ext)->module != mod) { + return 0; + } + + /* compare names (argument) */ + if ((*ext)->argument != name_dict) { + return 0; + } + + /* zero */ + *ext = NULL; + + return 1; +} + +/** + * @brief Check whether a node matches specific schema nodeid. + * + * @param[in] nodeid Compiled nodeid to match. + * @param[in] nodeid_pmod Module to use for nodes in @p nodeid without a prefix. + * @param[in] nodeid_ext Extension instance in which @p nodeid is defined, it means it targets an extension instance. + * @param[in] ctx_node Initial context node that should match, only for descendant paths. + * @param[in] parent First compiled parent to consider. If @p pnode is NULL, it is condered the node to be matched. + * @param[in] pnode Parsed node to be matched. May be NULL if the target node was already compiled. + * @param[in] pnode_mod Compiled @p pnode to-be module. + * @param[in] pnode_ext Extension instance in which @p pnode is defined. + * @return Whether it is a match or not. + */ +static ly_bool +lysp_schema_nodeid_match(const struct lysc_nodeid *nodeid, const struct lysp_module *nodeid_pmod, + const struct lysp_ext_instance *nodeid_ext, const struct lysc_node *ctx_node, const struct lysc_node *parent, + const struct lysp_node *pnode, const struct lys_module *pnode_mod, const struct lysc_ext_instance *pnode_ext) +{ + uint32_t i; + const struct lys_module *mod; + + if (nodeid_ext && !pnode_ext) { + /* extension instance augment and standard node, will never match */ + return 0; + } else if (!nodeid_ext && pnode_ext) { + /* standard augment and extension instance node, will never match */ + return 0; + } + + /* compare last node in the node ID */ + i = nodeid->count - 1; + + /* get exp node ID module */ + mod = lys_schema_node_get_module(nodeid_pmod->mod->ctx, nodeid->prefix[i], nodeid_pmod); + assert(mod); + + if (pnode) { + /* compare on the last parsed-only node */ + if ((pnode_mod != mod) || (pnode->name != nodeid->name[i])) { + return 0; + } + } else { + /* using parent directly */ + if (!lysp_schema_nodeid_match_node(&parent, mod, nodeid->name[i])) { + return 0; + } + } + + /* now compare all the compiled parents */ + while (i) { + --i; + + if (!parent && !pnode_ext) { + /* no more parents but path continues */ + return 0; + } + + /* get exp node ID module */ + mod = lys_schema_node_get_module(nodeid_pmod->mod->ctx, nodeid->prefix[i], nodeid_pmod); + assert(mod); + + if (parent) { + /* compare with the parent */ + if (!lysp_schema_nodeid_match_node(&parent, mod, nodeid->name[i])) { + return 0; + } + } else { + /* compare with the ext instance */ + if (!lysp_schema_nodeid_match_ext(&pnode_ext, mod, nodeid->name[i])) { + return 0; + } + } + } + + if (ctx_node && (ctx_node != parent)) { + /* descendant path has not finished in the context node */ + return 0; + } else if (!ctx_node && (parent || pnode_ext)) { + /* some parent/extension was not matched */ + return 0; + } + + return 1; +} + +void +lysc_augment_free(const struct ly_ctx *ctx, struct lysc_augment *aug) +{ + if (!aug) { + return; + } + + lysc_nodeid_free(ctx, aug->nodeid); + free(aug); +} + +void +lysc_deviation_free(const struct ly_ctx *ctx, struct lysc_deviation *dev) +{ + if (!dev) { + return; + } + + lysc_nodeid_free(ctx, dev->nodeid); + LY_ARRAY_FREE(dev->devs); + LY_ARRAY_FREE(dev->dev_pmods); + free(dev); +} + +void +lysc_refine_free(const struct ly_ctx *ctx, struct lysc_refine *rfn) +{ + if (!rfn) { + return; + } + + lysc_nodeid_free(ctx, rfn->nodeid); + LY_ARRAY_FREE(rfn->rfns); + free(rfn); +} + +void +lysp_dev_node_free(struct lysc_ctx *cctx, struct lysp_node *dev_pnode) +{ + if (!dev_pnode) { + return; + } + + switch (dev_pnode->nodetype) { + case LYS_CONTAINER: + ((struct lysp_node_container *)dev_pnode)->child = NULL; + ((struct lysp_node_container *)dev_pnode)->actions = NULL; + ((struct lysp_node_container *)dev_pnode)->notifs = NULL; + break; + case LYS_LIST: + ((struct lysp_node_list *)dev_pnode)->child = NULL; + ((struct lysp_node_list *)dev_pnode)->actions = NULL; + ((struct lysp_node_list *)dev_pnode)->notifs = NULL; + break; + case LYS_CHOICE: + ((struct lysp_node_choice *)dev_pnode)->child = NULL; + break; + case LYS_CASE: + ((struct lysp_node_case *)dev_pnode)->child = NULL; + break; + case LYS_LEAF: + case LYS_LEAFLIST: + case LYS_ANYXML: + case LYS_ANYDATA: + /* no children */ + break; + case LYS_NOTIF: + ((struct lysp_node_notif *)dev_pnode)->child = NULL; + break; + case LYS_RPC: + case LYS_ACTION: + ((struct lysp_node_action *)dev_pnode)->input.child = NULL; + ((struct lysp_node_action *)dev_pnode)->output.child = NULL; + break; + case LYS_INPUT: + case LYS_OUTPUT: + ((struct lysp_node_action_inout *)dev_pnode)->child = NULL; + lysp_node_free(&cctx->free_ctx, dev_pnode); + free(dev_pnode); + return; + default: + LOGINT(cctx->ctx); + return; + } + + lysp_node_free(&cctx->free_ctx, dev_pnode); +} + +LY_ERR +lys_compile_node_deviations_refines(struct lysc_ctx *ctx, const struct lysp_node *pnode, const struct lysc_node *parent, + struct lysp_node **dev_pnode, ly_bool *not_supported) +{ + LY_ERR ret = LY_SUCCESS; + uint32_t i; + LY_ARRAY_COUNT_TYPE u; + struct lysc_refine *rfn; + struct lysc_deviation *dev; + + *dev_pnode = NULL; + *not_supported = 0; + + for (i = 0; i < ctx->uses_rfns.count; ) { + rfn = ctx->uses_rfns.objs[i]; + + if (!lysp_schema_nodeid_match(rfn->nodeid, rfn->nodeid_pmod, NULL, rfn->nodeid_ctx_node, parent, pnode, + ctx->cur_mod, ctx->ext)) { + /* not our target node */ + ++i; + continue; + } + + if (!*dev_pnode) { + /* first refine on this node, create a copy first */ + LY_CHECK_GOTO(ret = lysp_dup_single(ctx, pnode, 1, dev_pnode), cleanup); + } + + /* apply all the refines by changing (the copy of) the parsed node */ + LY_ARRAY_FOR(rfn->rfns, u) { + LY_CHECK_GOTO(ret = lys_apply_refine(ctx, rfn->rfns[u], rfn->nodeid_pmod, *dev_pnode), cleanup); + } + + /* refine was applied, remove it */ + lysc_refine_free(ctx->ctx, rfn); + ly_set_rm_index(&ctx->uses_rfns, i, NULL); + + /* refines use relative paths so more may apply to a single node */ + } + + for (i = 0; i < ctx->devs.count; ++i) { + dev = ctx->devs.objs[i]; + + if (!lysp_schema_nodeid_match(dev->nodeid, dev->dev_pmods[0], NULL, NULL, parent, pnode, ctx->cur_mod, ctx->ext)) { + /* not our target node */ + continue; + } + + if (dev->not_supported) { + /* it is not supported, no more deviations */ + *not_supported = 1; + goto dev_applied; + } + + if (!*dev_pnode) { + /* first deviation on this node, create a copy first */ + LY_CHECK_GOTO(ret = lysp_dup_single(ctx, pnode, 1, dev_pnode), cleanup); + } + + /* apply all the deviates by changing (the copy of) the parsed node */ + LY_ARRAY_FOR(dev->devs, u) { + LY_CHECK_GOTO(ret = lys_apply_deviation(ctx, dev->devs[u], dev->dev_pmods[u], *dev_pnode), cleanup); + } + +dev_applied: + /* deviation was applied, remove it */ + lysc_deviation_free(ctx->ctx, dev); + ly_set_rm_index(&ctx->devs, i, NULL); + + /* all the deviations for one target node are in one structure, we are done */ + break; + } + +cleanup: + if (ret) { + lysp_dev_node_free(ctx, *dev_pnode); + *dev_pnode = NULL; + *not_supported = 0; + } + return ret; +} + +/** + * @brief Compile augment children. + * + * @param[in] ctx Compile context. + * @param[in] aug_when Parsed augment when to inherit. + * @param[in] aug_flags Parsed augment flags. + * @param[in] child First augment child to compile. + * @param[in] target Target node of the augment. + * @param[in] child_unres_disabled Whether the children are to be put into unres disabled set or not. + * @return LY_SUCCESS on success. + * @return LY_EVALID on failure. + */ +static LY_ERR +lys_compile_augment_children(struct lysc_ctx *ctx, struct lysp_when *aug_when, uint16_t aug_flags, struct lysp_node *child, + struct lysc_node *target, ly_bool child_unres_disabled) +{ + LY_ERR rc = LY_SUCCESS; + struct lysp_node *pnode; + struct lysc_node *node; + struct lysc_when *when_shared = NULL; + ly_bool enabled, allow_mand = 0; + struct ly_set child_set = {0}; + uint32_t i, opt_prev = ctx->compile_opts; + + /* check for mandatory nodes + * - new cases augmenting some choice can have mandatory nodes + * - mandatory nodes are allowed only in case the augmentation is made conditional with a when statement + */ + if (aug_when || (target->nodetype == LYS_CHOICE) || (ctx->cur_mod == target->module)) { + allow_mand = 1; + } + + LY_LIST_FOR(child, pnode) { + /* check if the subnode can be connected to the found target (e.g. case cannot be inserted into container) */ + if (((pnode->nodetype == LYS_CASE) && (target->nodetype != LYS_CHOICE)) || + ((pnode->nodetype & (LYS_RPC | LYS_ACTION | LYS_NOTIF)) && !(target->nodetype & (LYS_CONTAINER | LYS_LIST))) || + ((pnode->nodetype == LYS_USES) && (target->nodetype == LYS_CHOICE))) { + LOGVAL(ctx->ctx, LYVE_REFERENCE, + "Invalid augment of %s node which is not allowed to contain %s node \"%s\".", + lys_nodetype2str(target->nodetype), lys_nodetype2str(pnode->nodetype), pnode->name); + rc = LY_EVALID; + goto cleanup; + } + + /* compile the children */ + if (target->nodetype == LYS_CHOICE) { + LY_CHECK_GOTO(rc = lys_compile_node_choice_child(ctx, pnode, target, &child_set), cleanup); + } else if (target->nodetype & (LYS_INPUT | LYS_OUTPUT)) { + if (target->nodetype == LYS_INPUT) { + ctx->compile_opts |= LYS_COMPILE_RPC_INPUT; + } else { + ctx->compile_opts |= LYS_COMPILE_RPC_OUTPUT; + } + LY_CHECK_GOTO(rc = lys_compile_node(ctx, pnode, target, aug_flags, &child_set), cleanup); + } else { + LY_CHECK_GOTO(rc = lys_compile_node(ctx, pnode, target, aug_flags, &child_set), cleanup); + } + + /* eval if-features again for the rest of this node processing */ + LY_CHECK_GOTO(rc = lys_eval_iffeatures(ctx->ctx, pnode->iffeatures, &enabled), cleanup); + if (!enabled && !(ctx->compile_opts & (LYS_COMPILE_NO_DISABLED | LYS_COMPILE_DISABLED | LYS_COMPILE_GROUPING))) { + ctx->compile_opts |= LYS_COMPILE_DISABLED; + } + + /* since the augment node is not present in the compiled tree, we need to pass some of its + * statements to all its children */ + for (i = 0; i < child_set.count; ++i) { + node = child_set.snodes[i]; + if (!allow_mand && (node->flags & LYS_CONFIG_W) && (node->flags & LYS_MAND_TRUE)) { + node->flags &= ~LYS_MAND_TRUE; + lys_compile_mandatory_parents(target, 0); + LOGVAL(ctx->ctx, LYVE_SEMANTICS, + "Invalid augment adding mandatory node \"%s\" without making it conditional via when statement.", + node->name); + rc = LY_EVALID; + goto cleanup; + } + + if (aug_when) { + /* pass augment's when to all the children */ + rc = lys_compile_when(ctx, aug_when, aug_flags, target, lysc_data_node(target), node, &when_shared); + LY_CHECK_GOTO(rc, cleanup); + } + + if (child_unres_disabled) { + /* child is disabled by the augment if-features */ + ly_set_add(&ctx->unres->disabled, node, 1, NULL); + } + } + + /* next iter */ + ly_set_erase(&child_set, NULL); + ctx->compile_opts = opt_prev; + } + +cleanup: + ly_set_erase(&child_set, NULL); + ctx->compile_opts = opt_prev; + return rc; +} + +/** + * @brief Compile the parsed augment connecting it into its target. + * + * It is expected that all the data referenced in path are present - augments are ordered so that augment B + * targeting data from augment A is being compiled after augment A. Also the modules referenced in the path + * are already implemented and compiled. + * + * @param[in] ctx Compile context. + * @param[in] aug_p Parsed augment to compile. + * @param[in] target Target node of the augment. + * @return LY_SUCCESS on success. + * @return LY_EVALID on failure. + */ +static LY_ERR +lys_compile_augment(struct lysc_ctx *ctx, struct lysp_node_augment *aug_p, struct lysc_node *target) +{ + LY_ERR rc = LY_SUCCESS; + ly_bool enabled, child_unres_disabled = 0; + uint32_t opt_prev = ctx->compile_opts; + + assert(target->nodetype & (LYS_CONTAINER | LYS_LIST | LYS_CHOICE | LYS_CASE | LYS_INPUT | LYS_OUTPUT | LYS_NOTIF)); + + /* nodetype checks */ + if (aug_p->actions && !lysc_node_actions_p(target)) { + LOGVAL(ctx->ctx, LYVE_REFERENCE, + "Invalid augment of %s node which is not allowed to contain RPC/action node \"%s\".", + lys_nodetype2str(target->nodetype), aug_p->actions->name); + rc = LY_EVALID; + goto cleanup; + } + if (aug_p->notifs && !lysc_node_notifs_p(target)) { + LOGVAL(ctx->ctx, LYVE_REFERENCE, + "Invalid augment of %s node which is not allowed to contain notification node \"%s\".", + lys_nodetype2str(target->nodetype), aug_p->notifs->name); + rc = LY_EVALID; + goto cleanup; + } + + /* augment if-features */ + LY_CHECK_GOTO(rc = lys_eval_iffeatures(ctx->ctx, aug_p->iffeatures, &enabled), cleanup); + if (!enabled && !(ctx->compile_opts & (LYS_COMPILE_NO_DISABLED | LYS_COMPILE_DISABLED | LYS_COMPILE_GROUPING))) { + ctx->compile_opts |= LYS_COMPILE_DISABLED; + child_unres_disabled = 1; + } + + /* augment children */ + rc = lys_compile_augment_children(ctx, aug_p->when, aug_p->flags, aug_p->child, target, child_unres_disabled); + LY_CHECK_GOTO(rc, cleanup); + + /* augment actions */ + rc = lys_compile_augment_children(ctx, aug_p->when, aug_p->flags, (struct lysp_node *)aug_p->actions, target, + child_unres_disabled); + LY_CHECK_GOTO(rc, cleanup); + + /* augment notifications */ + rc = lys_compile_augment_children(ctx, aug_p->when, aug_p->flags, (struct lysp_node *)aug_p->notifs, target, + child_unres_disabled); + LY_CHECK_GOTO(rc, cleanup); + + /* compile extensions into the target */ + COMPILE_EXTS_GOTO(ctx, aug_p->exts, target->exts, target, rc, cleanup); + +cleanup: + ctx->compile_opts = opt_prev; + return rc; +} + +LY_ERR +lys_compile_node_augments(struct lysc_ctx *ctx, struct lysc_node *node) +{ + LY_ERR ret = LY_SUCCESS; + struct lys_module *orig_mod = ctx->cur_mod; + struct lysp_module *orig_pmod = ctx->pmod; + uint32_t i; + char orig_path[LYSC_CTX_BUFSIZE]; + struct lysc_augment *aug; + + /* uses augments */ + for (i = 0; i < ctx->uses_augs.count; ) { + aug = ctx->uses_augs.objs[i]; + + if (!lysp_schema_nodeid_match(aug->nodeid, orig_mod->parsed, aug->ext, aug->nodeid_ctx_node, node, NULL, NULL, + ctx->ext)) { + /* not our target node */ + ++i; + continue; + } + + /* use the path and modules from the augment */ + lysc_update_path(ctx, NULL, "{augment}"); + lysc_update_path(ctx, NULL, aug->aug_p->nodeid); + ctx->pmod = (struct lysp_module *)aug->aug_pmod; + + /* apply augment, restore the path */ + ret = lys_compile_augment(ctx, aug->aug_p, node); + lysc_update_path(ctx, NULL, NULL); + lysc_update_path(ctx, NULL, NULL); + LY_CHECK_GOTO(ret, cleanup); + + /* augment was applied, remove it (index and the whole set may have changed because other augments + * could have been applied) */ + ly_set_rm(&ctx->uses_augs, aug, NULL); + lysc_augment_free(ctx->ctx, aug); + i = 0; + } + + /* top-level augments */ + for (i = 0; i < ctx->augs.count; ) { + aug = ctx->augs.objs[i]; + + if (!lysp_schema_nodeid_match(aug->nodeid, aug->aug_pmod, aug->ext, NULL, node, NULL, NULL, ctx->ext)) { + /* not our target node */ + ++i; + continue; + } + + /* use the path and modules from the augment */ + strcpy(orig_path, ctx->path); + ctx->path_len = 1; + ctx->cur_mod = aug->aug_pmod->mod; + ctx->pmod = (struct lysp_module *)aug->aug_pmod; + lysc_update_path(ctx, NULL, "{augment}"); + lysc_update_path(ctx, NULL, aug->aug_p->nodeid); + + /* apply augment, restore the path */ + ret = lys_compile_augment(ctx, aug->aug_p, node); + strcpy(ctx->path, orig_path); + ctx->path_len = strlen(ctx->path); + LY_CHECK_GOTO(ret, cleanup); + + /* augment was applied, remove it */ + ly_set_rm(&ctx->augs, aug, NULL); + lysc_augment_free(ctx->ctx, aug); + i = 0; + } + +cleanup: + ctx->cur_mod = orig_mod; + ctx->pmod = orig_pmod; + return ret; +} + +/** + * @brief Prepare an absolute-nodeid augment to be applied during data nodes compilation. + * + * @param[in] ctx Compile context. + * @param[in] aug_p Parsed augment to be applied. + * @param[in] pmod Both current and prefix module for @p aug_p. + * @param[in] ext Extension instance in case @p aug_p is defined in one. + * @return LY_ERR value. + */ +static LY_ERR +lys_precompile_own_augment(struct lysc_ctx *ctx, struct lysp_node_augment *aug_p, const struct lysp_module *pmod, + const struct lysp_ext_instance *ext) +{ + LY_ERR ret = LY_SUCCESS; + struct lysc_nodeid *nodeid = NULL; + struct lysc_augment *aug; + const struct lys_module *mod; + + /* compile its target, it was already parsed and fully checked (except for the existence of the nodes) */ + ret = lys_precompile_nodeid(ctx->ctx, aug_p->nodeid, &nodeid); + LY_CHECK_GOTO(ret, cleanup); + + mod = lys_schema_node_get_module(ctx->ctx, nodeid->prefix[0], pmod); + LY_CHECK_ERR_GOTO(!mod, LOGINT(ctx->ctx); ret = LY_EINT, cleanup); + if (mod != ctx->cur_mod) { + /* augment for another module, ignore */ + goto cleanup; + } + + /* allocate new compiled augment and store it in the set */ + aug = calloc(1, sizeof *aug); + LY_CHECK_ERR_GOTO(!aug, LOGMEM(ctx->ctx); ret = LY_EMEM, cleanup); + LY_CHECK_GOTO(ret = ly_set_add(&ctx->augs, aug, 1, NULL), cleanup); + + aug->nodeid = nodeid; + nodeid = NULL; + aug->aug_pmod = pmod; + aug->ext = ext; + aug->aug_p = aug_p; + +cleanup: + lysc_nodeid_free(ctx->ctx, nodeid); + return ret; +} + +/** + * @brief Prepare all top-level augments and extension instance augments to be applied during data nodes compilation. + * + * @param[in] ctx Compile context. + * @param[in] pmod Parsed mod to use. + * @return LY_ERR value. + */ +static LY_ERR +lys_precompile_own_augments_mod(struct lysc_ctx *ctx, const struct lysp_module *pmod) +{ + LY_ARRAY_COUNT_TYPE u, v; + struct lysp_node_augment *aug_p; + + /* module */ + LY_LIST_FOR(pmod->augments, aug_p) { + LY_CHECK_RET(lys_precompile_own_augment(ctx, aug_p, pmod, NULL)); + } + + /* parsed extension instances */ + LY_ARRAY_FOR(pmod->exts, u) { + aug_p = NULL; + LY_ARRAY_FOR(pmod->exts[u].substmts, v) { + if (pmod->exts[u].substmts[v].stmt == LY_STMT_AUGMENT) { + aug_p = *VOIDPTR2_C(pmod->exts[u].substmts[v].storage); + break; + } + } + if (!aug_p) { + continue; + } + + LY_CHECK_RET(lys_precompile_own_augment(ctx, aug_p, pmod, &pmod->exts[u])); + } + + return LY_SUCCESS; +} + +LY_ERR +lys_precompile_own_augments(struct lysc_ctx *ctx) +{ + LY_ARRAY_COUNT_TYPE u, v; + const struct lys_module *aug_mod; + const struct lysp_module *submod; + + LY_ARRAY_FOR(ctx->cur_mod->augmented_by, u) { + aug_mod = ctx->cur_mod->augmented_by[u]; + + /* collect all module augments */ + LY_CHECK_RET(lys_precompile_own_augments_mod(ctx, aug_mod->parsed)); + + /* collect all submodules augments */ + LY_ARRAY_FOR(aug_mod->parsed->includes, v) { + submod = (struct lysp_module *)aug_mod->parsed->includes[v].submodule; + + LY_CHECK_RET(lys_precompile_own_augments_mod(ctx, submod)); + } + } + + return LY_SUCCESS; +} + +/** + * @brief Prepare a deviation to be applied during data nodes compilation. + * + * @param[in] ctx Compile context. + * @param[in] dev_p Parsed deviation to be applied. + * @param[in] pmod Both current and prefix module for @p dev_p. + * @return LY_ERR value. + */ +static LY_ERR +lys_precompile_own_deviation(struct lysc_ctx *ctx, struct lysp_deviation *dev_p, const struct lysp_module *pmod) +{ + LY_ERR ret = LY_SUCCESS; + struct lysc_deviation *dev = NULL; + struct lysc_nodeid *nodeid = NULL; + struct lysp_deviation **new_dev; + const struct lys_module *mod; + const struct lysp_module **new_dev_pmod; + uint32_t i; + + /* parse its target, it was already parsed and fully checked (except for the existence of the nodes) */ + ret = lys_precompile_nodeid(ctx->ctx, dev_p->nodeid, &nodeid); + LY_CHECK_GOTO(ret, cleanup); + + mod = lys_schema_node_get_module(ctx->ctx, nodeid->prefix[0], pmod); + LY_CHECK_ERR_GOTO(!mod, LOGINT(ctx->ctx); ret = LY_EINT, cleanup); + if (mod != ctx->cur_mod) { + /* deviation for another module, ignore */ + goto cleanup; + } + + /* try to find the node in already compiled deviations */ + for (i = 0; i < ctx->devs.count; ++i) { + if (lys_abs_schema_nodeid_match(ctx->ctx, nodeid, pmod, ((struct lysc_deviation *)ctx->devs.objs[i])->nodeid, + ((struct lysc_deviation *)ctx->devs.objs[i])->dev_pmods[0])) { + dev = ctx->devs.objs[i]; + break; + } + } + + if (!dev) { + /* allocate new compiled deviation */ + dev = calloc(1, sizeof *dev); + LY_CHECK_ERR_GOTO(!dev, LOGMEM(ctx->ctx); ret = LY_EMEM, cleanup); + LY_CHECK_GOTO(ret = ly_set_add(&ctx->devs, dev, 1, NULL), cleanup); + + dev->nodeid = nodeid; + nodeid = NULL; + } + + /* add new parsed deviation structure */ + LY_ARRAY_NEW_GOTO(ctx->ctx, dev->devs, new_dev, ret, cleanup); + *new_dev = dev_p; + LY_ARRAY_NEW_GOTO(ctx->ctx, dev->dev_pmods, new_dev_pmod, ret, cleanup); + *new_dev_pmod = pmod; + +cleanup: + lysc_nodeid_free(ctx->ctx, nodeid); + return ret; +} + +LY_ERR +lys_precompile_own_deviations(struct lysc_ctx *ctx) +{ + LY_ARRAY_COUNT_TYPE u, v, w; + struct lys_module *orig_cur_mod; + const struct lys_module *dev_mod; + struct lysc_deviation *dev; + struct lysp_deviate *d; + int not_supported; + uint32_t i; + + LY_ARRAY_FOR(ctx->cur_mod->deviated_by, u) { + dev_mod = ctx->cur_mod->deviated_by[u]; + + /* compile all module deviations */ + LY_ARRAY_FOR(dev_mod->parsed->deviations, v) { + LY_CHECK_RET(lys_precompile_own_deviation(ctx, &dev_mod->parsed->deviations[v], dev_mod->parsed)); + } + + /* compile all submodules deviations */ + LY_ARRAY_FOR(dev_mod->parsed->includes, v) { + LY_ARRAY_FOR(dev_mod->parsed->includes[v].submodule->deviations, w) { + LY_CHECK_RET(lys_precompile_own_deviation(ctx, &dev_mod->parsed->includes[v].submodule->deviations[w], + (struct lysp_module *)dev_mod->parsed->includes[v].submodule)); + } + } + } + + /* set not-supported flags for all the deviations */ + for (i = 0; i < ctx->devs.count; ++i) { + dev = ctx->devs.objs[i]; + not_supported = 0; + + LY_ARRAY_FOR(dev->devs, u) { + LY_LIST_FOR(dev->devs[u]->deviates, d) { + if (d->mod == LYS_DEV_NOT_SUPPORTED) { + not_supported = 1; + break; + } + } + if (not_supported) { + break; + } + } + if (not_supported && (LY_ARRAY_COUNT(dev->devs) > 1)) { + orig_cur_mod = ctx->cur_mod; + ctx->cur_mod = dev->dev_pmods[u]->mod; + lysc_update_path(ctx, NULL, "{deviation}"); + lysc_update_path(ctx, NULL, dev->nodeid->str); + LOGVAL(ctx->ctx, LYVE_SEMANTICS, + "Multiple deviations of \"%s\" with one of them being \"not-supported\".", dev->nodeid->str); + lysc_update_path(ctx, NULL, NULL); + lysc_update_path(ctx, NULL, NULL); + ctx->cur_mod = orig_cur_mod; + return LY_EVALID; + } + + dev->not_supported = not_supported; + } + + return LY_SUCCESS; +} + +/** + * @brief Add a module reference into an array, checks for duplicities. + * + * @param[in] ctx Compile context. + * @param[in] mod Module reference to add. + * @param[in,out] mod_array Module sized array to add to. + * @return LY_ERR value. + */ +static LY_ERR +lys_array_add_mod_ref(struct lysc_ctx *ctx, struct lys_module *mod, struct lys_module ***mod_array) +{ + LY_ARRAY_COUNT_TYPE u; + struct lys_module **new_mod; + + LY_ARRAY_FOR(*mod_array, u) { + if ((*mod_array)[u] == mod) { + /* already there */ + return LY_EEXIST; + } + } + + /* add the new module ref */ + LY_ARRAY_NEW_RET(ctx->ctx, *mod_array, new_mod, LY_EMEM); + *new_mod = mod; + + return LY_SUCCESS; +} + +/** + * @brief Check whether all modules in a set are implemented. + * + * @param[in] mod_set Module set to check. + * @return Whether all modules are implemented or not. + */ +static ly_bool +lys_precompile_mod_set_is_all_implemented(const struct ly_set *mod_set) +{ + uint32_t i; + const struct lys_module *mod; + + for (i = 0; i < mod_set->count; ++i) { + mod = mod_set->objs[i]; + if (!mod->implemented) { + return 0; + } + } + + return 1; +} + +/** + * @brief Add references to target modules of top-level augments, deviations, and augments in extension instances + * in a module and all its submodules. + * + * @param[in] pmod Module to process. + * @param[in,out] mod_set Module set to add referenced modules into. + * @return LY_SUCCESS on success. + * @return LY_ERR on error. + */ +static LY_ERR +lys_precompile_mod_augments_deviations(struct lysp_module *pmod, struct ly_set *mod_set) +{ + LY_ERR ret = LY_SUCCESS; + LY_ARRAY_COUNT_TYPE u, v; + struct lysc_ctx ctx; + struct lys_module *m; + struct lysp_node_augment *aug; + struct ly_set set = {0}; + + LYSC_CTX_INIT_PMOD(ctx, pmod, NULL); + + LY_LIST_FOR(pmod->augments, aug) { + /* get target module */ + lysc_update_path(&ctx, NULL, "{augment}"); + lysc_update_path(&ctx, NULL, aug->nodeid); + ret = lys_nodeid_mod_check(&ctx, aug->nodeid, 1, &set, NULL, &m); + lysc_update_path(&ctx, NULL, NULL); + lysc_update_path(&ctx, NULL, NULL); + LY_CHECK_GOTO(ret, cleanup); + + /* add this module into the target module augmented_by, if not there and implemented */ + if ((lys_array_add_mod_ref(&ctx, pmod->mod, &m->augmented_by) != LY_EEXIST) || + !lys_precompile_mod_set_is_all_implemented(&set)) { + LY_CHECK_GOTO(ret = ly_set_merge(mod_set, &set, 0, NULL), cleanup); + } + ly_set_erase(&set, NULL); + } + + LY_ARRAY_FOR(pmod->deviations, u) { + /* get target module */ + lysc_update_path(&ctx, NULL, "{deviation}"); + lysc_update_path(&ctx, NULL, pmod->deviations[u].nodeid); + ret = lys_nodeid_mod_check(&ctx, pmod->deviations[u].nodeid, 1, &set, NULL, &m); + lysc_update_path(&ctx, NULL, NULL); + lysc_update_path(&ctx, NULL, NULL); + LY_CHECK_GOTO(ret, cleanup); + + /* add this module into the target module deviated_by, if not there and implemented */ + if ((lys_array_add_mod_ref(&ctx, pmod->mod, &m->deviated_by) != LY_EEXIST) || + !lys_precompile_mod_set_is_all_implemented(&set)) { + LY_CHECK_GOTO(ret = ly_set_merge(mod_set, &set, 0, NULL), cleanup); + } + ly_set_erase(&set, NULL); + } + + LY_ARRAY_FOR(pmod->exts, u) { + aug = NULL; + LY_ARRAY_FOR(pmod->exts[u].substmts, v) { + if (pmod->exts[u].substmts[v].stmt == LY_STMT_AUGMENT) { + aug = *VOIDPTR2_C(pmod->exts[u].substmts[v].storage); + break; + } + } + if (!aug) { + continue; + } + + /* get target module */ + lysc_update_path(&ctx, NULL, "{ext-augment}"); + lysc_update_path(&ctx, NULL, aug->nodeid); + ret = lys_nodeid_mod_check(&ctx, aug->nodeid, 1, &set, NULL, &m); + lysc_update_path(&ctx, NULL, NULL); + lysc_update_path(&ctx, NULL, NULL); + LY_CHECK_GOTO(ret, cleanup); + + /* add this module into the target module augmented_by, if not there and implemented */ + if ((lys_array_add_mod_ref(&ctx, pmod->mod, &m->augmented_by) != LY_EEXIST) || + !lys_precompile_mod_set_is_all_implemented(&set)) { + LY_CHECK_GOTO(ret = ly_set_merge(mod_set, &set, 0, NULL), cleanup); + } + ly_set_erase(&set, NULL); + } + +cleanup: + ly_set_erase(&set, NULL); + return ret; +} + +LY_ERR +lys_precompile_augments_deviations(struct lys_module *mod, struct lys_glob_unres *unres) +{ + LY_ERR ret = LY_SUCCESS, r; + LY_ARRAY_COUNT_TYPE u; + struct lys_module *m; + struct lysp_module *submod; + const char **imp_f, *all_f[] = {"*", NULL}; + uint32_t i; + struct ly_set mod_set = {0}; + + /* module */ + LY_CHECK_GOTO(ret = lys_precompile_mod_augments_deviations(mod->parsed, &mod_set), cleanup); + + /* submodules */ + LY_ARRAY_FOR(mod->parsed->includes, u) { + submod = (struct lysp_module *)mod->parsed->includes[u].submodule; + LY_CHECK_GOTO(ret = lys_precompile_mod_augments_deviations(submod, &mod_set), cleanup); + } + + for (i = 0; i < mod_set.count; ++i) { + m = mod_set.objs[i]; + + if (m == mod) { + /* will be applied normally later */ + continue; + } + + /* we do not actually need the target modules compiled with out amends, they just need to be implemented + * not compiled yet and marked for compilation */ + + if (!m->implemented) { + /* implement the target module */ + imp_f = (mod->ctx->flags & LY_CTX_ENABLE_IMP_FEATURES) ? all_f : NULL; + r = lys_implement(m, imp_f, unres); + if (r == LY_ERECOMPILE) { + /* implement all the modules right away to save possible later recompilation */ + ret = r; + continue; + } else if (r) { + /* error */ + ret = r; + goto cleanup; + } + } else if (m->compiled) { + /* target module was already compiled without our amends (augment/deviation), we need to recompile it */ + m->to_compile = 1; + ret = LY_ERECOMPILE; + continue; + } + } + +cleanup: + ly_set_erase(&mod_set, NULL); + return ret; +} + +void +lys_precompile_augments_deviations_revert(struct ly_ctx *ctx, const struct lys_module *mod) +{ + uint32_t i; + LY_ARRAY_COUNT_TYPE u, count; + struct lys_module *m; + + for (i = 0; i < ctx->list.count; ++i) { + m = ctx->list.objs[i]; + + if (m->augmented_by) { + count = LY_ARRAY_COUNT(m->augmented_by); + for (u = 0; u < count; ++u) { + if (m->augmented_by[u] == mod) { + /* keep the order */ + if (u < count - 1) { + memmove(m->augmented_by + u, m->augmented_by + u + 1, (count - u - 1) * sizeof *m->augmented_by); + } + LY_ARRAY_DECREMENT(m->augmented_by); + break; + } + } + if (!LY_ARRAY_COUNT(m->augmented_by)) { + LY_ARRAY_FREE(m->augmented_by); + m->augmented_by = NULL; + } + } + + if (m->deviated_by) { + count = LY_ARRAY_COUNT(m->deviated_by); + for (u = 0; u < count; ++u) { + if (m->deviated_by[u] == mod) { + /* keep the order */ + if (u < count - 1) { + memmove(m->deviated_by + u, m->deviated_by + u + 1, (count - u - 1) * sizeof *m->deviated_by); + } + LY_ARRAY_DECREMENT(m->deviated_by); + break; + } + } + if (!LY_ARRAY_COUNT(m->deviated_by)) { + LY_ARRAY_FREE(m->deviated_by); + m->deviated_by = NULL; + } + } + } +} |