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-rw-r--r--lib/yang_wrappers.c1155
1 files changed, 1155 insertions, 0 deletions
diff --git a/lib/yang_wrappers.c b/lib/yang_wrappers.c
new file mode 100644
index 0000000..ea21d13
--- /dev/null
+++ b/lib/yang_wrappers.c
@@ -0,0 +1,1155 @@
+/*
+ * Copyright (C) 2018 NetDEF, Inc.
+ * Renato Westphal
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; see the file COPYING; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <zebra.h>
+
+#include "base64.h"
+#include "log.h"
+#include "lib_errors.h"
+#include "northbound.h"
+#include "printfrr.h"
+#include "nexthop.h"
+#include "printfrr.h"
+
+
+#define YANG_DNODE_XPATH_GET_VALUE(dnode, xpath_fmt) \
+ ({ \
+ va_list __ap; \
+ va_start(__ap, (xpath_fmt)); \
+ const struct lyd_value *__dvalue = \
+ yang_dnode_xpath_get_value(dnode, xpath_fmt, __ap); \
+ va_end(__ap); \
+ __dvalue; \
+ })
+
+#define YANG_DNODE_XPATH_GET_CANON(dnode, xpath_fmt) \
+ ({ \
+ va_list __ap; \
+ va_start(__ap, (xpath_fmt)); \
+ const char *__canon = \
+ yang_dnode_xpath_get_canon(dnode, xpath_fmt, __ap); \
+ va_end(__ap); \
+ __canon; \
+ })
+
+#define YANG_DNODE_GET_ASSERT(dnode, xpath) \
+ do { \
+ if ((dnode) == NULL) { \
+ flog_err(EC_LIB_YANG_DNODE_NOT_FOUND, \
+ "%s: couldn't find %s", __func__, (xpath)); \
+ zlog_backtrace(LOG_ERR); \
+ abort(); \
+ } \
+ } while (0)
+
+static inline const char *
+yang_dnode_xpath_get_canon(const struct lyd_node *dnode, const char *xpath_fmt,
+ va_list ap)
+{
+ const struct lyd_node_term *__dleaf =
+ (const struct lyd_node_term *)dnode;
+ assert(__dleaf);
+ if (xpath_fmt) {
+ char __xpath[XPATH_MAXLEN];
+ vsnprintf(__xpath, sizeof(__xpath), xpath_fmt, ap);
+ __dleaf = (const struct lyd_node_term *)yang_dnode_get(dnode,
+ __xpath);
+ YANG_DNODE_GET_ASSERT(__dleaf, __xpath);
+ }
+ return lyd_get_value(&__dleaf->node);
+}
+
+static inline const struct lyd_value *
+yang_dnode_xpath_get_value(const struct lyd_node *dnode, const char *xpath_fmt,
+ va_list ap)
+{
+ const struct lyd_node_term *__dleaf =
+ (const struct lyd_node_term *)dnode;
+ assert(__dleaf);
+ if (xpath_fmt) {
+ char __xpath[XPATH_MAXLEN];
+ vsnprintf(__xpath, sizeof(__xpath), xpath_fmt, ap);
+ __dleaf = (const struct lyd_node_term *)yang_dnode_get(dnode,
+ __xpath);
+ YANG_DNODE_GET_ASSERT(__dleaf, __xpath);
+ }
+ const struct lyd_value *__dvalue = &__dleaf->value;
+ if (__dvalue->realtype->basetype == LY_TYPE_UNION)
+ __dvalue = &__dvalue->subvalue->value;
+ return __dvalue;
+}
+
+static const char *yang_get_default_value(const char *xpath)
+{
+ const struct lysc_node *snode;
+ const char *value;
+
+ snode = lys_find_path(ly_native_ctx, NULL, xpath, 0);
+ if (snode == NULL) {
+ flog_err(EC_LIB_YANG_UNKNOWN_DATA_PATH,
+ "%s: unknown data path: %s", __func__, xpath);
+ zlog_backtrace(LOG_ERR);
+ abort();
+ }
+
+ value = yang_snode_get_default(snode);
+ assert(value);
+
+ return value;
+}
+
+/*
+ * Primitive type: bool.
+ */
+bool yang_str2bool(const char *value)
+{
+ return strmatch(value, "true");
+}
+
+struct yang_data *yang_data_new_bool(const char *xpath, bool value)
+{
+ return yang_data_new(xpath, (value) ? "true" : "false");
+}
+
+bool yang_dnode_get_bool(const struct lyd_node *dnode, const char *xpath_fmt,
+ ...)
+{
+ const struct lyd_value *dvalue;
+ dvalue = YANG_DNODE_XPATH_GET_VALUE(dnode, xpath_fmt);
+ assert(dvalue->realtype->basetype == LY_TYPE_BOOL);
+ return dvalue->boolean;
+}
+
+bool yang_get_default_bool(const char *xpath_fmt, ...)
+{
+ char xpath[XPATH_MAXLEN];
+ const char *value;
+ va_list ap;
+
+ va_start(ap, xpath_fmt);
+ vsnprintf(xpath, sizeof(xpath), xpath_fmt, ap);
+ va_end(ap);
+
+ value = yang_get_default_value(xpath);
+ return yang_str2bool(value);
+}
+
+/*
+ * Primitive type: dec64.
+ */
+double yang_str2dec64(const char *xpath, const char *value)
+{
+ double dbl = 0;
+
+ if (sscanf(value, "%lf", &dbl) != 1) {
+ flog_err(EC_LIB_YANG_DATA_CONVERT,
+ "%s: couldn't convert string to decimal64 [xpath %s]",
+ __func__, xpath);
+ zlog_backtrace(LOG_ERR);
+ abort();
+ }
+
+ return dbl;
+}
+
+struct yang_data *yang_data_new_dec64(const char *xpath, double value)
+{
+ char value_str[BUFSIZ];
+
+ snprintf(value_str, sizeof(value_str), "%lf", value);
+ return yang_data_new(xpath, value_str);
+}
+
+double yang_dnode_get_dec64(const struct lyd_node *dnode, const char *xpath_fmt,
+ ...)
+{
+ const double denom[19] = {1e0, 1e-1, 1e-2, 1e-3, 1e-4,
+ 1e-5, 1e-6, 1e-7, 1e-8, 1e-9,
+ 1e-10, 1e-11, 1e-12, 1e-13, 1e-14,
+ 1e-15, 1e-16, 1e-17, 1e-18};
+ const struct lysc_type_dec *dectype;
+ const struct lyd_value *dvalue;
+
+ dvalue = YANG_DNODE_XPATH_GET_VALUE(dnode, xpath_fmt);
+ dectype = (const struct lysc_type_dec *)dvalue->realtype;
+ assert(dectype->basetype == LY_TYPE_DEC64);
+ assert(dectype->fraction_digits < sizeof(denom) / sizeof(*denom));
+ return (double)dvalue->dec64 * denom[dectype->fraction_digits];
+}
+
+double yang_get_default_dec64(const char *xpath_fmt, ...)
+{
+ char xpath[XPATH_MAXLEN];
+ const char *value;
+ va_list ap;
+
+ va_start(ap, xpath_fmt);
+ vsnprintf(xpath, sizeof(xpath), xpath_fmt, ap);
+ va_end(ap);
+
+ value = yang_get_default_value(xpath);
+ return yang_str2dec64(xpath, value);
+}
+
+/*
+ * Primitive type: enum.
+ */
+int yang_str2enum(const char *xpath, const char *value)
+{
+ const struct lysc_node *snode;
+ const struct lysc_node_leaf *sleaf;
+ const struct lysc_type_enum *type;
+ const struct lysc_type_bitenum_item *enums;
+
+ snode = lys_find_path(ly_native_ctx, NULL, xpath, 0);
+ if (snode == NULL) {
+ flog_err(EC_LIB_YANG_UNKNOWN_DATA_PATH,
+ "%s: unknown data path: %s", __func__, xpath);
+ zlog_backtrace(LOG_ERR);
+ abort();
+ }
+
+ assert(snode->nodetype == LYS_LEAF);
+ sleaf = (const struct lysc_node_leaf *)snode;
+ type = (const struct lysc_type_enum *)sleaf->type;
+ assert(type->basetype == LY_TYPE_ENUM);
+ enums = type->enums;
+ unsigned int count = LY_ARRAY_COUNT(enums);
+ for (unsigned int i = 0; i < count; i++) {
+ if (strmatch(value, enums[i].name)) {
+ assert(CHECK_FLAG(enums[i].flags, LYS_SET_VALUE));
+ return enums[i].value;
+ }
+ }
+
+ flog_err(EC_LIB_YANG_DATA_CONVERT,
+ "%s: couldn't convert string to enum [xpath %s]", __func__,
+ xpath);
+ zlog_backtrace(LOG_ERR);
+ abort();
+}
+
+struct yang_data *yang_data_new_enum(const char *xpath, int value)
+{
+ const struct lysc_node *snode;
+ const struct lysc_node_leaf *sleaf;
+ const struct lysc_type_enum *type;
+ const struct lysc_type_bitenum_item *enums;
+
+ snode = lys_find_path(ly_native_ctx, NULL, xpath, 0);
+ if (snode == NULL) {
+ flog_err(EC_LIB_YANG_UNKNOWN_DATA_PATH,
+ "%s: unknown data path: %s", __func__, xpath);
+ zlog_backtrace(LOG_ERR);
+ abort();
+ }
+
+ assert(snode->nodetype == LYS_LEAF);
+ sleaf = (const struct lysc_node_leaf *)snode;
+ type = (const struct lysc_type_enum *)sleaf->type;
+ assert(type->basetype == LY_TYPE_ENUM);
+ enums = type->enums;
+ unsigned int count = LY_ARRAY_COUNT(enums);
+ for (unsigned int i = 0; i < count; i++) {
+ if (CHECK_FLAG(enums[i].flags, LYS_SET_VALUE)
+ && value == enums[i].value)
+ return yang_data_new(xpath, enums[i].name);
+ }
+
+ flog_err(EC_LIB_YANG_DATA_CONVERT,
+ "%s: couldn't convert enum to string [xpath %s]", __func__,
+ xpath);
+ zlog_backtrace(LOG_ERR);
+ abort();
+}
+
+int yang_dnode_get_enum(const struct lyd_node *dnode, const char *xpath_fmt,
+ ...)
+{
+ const struct lyd_value *dvalue;
+
+ dvalue = YANG_DNODE_XPATH_GET_VALUE(dnode, xpath_fmt);
+ assert(dvalue->realtype->basetype == LY_TYPE_ENUM);
+ assert(dvalue->enum_item->flags & LYS_SET_VALUE);
+ return dvalue->enum_item->value;
+}
+
+int yang_get_default_enum(const char *xpath_fmt, ...)
+{
+ char xpath[XPATH_MAXLEN];
+ const char *value;
+ va_list ap;
+
+ va_start(ap, xpath_fmt);
+ vsnprintf(xpath, sizeof(xpath), xpath_fmt, ap);
+ va_end(ap);
+
+ value = yang_get_default_value(xpath);
+ return yang_str2enum(xpath, value);
+}
+
+/*
+ * Primitive type: int8.
+ */
+int8_t yang_str2int8(const char *value)
+{
+ return strtol(value, NULL, 10);
+}
+
+struct yang_data *yang_data_new_int8(const char *xpath, int8_t value)
+{
+ char value_str[BUFSIZ];
+
+ snprintf(value_str, sizeof(value_str), "%d", value);
+ return yang_data_new(xpath, value_str);
+}
+
+int8_t yang_dnode_get_int8(const struct lyd_node *dnode, const char *xpath_fmt,
+ ...)
+{
+ const struct lyd_value *dvalue;
+ dvalue = YANG_DNODE_XPATH_GET_VALUE(dnode, xpath_fmt);
+ assert(dvalue->realtype->basetype == LY_TYPE_INT8);
+ return dvalue->int8;
+}
+
+int8_t yang_get_default_int8(const char *xpath_fmt, ...)
+{
+ char xpath[XPATH_MAXLEN];
+ const char *value;
+ va_list ap;
+
+ va_start(ap, xpath_fmt);
+ vsnprintf(xpath, sizeof(xpath), xpath_fmt, ap);
+ va_end(ap);
+
+ value = yang_get_default_value(xpath);
+ return yang_str2int8(value);
+}
+
+/*
+ * Primitive type: int16.
+ */
+int16_t yang_str2int16(const char *value)
+{
+ return strtol(value, NULL, 10);
+}
+
+struct yang_data *yang_data_new_int16(const char *xpath, int16_t value)
+{
+ char value_str[BUFSIZ];
+
+ snprintf(value_str, sizeof(value_str), "%d", value);
+ return yang_data_new(xpath, value_str);
+}
+
+int16_t yang_dnode_get_int16(const struct lyd_node *dnode,
+ const char *xpath_fmt, ...)
+{
+ const struct lyd_value *dvalue;
+ dvalue = YANG_DNODE_XPATH_GET_VALUE(dnode, xpath_fmt);
+ assert(dvalue->realtype->basetype == LY_TYPE_INT16);
+ return dvalue->int16;
+}
+
+int16_t yang_get_default_int16(const char *xpath_fmt, ...)
+{
+ char xpath[XPATH_MAXLEN];
+ const char *value;
+ va_list ap;
+
+ va_start(ap, xpath_fmt);
+ vsnprintf(xpath, sizeof(xpath), xpath_fmt, ap);
+ va_end(ap);
+
+ value = yang_get_default_value(xpath);
+ return yang_str2int16(value);
+}
+
+/*
+ * Primitive type: int32.
+ */
+int32_t yang_str2int32(const char *value)
+{
+ return strtol(value, NULL, 10);
+}
+
+struct yang_data *yang_data_new_int32(const char *xpath, int32_t value)
+{
+ char value_str[BUFSIZ];
+
+ snprintf(value_str, sizeof(value_str), "%d", value);
+ return yang_data_new(xpath, value_str);
+}
+
+int32_t yang_dnode_get_int32(const struct lyd_node *dnode,
+ const char *xpath_fmt, ...)
+{
+ const struct lyd_value *dvalue;
+ dvalue = YANG_DNODE_XPATH_GET_VALUE(dnode, xpath_fmt);
+ assert(dvalue->realtype->basetype == LY_TYPE_INT32);
+ return dvalue->int32;
+}
+
+int32_t yang_get_default_int32(const char *xpath_fmt, ...)
+{
+ char xpath[XPATH_MAXLEN];
+ const char *value;
+ va_list ap;
+
+ va_start(ap, xpath_fmt);
+ vsnprintf(xpath, sizeof(xpath), xpath_fmt, ap);
+ va_end(ap);
+
+ value = yang_get_default_value(xpath);
+ return yang_str2int32(value);
+}
+
+/*
+ * Primitive type: int64.
+ */
+int64_t yang_str2int64(const char *value)
+{
+ return strtoll(value, NULL, 10);
+}
+
+struct yang_data *yang_data_new_int64(const char *xpath, int64_t value)
+{
+ char value_str[BUFSIZ];
+
+ snprintfrr(value_str, sizeof(value_str), "%" PRId64, value);
+ return yang_data_new(xpath, value_str);
+}
+
+int64_t yang_dnode_get_int64(const struct lyd_node *dnode,
+ const char *xpath_fmt, ...)
+{
+ const struct lyd_value *dvalue;
+ dvalue = YANG_DNODE_XPATH_GET_VALUE(dnode, xpath_fmt);
+ assert(dvalue->realtype->basetype == LY_TYPE_INT64);
+ return dvalue->int64;
+}
+
+int64_t yang_get_default_int64(const char *xpath_fmt, ...)
+{
+ char xpath[XPATH_MAXLEN];
+ const char *value;
+ va_list ap;
+
+ va_start(ap, xpath_fmt);
+ vsnprintf(xpath, sizeof(xpath), xpath_fmt, ap);
+ va_end(ap);
+
+ value = yang_get_default_value(xpath);
+ return yang_str2int64(value);
+}
+
+/*
+ * Primitive type: uint8.
+ */
+uint8_t yang_str2uint8(const char *value)
+{
+ return strtoul(value, NULL, 10);
+}
+
+struct yang_data *yang_data_new_uint8(const char *xpath, uint8_t value)
+{
+ char value_str[BUFSIZ];
+
+ snprintf(value_str, sizeof(value_str), "%u", value);
+ return yang_data_new(xpath, value_str);
+}
+
+uint8_t yang_dnode_get_uint8(const struct lyd_node *dnode,
+ const char *xpath_fmt, ...)
+{
+ const struct lyd_value *dvalue;
+ dvalue = YANG_DNODE_XPATH_GET_VALUE(dnode, xpath_fmt);
+ assert(dvalue->realtype->basetype == LY_TYPE_UINT8);
+ return dvalue->uint8;
+}
+
+uint8_t yang_get_default_uint8(const char *xpath_fmt, ...)
+{
+ char xpath[XPATH_MAXLEN];
+ const char *value;
+ va_list ap;
+
+ va_start(ap, xpath_fmt);
+ vsnprintf(xpath, sizeof(xpath), xpath_fmt, ap);
+ va_end(ap);
+
+ value = yang_get_default_value(xpath);
+ return yang_str2uint8(value);
+}
+
+/*
+ * Primitive type: uint16.
+ */
+uint16_t yang_str2uint16(const char *value)
+{
+ return strtoul(value, NULL, 10);
+}
+
+struct yang_data *yang_data_new_uint16(const char *xpath, uint16_t value)
+{
+ char value_str[BUFSIZ];
+
+ snprintf(value_str, sizeof(value_str), "%u", value);
+ return yang_data_new(xpath, value_str);
+}
+
+uint16_t yang_dnode_get_uint16(const struct lyd_node *dnode,
+ const char *xpath_fmt, ...)
+{
+ const struct lyd_value *dvalue;
+ dvalue = YANG_DNODE_XPATH_GET_VALUE(dnode, xpath_fmt);
+ assert(dvalue->realtype->basetype == LY_TYPE_UINT16);
+ return dvalue->uint16;
+}
+
+uint16_t yang_get_default_uint16(const char *xpath_fmt, ...)
+{
+ char xpath[XPATH_MAXLEN];
+ const char *value;
+ va_list ap;
+
+ va_start(ap, xpath_fmt);
+ vsnprintf(xpath, sizeof(xpath), xpath_fmt, ap);
+ va_end(ap);
+
+ value = yang_get_default_value(xpath);
+ return yang_str2uint16(value);
+}
+
+/*
+ * Primitive type: uint32.
+ */
+uint32_t yang_str2uint32(const char *value)
+{
+ return strtoul(value, NULL, 10);
+}
+
+struct yang_data *yang_data_new_uint32(const char *xpath, uint32_t value)
+{
+ char value_str[BUFSIZ];
+
+ snprintf(value_str, sizeof(value_str), "%u", value);
+ return yang_data_new(xpath, value_str);
+}
+
+uint32_t yang_dnode_get_uint32(const struct lyd_node *dnode,
+ const char *xpath_fmt, ...)
+{
+ const struct lyd_value *dvalue;
+ dvalue = YANG_DNODE_XPATH_GET_VALUE(dnode, xpath_fmt);
+ assert(dvalue->realtype->basetype == LY_TYPE_UINT32);
+ return dvalue->uint32;
+}
+
+uint32_t yang_get_default_uint32(const char *xpath_fmt, ...)
+{
+ char xpath[XPATH_MAXLEN];
+ const char *value;
+ va_list ap;
+
+ va_start(ap, xpath_fmt);
+ vsnprintf(xpath, sizeof(xpath), xpath_fmt, ap);
+ va_end(ap);
+
+ value = yang_get_default_value(xpath);
+ return yang_str2uint32(value);
+}
+
+/*
+ * Primitive type: uint64.
+ */
+uint64_t yang_str2uint64(const char *value)
+{
+ return strtoull(value, NULL, 10);
+}
+
+struct yang_data *yang_data_new_uint64(const char *xpath, uint64_t value)
+{
+ char value_str[BUFSIZ];
+
+ snprintfrr(value_str, sizeof(value_str), "%" PRIu64, value);
+ return yang_data_new(xpath, value_str);
+}
+
+uint64_t yang_dnode_get_uint64(const struct lyd_node *dnode,
+ const char *xpath_fmt, ...)
+{
+ const struct lyd_value *dvalue;
+ dvalue = YANG_DNODE_XPATH_GET_VALUE(dnode, xpath_fmt);
+ assert(dvalue->realtype->basetype == LY_TYPE_UINT64);
+ return dvalue->uint64;
+}
+
+uint64_t yang_get_default_uint64(const char *xpath_fmt, ...)
+{
+ char xpath[XPATH_MAXLEN];
+ const char *value;
+ va_list ap;
+
+ va_start(ap, xpath_fmt);
+ vsnprintf(xpath, sizeof(xpath), xpath_fmt, ap);
+ va_end(ap);
+
+ value = yang_get_default_value(xpath);
+ return yang_str2uint64(value);
+}
+
+/*
+ * Primitive type: string.
+ *
+ * All string wrappers can be used with non-string types.
+ */
+struct yang_data *yang_data_new_string(const char *xpath, const char *value)
+{
+ return yang_data_new(xpath, value);
+}
+
+const char *yang_dnode_get_string(const struct lyd_node *dnode,
+ const char *xpath_fmt, ...)
+{
+ return YANG_DNODE_XPATH_GET_CANON(dnode, xpath_fmt);
+}
+
+void yang_dnode_get_string_buf(char *buf, size_t size,
+ const struct lyd_node *dnode,
+ const char *xpath_fmt, ...)
+{
+ const char *canon = YANG_DNODE_XPATH_GET_CANON(dnode, xpath_fmt);
+ if (strlcpy(buf, canon, size) >= size) {
+ char xpath[XPATH_MAXLEN];
+
+ yang_dnode_get_path(dnode, xpath, sizeof(xpath));
+ flog_warn(EC_LIB_YANG_DATA_TRUNCATED,
+ "%s: value was truncated [xpath %s]", __func__,
+ xpath);
+ }
+}
+
+const char *yang_get_default_string(const char *xpath_fmt, ...)
+{
+ char xpath[XPATH_MAXLEN];
+ va_list ap;
+
+ va_start(ap, xpath_fmt);
+ vsnprintf(xpath, sizeof(xpath), xpath_fmt, ap);
+ va_end(ap);
+
+ return yang_get_default_value(xpath);
+}
+
+void yang_get_default_string_buf(char *buf, size_t size, const char *xpath_fmt,
+ ...)
+{
+ char xpath[XPATH_MAXLEN];
+ const char *value;
+ va_list ap;
+
+ va_start(ap, xpath_fmt);
+ vsnprintf(xpath, sizeof(xpath), xpath_fmt, ap);
+ va_end(ap);
+
+ value = yang_get_default_value(xpath);
+ if (strlcpy(buf, value, size) >= size)
+ flog_warn(EC_LIB_YANG_DATA_TRUNCATED,
+ "%s: value was truncated [xpath %s]", __func__,
+ xpath);
+}
+
+/*
+ * Primitive type: binary.
+ */
+struct yang_data *yang_data_new_binary(const char *xpath, const char *value,
+ size_t len)
+{
+ char *value_str;
+ struct base64_encodestate s;
+ int cnt;
+ char *c;
+ struct yang_data *data;
+
+ value_str = (char *)malloc(len * 2);
+ base64_init_encodestate(&s);
+ cnt = base64_encode_block(value, len, value_str, &s);
+ c = value_str + cnt;
+ cnt = base64_encode_blockend(c, &s);
+ c += cnt;
+ *c = 0;
+ data = yang_data_new(xpath, value_str);
+ free(value_str);
+ return data;
+}
+
+size_t yang_dnode_get_binary_buf(char *buf, size_t size,
+ const struct lyd_node *dnode,
+ const char *xpath_fmt, ...)
+{
+ const char *canon;
+ size_t cannon_len;
+ size_t decode_len;
+ size_t ret_len;
+ size_t cnt;
+ char *value_str;
+ struct base64_decodestate s;
+
+ canon = YANG_DNODE_XPATH_GET_CANON(dnode, xpath_fmt);
+ cannon_len = strlen(canon);
+ decode_len = cannon_len + 1;
+ value_str = (char *)malloc(decode_len);
+ base64_init_decodestate(&s);
+ cnt = base64_decode_block(canon, cannon_len, value_str, &s);
+
+ ret_len = size > cnt ? cnt : size;
+ memcpy(buf, value_str, ret_len);
+ if (size < cnt) {
+ char xpath[XPATH_MAXLEN];
+
+ yang_dnode_get_path(dnode, xpath, sizeof(xpath));
+ flog_warn(EC_LIB_YANG_DATA_TRUNCATED,
+ "%s: value was truncated [xpath %s]", __func__,
+ xpath);
+ }
+ free(value_str);
+ return ret_len;
+}
+
+
+/*
+ * Primitive type: empty.
+ */
+struct yang_data *yang_data_new_empty(const char *xpath)
+{
+ return yang_data_new(xpath, NULL);
+}
+
+bool yang_dnode_get_empty(const struct lyd_node *dnode, const char *xpath_fmt,
+ ...)
+{
+ va_list ap;
+ char xpath[XPATH_MAXLEN];
+ const struct lyd_node_term *dleaf;
+
+ assert(dnode);
+
+ va_start(ap, xpath_fmt);
+ vsnprintf(xpath, sizeof(xpath), xpath_fmt, ap);
+ va_end(ap);
+
+ dnode = yang_dnode_get(dnode, xpath);
+ if (dnode) {
+ dleaf = (const struct lyd_node_term *)dnode;
+ if (dleaf->value.realtype->basetype == LY_TYPE_EMPTY)
+ return true;
+ }
+
+ return false;
+}
+
+/*
+ * Derived type: IP prefix.
+ */
+void yang_str2prefix(const char *value, union prefixptr prefix)
+{
+ (void)str2prefix(value, prefix.p);
+ apply_mask(prefix.p);
+}
+
+struct yang_data *yang_data_new_prefix(const char *xpath,
+ union prefixconstptr prefix)
+{
+ char value_str[PREFIX2STR_BUFFER];
+
+ (void)prefix2str(prefix.p, value_str, sizeof(value_str));
+ return yang_data_new(xpath, value_str);
+}
+
+void yang_dnode_get_prefix(struct prefix *prefix, const struct lyd_node *dnode,
+ const char *xpath_fmt, ...)
+{
+ const char *canon;
+ /*
+ * Initialize prefix to avoid static analyzer complaints about
+ * uninitialized memory.
+ */
+ memset(prefix, 0, sizeof(*prefix));
+
+ /* XXX ip_prefix is a native type now in ly2, leverage? */
+ canon = YANG_DNODE_XPATH_GET_CANON(dnode, xpath_fmt);
+ (void)str2prefix(canon, prefix);
+}
+
+void yang_get_default_prefix(union prefixptr var, const char *xpath_fmt, ...)
+{
+ char xpath[XPATH_MAXLEN];
+ const char *value;
+ va_list ap;
+
+ va_start(ap, xpath_fmt);
+ vsnprintf(xpath, sizeof(xpath), xpath_fmt, ap);
+ va_end(ap);
+
+ value = yang_get_default_value(xpath);
+ yang_str2prefix(value, var);
+}
+
+/*
+ * Derived type: ipv4.
+ */
+void yang_str2ipv4(const char *value, struct in_addr *addr)
+{
+ (void)inet_pton(AF_INET, value, addr);
+}
+
+struct yang_data *yang_data_new_ipv4(const char *xpath,
+ const struct in_addr *addr)
+{
+ char value_str[INET_ADDRSTRLEN];
+
+ (void)inet_ntop(AF_INET, addr, value_str, sizeof(value_str));
+ return yang_data_new(xpath, value_str);
+}
+
+void yang_dnode_get_ipv4(struct in_addr *addr, const struct lyd_node *dnode,
+ const char *xpath_fmt, ...)
+{
+ /* XXX libyang2 IPv4 address is a native type now in ly2 */
+ const char *canon = YANG_DNODE_XPATH_GET_CANON(dnode, xpath_fmt);
+ (void)inet_pton(AF_INET, canon, addr);
+}
+
+void yang_get_default_ipv4(struct in_addr *var, const char *xpath_fmt, ...)
+{
+ char xpath[XPATH_MAXLEN];
+ const char *value;
+ va_list ap;
+
+ va_start(ap, xpath_fmt);
+ vsnprintf(xpath, sizeof(xpath), xpath_fmt, ap);
+ va_end(ap);
+
+ value = yang_get_default_value(xpath);
+ yang_str2ipv4(value, var);
+}
+
+/*
+ * Derived type: ipv4p.
+ */
+void yang_str2ipv4p(const char *value, union prefixptr prefix)
+{
+ struct prefix_ipv4 *prefix4 = prefix.p4;
+
+ (void)str2prefix_ipv4(value, prefix4);
+ apply_mask_ipv4(prefix4);
+}
+
+struct yang_data *yang_data_new_ipv4p(const char *xpath,
+ union prefixconstptr prefix)
+{
+ char value_str[PREFIX2STR_BUFFER];
+
+ (void)prefix2str(prefix.p, value_str, sizeof(value_str));
+ return yang_data_new(xpath, value_str);
+}
+
+void yang_dnode_get_ipv4p(union prefixptr prefix, const struct lyd_node *dnode,
+ const char *xpath_fmt, ...)
+{
+ struct prefix_ipv4 *prefix4 = prefix.p4;
+ /* XXX libyang2: ipv4/6 address is a native type now in ly2 */
+ const char *canon = YANG_DNODE_XPATH_GET_CANON(dnode, xpath_fmt);
+ (void)str2prefix_ipv4(canon, prefix4);
+}
+
+void yang_get_default_ipv4p(union prefixptr var, const char *xpath_fmt, ...)
+{
+ char xpath[XPATH_MAXLEN];
+ const char *value;
+ va_list ap;
+
+ va_start(ap, xpath_fmt);
+ vsnprintf(xpath, sizeof(xpath), xpath_fmt, ap);
+ va_end(ap);
+
+ value = yang_get_default_value(xpath);
+ yang_str2ipv4p(value, var);
+}
+
+/*
+ * Derived type: ipv6.
+ */
+void yang_str2ipv6(const char *value, struct in6_addr *addr)
+{
+ (void)inet_pton(AF_INET6, value, addr);
+}
+
+struct yang_data *yang_data_new_ipv6(const char *xpath,
+ const struct in6_addr *addr)
+{
+ char value_str[INET6_ADDRSTRLEN];
+
+ (void)inet_ntop(AF_INET6, addr, value_str, sizeof(value_str));
+ return yang_data_new(xpath, value_str);
+}
+
+void yang_dnode_get_ipv6(struct in6_addr *addr, const struct lyd_node *dnode,
+ const char *xpath_fmt, ...)
+{
+ /* XXX libyang2: IPv6 address is a native type now, leverage. */
+ const char *canon = YANG_DNODE_XPATH_GET_CANON(dnode, xpath_fmt);
+ (void)inet_pton(AF_INET6, canon, addr);
+}
+
+void yang_get_default_ipv6(struct in6_addr *var, const char *xpath_fmt, ...)
+{
+ char xpath[XPATH_MAXLEN];
+ const char *value;
+ va_list ap;
+
+ va_start(ap, xpath_fmt);
+ vsnprintf(xpath, sizeof(xpath), xpath_fmt, ap);
+ va_end(ap);
+
+ value = yang_get_default_value(xpath);
+ yang_str2ipv6(value, var);
+}
+
+/*
+ * Derived type: ipv6p.
+ */
+void yang_str2ipv6p(const char *value, union prefixptr prefix)
+{
+ struct prefix_ipv6 *prefix6 = prefix.p6;
+
+ (void)str2prefix_ipv6(value, prefix6);
+ apply_mask_ipv6(prefix6);
+}
+
+struct yang_data *yang_data_new_ipv6p(const char *xpath,
+ union prefixconstptr prefix)
+{
+ char value_str[PREFIX2STR_BUFFER];
+
+ (void)prefix2str(prefix.p, value_str, sizeof(value_str));
+ return yang_data_new(xpath, value_str);
+}
+
+void yang_dnode_get_ipv6p(union prefixptr prefix, const struct lyd_node *dnode,
+ const char *xpath_fmt, ...)
+{
+ struct prefix_ipv6 *prefix6 = prefix.p6;
+
+ /* XXX IPv6 address is a native type now in ly2 -- can we leverage? */
+ const char *canon = YANG_DNODE_XPATH_GET_CANON(dnode, xpath_fmt);
+ (void)str2prefix_ipv6(canon, prefix6);
+}
+
+void yang_get_default_ipv6p(union prefixptr var, const char *xpath_fmt, ...)
+{
+ char xpath[XPATH_MAXLEN];
+ const char *value;
+ va_list ap;
+
+ va_start(ap, xpath_fmt);
+ vsnprintf(xpath, sizeof(xpath), xpath_fmt, ap);
+ va_end(ap);
+
+ value = yang_get_default_value(xpath);
+ yang_str2ipv6p(value, var);
+}
+
+/*
+ * Derived type: ip.
+ */
+void yang_str2ip(const char *value, struct ipaddr *ip)
+{
+ (void)str2ipaddr(value, ip);
+}
+
+struct yang_data *yang_data_new_ip(const char *xpath, const struct ipaddr *addr)
+{
+ size_t sz = IS_IPADDR_V4(addr) ? INET_ADDRSTRLEN : INET6_ADDRSTRLEN;
+ char value_str[sz];
+
+ ipaddr2str(addr, value_str, sizeof(value_str));
+ return yang_data_new(xpath, value_str);
+}
+
+void yang_dnode_get_ip(struct ipaddr *addr, const struct lyd_node *dnode,
+ const char *xpath_fmt, ...)
+{
+ /* XXX IPv4 address could be a plugin type now in ly2, leverage? */
+ const char *canon = YANG_DNODE_XPATH_GET_CANON(dnode, xpath_fmt);
+ (void)str2ipaddr(canon, addr);
+}
+
+void yang_get_default_ip(struct ipaddr *var, const char *xpath_fmt, ...)
+{
+ char xpath[XPATH_MAXLEN];
+ const char *value;
+ va_list ap;
+
+ va_start(ap, xpath_fmt);
+ vsnprintf(xpath, sizeof(xpath), xpath_fmt, ap);
+ va_end(ap);
+
+ value = yang_get_default_value(xpath);
+ yang_str2ip(value, var);
+}
+
+struct yang_data *yang_data_new_mac(const char *xpath,
+ const struct ethaddr *mac)
+{
+ char value_str[ETHER_ADDR_STRLEN];
+
+ prefix_mac2str(mac, value_str, sizeof(value_str));
+ return yang_data_new(xpath, value_str);
+}
+
+void yang_str2mac(const char *value, struct ethaddr *mac)
+{
+ (void)prefix_str2mac(value, mac);
+}
+
+struct yang_data *yang_data_new_date_and_time(const char *xpath, time_t time)
+{
+ struct tm tm;
+ char timebuf[MONOTIME_STRLEN];
+ struct timeval _time, time_real;
+ char *ts_dot;
+ uint16_t buflen;
+
+ _time.tv_sec = time;
+ _time.tv_usec = 0;
+ monotime_to_realtime(&_time, &time_real);
+
+ gmtime_r(&time_real.tv_sec, &tm);
+
+ /* rfc-3339 format */
+ strftime(timebuf, sizeof(timebuf), "%Y-%m-%dT%H:%M:%S", &tm);
+ buflen = strlen(timebuf);
+ ts_dot = timebuf + buflen;
+
+ /* microseconds and appends Z */
+ snprintfrr(ts_dot, sizeof(timebuf) - buflen, ".%06luZ",
+ (unsigned long)time_real.tv_usec);
+
+ return yang_data_new(xpath, timebuf);
+}
+
+const char *yang_nexthop_type2str(uint32_t ntype)
+{
+ switch (ntype) {
+ case NEXTHOP_TYPE_IFINDEX:
+ return "ifindex";
+ break;
+ case NEXTHOP_TYPE_IPV4:
+ return "ip4";
+ break;
+ case NEXTHOP_TYPE_IPV4_IFINDEX:
+ return "ip4-ifindex";
+ break;
+ case NEXTHOP_TYPE_IPV6:
+ return "ip6";
+ break;
+ case NEXTHOP_TYPE_IPV6_IFINDEX:
+ return "ip6-ifindex";
+ break;
+ case NEXTHOP_TYPE_BLACKHOLE:
+ return "blackhole";
+ break;
+ default:
+ return "unknown";
+ break;
+ }
+}
+
+
+const char *yang_afi_safi_value2identity(afi_t afi, safi_t safi)
+{
+ if (afi == AFI_IP && safi == SAFI_UNICAST)
+ return "frr-routing:ipv4-unicast";
+ if (afi == AFI_IP6 && safi == SAFI_UNICAST)
+ return "frr-routing:ipv6-unicast";
+ if (afi == AFI_IP && safi == SAFI_MULTICAST)
+ return "frr-routing:ipv4-multicast";
+ if (afi == AFI_IP6 && safi == SAFI_MULTICAST)
+ return "frr-routing:ipv6-multicast";
+ if (afi == AFI_IP && safi == SAFI_MPLS_VPN)
+ return "frr-routing:l3vpn-ipv4-unicast";
+ if (afi == AFI_IP6 && safi == SAFI_MPLS_VPN)
+ return "frr-routing:l3vpn-ipv6-unicast";
+ if (afi == AFI_L2VPN && safi == SAFI_EVPN)
+ return "frr-routing:l2vpn-evpn";
+ if (afi == AFI_IP && safi == SAFI_LABELED_UNICAST)
+ return "frr-routing:ipv4-labeled-unicast";
+ if (afi == AFI_IP6 && safi == SAFI_LABELED_UNICAST)
+ return "frr-routing:ipv6-labeled-unicast";
+ if (afi == AFI_IP && safi == SAFI_FLOWSPEC)
+ return "frr-routing:ipv4-flowspec";
+ if (afi == AFI_IP6 && safi == SAFI_FLOWSPEC)
+ return "frr-routing:ipv6-flowspec";
+
+ return NULL;
+}
+
+void yang_afi_safi_identity2value(const char *key, afi_t *afi, safi_t *safi)
+{
+ if (strmatch(key, "frr-routing:ipv4-unicast")) {
+ *afi = AFI_IP;
+ *safi = SAFI_UNICAST;
+ } else if (strmatch(key, "frr-routing:ipv6-unicast")) {
+ *afi = AFI_IP6;
+ *safi = SAFI_UNICAST;
+ } else if (strmatch(key, "frr-routing:ipv4-multicast")) {
+ *afi = AFI_IP;
+ *safi = SAFI_MULTICAST;
+ } else if (strmatch(key, "frr-routing:ipv6-multicast")) {
+ *afi = AFI_IP6;
+ *safi = SAFI_MULTICAST;
+ } else if (strmatch(key, "frr-routing:l3vpn-ipv4-unicast")) {
+ *afi = AFI_IP;
+ *safi = SAFI_MPLS_VPN;
+ } else if (strmatch(key, "frr-routing:l3vpn-ipv6-unicast")) {
+ *afi = AFI_IP6;
+ *safi = SAFI_MPLS_VPN;
+ } else if (strmatch(key, "frr-routing:ipv4-labeled-unicast")) {
+ *afi = AFI_IP;
+ *safi = SAFI_LABELED_UNICAST;
+ } else if (strmatch(key, "frr-routing:ipv6-labeled-unicast")) {
+ *afi = AFI_IP6;
+ *safi = SAFI_LABELED_UNICAST;
+ } else if (strmatch(key, "frr-routing:l2vpn-evpn")) {
+ *afi = AFI_L2VPN;
+ *safi = SAFI_EVPN;
+ } else if (strmatch(key, "frr-routing:ipv4-flowspec")) {
+ *afi = AFI_IP;
+ *safi = SAFI_FLOWSPEC;
+ } else if (strmatch(key, "frr-routing:ipv6-flowspec")) {
+ *afi = AFI_IP6;
+ *safi = SAFI_FLOWSPEC;
+ } else {
+ *afi = AFI_UNSPEC;
+ *safi = SAFI_UNSPEC;
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-04 10:32:31 +0000