diff options
Diffstat (limited to 'src/jansson.c')
| -rw-r--r-- | src/jansson.c | 279 |
1 files changed, 0 insertions, 279 deletions
diff --git a/src/jansson.c b/src/jansson.c deleted file mode 100644 index 3476ed2..0000000 --- a/src/jansson.c +++ /dev/null @@ -1,279 +0,0 @@ -/* - * (C) 2013 by Álvaro Neira Ayuso <alvaroneay@gmail.com> - * - * 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. - */ - -#include <internal.h> -#include <stdlib.h> -#include <limits.h> -#include <stdint.h> -#include <stdbool.h> -#include <arpa/inet.h> -#include <errno.h> -#include <string.h> -#include "expr_ops.h" -#include <libnftnl/set.h> - -#include <libnftnl/expr.h> -#include <linux/netfilter/nf_tables.h> - -#ifdef JSON_PARSING - -static int nftnl_jansson_load_int_node(json_t *root, const char *node_name, - json_int_t *val, struct nftnl_parse_err *err) -{ - json_t *node; - - node = json_object_get(root, node_name); - if (node == NULL) { - err->error = NFTNL_PARSE_EMISSINGNODE; - err->node_name = node_name; - errno = EINVAL; - return -1; - } - - if (!json_is_integer(node)) { - err->error = NFTNL_PARSE_EBADTYPE; - err->node_name = node_name; - errno = ERANGE; - return -1; - } - *val = json_integer_value(node); - - return 0; -} - -const char *nftnl_jansson_parse_str(json_t *root, const char *node_name, - struct nftnl_parse_err *err) -{ - json_t *node; - const char *val; - - node = json_object_get(root, node_name); - if (node == NULL) { - err->error = NFTNL_PARSE_EMISSINGNODE; - err->node_name = node_name; - errno = EINVAL; - return NULL; - } - - val = json_string_value(node); - if (val == NULL) { - err->error = NFTNL_PARSE_EBADTYPE; - err->node_name = node_name; - } - - return val; -} - -int nftnl_jansson_parse_val(json_t *root, const char *node_name, int type, - void *out, struct nftnl_parse_err *err) -{ - json_int_t val; - - if (nftnl_jansson_load_int_node(root, node_name, &val, err) == -1) - return -1; - - if (nftnl_get_value(type, &val, out) == -1) - return -1; - - return 0; -} - -bool nftnl_jansson_node_exist(json_t *root, const char *node_name) -{ - return json_object_get(root, node_name) != NULL; -} - -json_t *nftnl_jansson_create_root(const void *json, json_error_t *error, - struct nftnl_parse_err *err, enum nftnl_parse_input input) -{ - json_t *root; - - switch (input) { - case NFTNL_PARSE_BUFFER: - root = json_loadb(json, strlen(json), 0, error); - break; - case NFTNL_PARSE_FILE: - root = json_loadf((FILE *)json, 0, error); - break; - default: - goto err; - } - - if (root == NULL) { - err->error = NFTNL_PARSE_EBADINPUT; - err->line = error->line; - err->column = error->column; - err->node_name = error->source; - goto err; - } - - return root; -err: - errno = EINVAL; - return NULL; -} - -json_t *nftnl_jansson_get_node(json_t *root, const char *node_name, - struct nftnl_parse_err *err) -{ - json_t *node; - - node = json_object_get(root, node_name); - if (node == NULL) { - err->error = NFTNL_PARSE_EMISSINGNODE; - err->node_name = node_name; - errno = EINVAL; - return NULL; - } - - return node; -} - -void nftnl_jansson_free_root(json_t *root) -{ - json_decref(root); -} - -int nftnl_jansson_parse_family(json_t *root, void *out, struct nftnl_parse_err *err) -{ - const char *str; - int family; - - str = nftnl_jansson_parse_str(root, "family", err); - if (str == NULL) - return -1; - - family = nftnl_str2family(str); - if (family < 0) { - err->node_name = "family"; - errno = EINVAL; - return -1; - } - - memcpy(out, &family, sizeof(family)); - return 0; -} - -int nftnl_jansson_parse_reg(json_t *root, const char *node_name, int type, - void *out, struct nftnl_parse_err *err) -{ - if (nftnl_jansson_parse_val(root, node_name, type, out, err) < 0) - return -1; - - if (*((uint32_t *)out) > NFT_REG_MAX){ - errno = ERANGE; - return -1; - } - - return 0; -} - -int nftnl_jansson_str2num(json_t *root, const char *node_name, int base, - void *out, enum nftnl_type type, struct nftnl_parse_err *err) -{ - const char *str; - - str = nftnl_jansson_parse_str(root, node_name, err); - if (str == NULL) - return -1; - - return nftnl_strtoi(str, base, out, type); -} - -struct nftnl_expr *nftnl_jansson_expr_parse(json_t *root, - struct nftnl_parse_err *err, - struct nftnl_set_list *set_list) -{ - struct nftnl_expr *e; - const char *type; - uint32_t set_id; - int ret; - - type = nftnl_jansson_parse_str(root, "type", err); - if (type == NULL) - return NULL; - - e = nftnl_expr_alloc(type); - if (e == NULL) { - err->node_name = "type"; - return NULL; - } - - ret = e->ops->json_parse(e, root, err); - - if (set_list != NULL && - strcmp(type, "lookup") == 0 && - nftnl_set_lookup_id(e, set_list, &set_id)) - nftnl_expr_set_u32(e, NFTNL_EXPR_LOOKUP_SET_ID, set_id); - - return ret < 0 ? NULL : e; -} - -int nftnl_jansson_data_reg_parse(json_t *root, const char *node_name, - union nftnl_data_reg *data_reg, - struct nftnl_parse_err *err) -{ - json_t *data; - int ret; - - /* It is necessary for the compatibility with cmpdata label. */ - data = json_object_get(root, node_name); - if (data == NULL) - data = root; - - data = json_object_get(data, "reg"); - if (data == NULL) { - err->error = NFTNL_PARSE_EMISSINGNODE; - err->node_name = "reg"; - errno = EINVAL; - return -1; - } - - ret = nftnl_data_reg_json_parse(data_reg, data, err); - if (ret == DATA_NONE) { - errno = EINVAL; - return -1; - } - - return ret; -} - -int nftnl_jansson_set_elem_parse(struct nftnl_set_elem *e, json_t *root, - struct nftnl_parse_err *err) -{ - int set_elem_data; - uint32_t flags; - - if (nftnl_jansson_parse_val(root, "flags", NFTNL_TYPE_U32, &flags, err) == 0) - nftnl_set_elem_set_u32(e, NFTNL_SET_ELEM_FLAGS, flags); - - if (nftnl_jansson_data_reg_parse(root, "key", &e->key, err) == DATA_VALUE) - e->flags |= (1 << NFTNL_SET_ELEM_KEY); - - if (nftnl_jansson_node_exist(root, "data")) { - set_elem_data = nftnl_jansson_data_reg_parse(root, "data", - &e->data, err); - switch (set_elem_data) { - case DATA_VALUE: - e->flags |= (1 << NFTNL_SET_ELEM_DATA); - break; - case DATA_VERDICT: - e->flags |= (1 << NFTNL_SET_ELEM_VERDICT); - if (e->data.chain != NULL) - e->flags |= (1 << NFTNL_SET_ELEM_CHAIN); - break; - case DATA_NONE: - default: - return -1; - } - } - - return 0; -} -#endif |