diff options
Diffstat (limited to 'include/libnftnl/chain.h')
| -rw-r--r-- | include/libnftnl/chain.h | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/include/libnftnl/chain.h b/include/libnftnl/chain.h new file mode 100644 index 0000000..f56e581 --- /dev/null +++ b/include/libnftnl/chain.h @@ -0,0 +1,117 @@ +#ifndef _LIBNFTNL_CHAIN_H_ +#define _LIBNFTNL_CHAIN_H_ + +#include <stdio.h> +#include <stdint.h> +#include <stdbool.h> +#include <sys/types.h> + +#include <libnftnl/common.h> + +#ifdef __cplusplus +extern "C" { +#endif + +struct nftnl_chain; +struct nftnl_rule; + +struct nftnl_chain *nftnl_chain_alloc(void); +void nftnl_chain_free(const struct nftnl_chain *); + +enum nftnl_chain_attr { + NFTNL_CHAIN_NAME = 0, + NFTNL_CHAIN_FAMILY, + NFTNL_CHAIN_TABLE, + NFTNL_CHAIN_HOOKNUM, + NFTNL_CHAIN_PRIO = 4, + NFTNL_CHAIN_POLICY, + NFTNL_CHAIN_USE, + NFTNL_CHAIN_BYTES, + NFTNL_CHAIN_PACKETS = 8, + NFTNL_CHAIN_HANDLE, + NFTNL_CHAIN_TYPE, + NFTNL_CHAIN_DEV, + NFTNL_CHAIN_DEVICES, + NFTNL_CHAIN_FLAGS, + NFTNL_CHAIN_ID, + NFTNL_CHAIN_USERDATA, + __NFTNL_CHAIN_MAX +}; +#define NFTNL_CHAIN_MAX (__NFTNL_CHAIN_MAX - 1) + +bool nftnl_chain_is_set(const struct nftnl_chain *c, uint16_t attr); +void nftnl_chain_unset(struct nftnl_chain *c, uint16_t attr); +void nftnl_chain_set(struct nftnl_chain *t, uint16_t attr, const void *data) __attribute__((deprecated)); +int nftnl_chain_set_data(struct nftnl_chain *t, uint16_t attr, + const void *data, uint32_t data_len); +void nftnl_chain_set_u8(struct nftnl_chain *t, uint16_t attr, uint8_t data); +void nftnl_chain_set_u32(struct nftnl_chain *t, uint16_t attr, uint32_t data); +void nftnl_chain_set_s32(struct nftnl_chain *t, uint16_t attr, int32_t data); +void nftnl_chain_set_u64(struct nftnl_chain *t, uint16_t attr, uint64_t data); +int nftnl_chain_set_str(struct nftnl_chain *t, uint16_t attr, const char *str); +int nftnl_chain_set_array(struct nftnl_chain *t, uint16_t attr, const char **data); + +const void *nftnl_chain_get(const struct nftnl_chain *c, uint16_t attr); +const void *nftnl_chain_get_data(const struct nftnl_chain *c, uint16_t attr, + uint32_t *data_len); +const char *nftnl_chain_get_str(const struct nftnl_chain *c, uint16_t attr); +uint8_t nftnl_chain_get_u8(const struct nftnl_chain *c, uint16_t attr); +uint32_t nftnl_chain_get_u32(const struct nftnl_chain *c, uint16_t attr); +int32_t nftnl_chain_get_s32(const struct nftnl_chain *c, uint16_t attr); +uint64_t nftnl_chain_get_u64(const struct nftnl_chain *c, uint16_t attr); +const char *const *nftnl_chain_get_array(const struct nftnl_chain *c, uint16_t attr); + +void nftnl_chain_rule_add(struct nftnl_rule *rule, struct nftnl_chain *c); +void nftnl_chain_rule_del(struct nftnl_rule *rule); +void nftnl_chain_rule_add_tail(struct nftnl_rule *rule, struct nftnl_chain *c); +void nftnl_chain_rule_insert_at(struct nftnl_rule *rule, struct nftnl_rule *pos); +void nftnl_chain_rule_append_at(struct nftnl_rule *rule, struct nftnl_rule *pos); + +struct nlmsghdr; + +void nftnl_chain_nlmsg_build_payload(struct nlmsghdr *nlh, const struct nftnl_chain *t); + +int nftnl_chain_parse(struct nftnl_chain *c, enum nftnl_parse_type type, + const char *data, struct nftnl_parse_err *err); +int nftnl_chain_parse_file(struct nftnl_chain *c, enum nftnl_parse_type type, + FILE *fp, struct nftnl_parse_err *err); +int nftnl_chain_snprintf(char *buf, size_t size, const struct nftnl_chain *t, uint32_t type, uint32_t flags); +int nftnl_chain_fprintf(FILE *fp, const struct nftnl_chain *c, uint32_t type, uint32_t flags); + +#define nftnl_chain_nlmsg_build_hdr nftnl_nlmsg_build_hdr +int nftnl_chain_nlmsg_parse(const struct nlmsghdr *nlh, struct nftnl_chain *t); + +int nftnl_rule_foreach(struct nftnl_chain *c, + int (*cb)(struct nftnl_rule *r, void *data), + void *data); +struct nftnl_rule *nftnl_rule_lookup_byindex(struct nftnl_chain *c, uint32_t index); + +struct nftnl_rule_iter; + +struct nftnl_rule_iter *nftnl_rule_iter_create(const struct nftnl_chain *c); +struct nftnl_rule *nftnl_rule_iter_next(struct nftnl_rule_iter *iter); +void nftnl_rule_iter_destroy(struct nftnl_rule_iter *iter); + +struct nftnl_chain_list; + +struct nftnl_chain_list *nftnl_chain_list_alloc(void); +void nftnl_chain_list_free(struct nftnl_chain_list *list); +int nftnl_chain_list_is_empty(const struct nftnl_chain_list *list); +int nftnl_chain_list_foreach(struct nftnl_chain_list *chain_list, int (*cb)(struct nftnl_chain *t, void *data), void *data); +struct nftnl_chain *nftnl_chain_list_lookup_byname(struct nftnl_chain_list *chain_list, const char *chain); + +void nftnl_chain_list_add(struct nftnl_chain *r, struct nftnl_chain_list *list); +void nftnl_chain_list_add_tail(struct nftnl_chain *r, struct nftnl_chain_list *list); +void nftnl_chain_list_del(struct nftnl_chain *c); + +struct nftnl_chain_list_iter; + +struct nftnl_chain_list_iter *nftnl_chain_list_iter_create(const struct nftnl_chain_list *l); +struct nftnl_chain *nftnl_chain_list_iter_next(struct nftnl_chain_list_iter *iter); +void nftnl_chain_list_iter_destroy(struct nftnl_chain_list_iter *iter); + +#ifdef __cplusplus +} /* extern "C" */ +#endif + +#endif /* _LIBNFTNL_CHAIN_H_ */ |