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netfilter
firewalling, NAT, and packet mangling for linux
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netfilter
firewalling, NAT, and packet mangling for linux
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#include <stdlib.h>#include <stdbool.h>#include <string.h>#include <errno.h>#include <assert.h>#include "internal/internal.h"
Macros | |
| #define | __CP_ORIG_MAX sizeof(cp_orig_mask)/sizeof(int) |
| #define | __CP_REPL_MAX sizeof(cp_repl_mask)/sizeof(int) |
Functions | |
| struct nf_conntrack * | nfct_new (void) |
| nfct_conntrack_new - allocate a new conntrack More... | |
| void | nfct_destroy (struct nf_conntrack *ct) |
| nf_conntrack_destroy - release a conntrack object More... | |
| size_t | nfct_sizeof (const struct nf_conntrack *ct) |
| nf_sizeof - return the size in bytes of a certain conntrack object More... | |
| size_t | nfct_maxsize (void) |
| nfct_maxsize - return the maximum size in bytes of a conntrack object More... | |
| struct nf_conntrack * | nfct_clone (const struct nf_conntrack *ct) |
| nfct_clone - clone a conntrack object More... | |
| int | nfct_setobjopt (struct nf_conntrack *ct, unsigned int option) |
| nfct_setobjopt - set a certain option for a conntrack object More... | |
| int | nfct_getobjopt (const struct nf_conntrack *ct, unsigned int option) |
| nfct_getobjopt - get a certain option for a conntrack object More... | |
| int | nfct_callback_register (struct nfct_handle *h, enum nf_conntrack_msg_type type, int(*cb)(enum nf_conntrack_msg_type type, struct nf_conntrack *ct, void *data), void *data) |
| nf_callback_register - register a callback More... | |
| void | nfct_callback_unregister (struct nfct_handle *h) |
| nfct_callback_unregister - unregister a callback More... | |
| int | nfct_callback_register2 (struct nfct_handle *h, enum nf_conntrack_msg_type type, int(*cb)(const struct nlmsghdr *nlh, enum nf_conntrack_msg_type type, struct nf_conntrack *ct, void *data), void *data) |
| nf_callback_register2 - register a callback More... | |
| void | nfct_callback_unregister2 (struct nfct_handle *h) |
| nfct_callback_unregister2 - unregister a callback More... | |
| void | nfct_set_attr_l (struct nf_conntrack *ct, const enum nf_conntrack_attr type, const void *value, size_t len) |
| nfct_set_attr_l - set the value of a certain conntrack attribute More... | |
| void | nfct_set_attr (struct nf_conntrack *ct, const enum nf_conntrack_attr type, const void *value) |
| nfct_set_attr - set the value of a certain conntrack attribute More... | |
| void | nfct_set_attr_u8 (struct nf_conntrack *ct, const enum nf_conntrack_attr type, u_int8_t value) |
| nfct_set_attr_u8 - set the value of a certain conntrack attribute More... | |
| void | nfct_set_attr_u16 (struct nf_conntrack *ct, const enum nf_conntrack_attr type, u_int16_t value) |
| nfct_set_attr_u16 - set the value of a certain conntrack attribute More... | |
| void | nfct_set_attr_u32 (struct nf_conntrack *ct, const enum nf_conntrack_attr type, u_int32_t value) |
| nfct_set_attr_u32 - set the value of a certain conntrack attribute More... | |
| void | nfct_set_attr_u64 (struct nf_conntrack *ct, const enum nf_conntrack_attr type, u_int64_t value) |
| nfct_set_attr_u64 - set the value of a certain conntrack attribute More... | |
| const void * | nfct_get_attr (const struct nf_conntrack *ct, const enum nf_conntrack_attr type) |
| nfct_get_attr - get a conntrack attribute More... | |
| u_int8_t | nfct_get_attr_u8 (const struct nf_conntrack *ct, const enum nf_conntrack_attr type) |
| nfct_get_attr_u8 - get attribute of unsigned 8-bits long More... | |
| u_int16_t | nfct_get_attr_u16 (const struct nf_conntrack *ct, const enum nf_conntrack_attr type) |
| nfct_get_attr_u16 - get attribute of unsigned 16-bits long More... | |
| u_int32_t | nfct_get_attr_u32 (const struct nf_conntrack *ct, const enum nf_conntrack_attr type) |
| nfct_get_attr_u32 - get attribute of unsigned 32-bits long More... | |
| u_int64_t | nfct_get_attr_u64 (const struct nf_conntrack *ct, const enum nf_conntrack_attr type) |
| nfct_get_attr_u64 - get attribute of unsigned 32-bits long More... | |
| int | nfct_attr_is_set (const struct nf_conntrack *ct, const enum nf_conntrack_attr type) |
| nfct_attr_is_set - check if a certain attribute is set More... | |
| int | nfct_attr_is_set_array (const struct nf_conntrack *ct, const enum nf_conntrack_attr *type_array, int size) |
| nfct_attr_is_set_array - check if an array of attribute types is set More... | |
| int | nfct_attr_unset (struct nf_conntrack *ct, const enum nf_conntrack_attr type) |
| nfct_attr_unset - unset a certain attribute More... | |
| void | nfct_set_attr_grp (struct nf_conntrack *ct, const enum nf_conntrack_attr_grp type, const void *data) |
| nfct_set_attr_grp - set a group of attributes More... | |
| int | nfct_get_attr_grp (const struct nf_conntrack *ct, const enum nf_conntrack_attr_grp type, void *data) |
| nfct_get_attr_grp - get an attribute group More... | |
| int | nfct_attr_grp_is_set (const struct nf_conntrack *ct, const enum nf_conntrack_attr_grp type) |
| nfct_attr_grp_is_set - check if an attribute group is set More... | |
| int | nfct_attr_grp_unset (struct nf_conntrack *ct, const enum nf_conntrack_attr_grp type) |
| nfct_attr_grp_unset - unset an attribute group More... | |
| int | nfct_build_conntrack (struct nfnl_subsys_handle *ssh, void *req, size_t size, u_int16_t type, u_int16_t flags, const struct nf_conntrack *ct) |
| nfct_build_conntrack - build a netlink message from a conntrack object More... | |
| int | nfct_build_query (struct nfnl_subsys_handle *ssh, const enum nf_conntrack_query qt, const void *data, void *buffer, unsigned int size) |
| nfct_build_query - build a query in netlink message format for ctnetlink More... | |
| int | nfct_parse_conntrack (enum nf_conntrack_msg_type type, const struct nlmsghdr *nlh, struct nf_conntrack *ct) |
| nfct_parse_conntrack - translate a netlink message to a conntrack object More... | |
| int | nfct_query (struct nfct_handle *h, const enum nf_conntrack_query qt, const void *data) |
| nfct_query - send a query to ctnetlink and handle the reply More... | |
| int | nfct_send (struct nfct_handle *h, const enum nf_conntrack_query qt, const void *data) |
| nfct_send - send a query to ctnetlink More... | |
| int | nfct_catch (struct nfct_handle *h) |
| nfct_catch - catch events More... | |
| int | nfct_snprintf (char *buf, unsigned int size, const struct nf_conntrack *ct, unsigned int msg_type, unsigned int out_type, unsigned int flags) |
| nfct_snprintf - print a conntrack object to a buffer More... | |
| int | nfct_snprintf_labels (char *buf, unsigned int size, const struct nf_conntrack *ct, unsigned int msg_type, unsigned int out_type, unsigned int flags, struct nfct_labelmap *map) |
| nfct_snprintf_labels - print a bitmask object to a buffer including labels More... | |
| int | nfct_compare (const struct nf_conntrack *ct1, const struct nf_conntrack *ct2) |
| nfct_compare - compare two conntrack objects More... | |
| int | nfct_cmp (const struct nf_conntrack *ct1, const struct nf_conntrack *ct2, unsigned int flags) |
| nfct_cmp - compare two conntrack objects More... | |
| void | nfct_copy (struct nf_conntrack *ct1, const struct nf_conntrack *ct2, unsigned int flags) |
| nfct_copy - copy part of one source object to another More... | |
| void | nfct_copy_attr (struct nf_conntrack *ct1, const struct nf_conntrack *ct2, const enum nf_conntrack_attr type) |
| nfct_copy_attr - copy an attribute of one source object to another More... | |
| struct nfct_filter * | nfct_filter_create (void) |
| nfct_filter_create - create a filter More... | |
| void | nfct_filter_destroy (struct nfct_filter *filter) |
| nfct_filter_destroy - destroy a filter More... | |
| void | nfct_filter_add_attr (struct nfct_filter *filter, const enum nfct_filter_attr type, const void *value) |
| nfct_filter_add_attr - add a filter attribute of the filter object More... | |
| void | nfct_filter_add_attr_u32 (struct nfct_filter *filter, const enum nfct_filter_attr type, u_int32_t value) |
| nfct_filter_add_attr_u32 - add an u32 filter attribute of the filter object More... | |
| int | nfct_filter_set_logic (struct nfct_filter *filter, const enum nfct_filter_attr type, const enum nfct_filter_logic logic) |
| nfct_filter_set_logic - set the filter logic for an attribute type More... | |
| int | nfct_filter_attach (int fd, struct nfct_filter *filter) |
| nfct_filter_attach - attach a filter to a socket descriptor More... | |
| int | nfct_filter_detach (int fd) |
| nfct_filter_detach - detach an existing filter More... | |
| struct nfct_filter_dump * | nfct_filter_dump_create (void) |
| nfct_filter_dump_create - create a dump filter More... | |
| void | nfct_filter_dump_destroy (struct nfct_filter_dump *filter) |
| nfct_filter_dump_destroy - destroy a dump filter More... | |
| void | nfct_filter_dump_set_attr (struct nfct_filter_dump *filter_dump, const enum nfct_filter_dump_attr type, const void *value) |
| nfct_filter_dump_attr_set - set filter attribute More... | |
| void | nfct_filter_dump_set_attr_u8 (struct nfct_filter_dump *filter_dump, const enum nfct_filter_dump_attr type, u_int8_t value) |
| nfct_filter_dump_attr_set_u8 - set u8 dump filter attribute More... | |
| const char * | nfct_labelmap_get_name (struct nfct_labelmap *m, unsigned int bit) |
| nfct_labelmap_get_name - get name of the label bit More... | |
| int | nfct_labelmap_get_bit (struct nfct_labelmap *m, const char *name) |
| nfct_labelmap_get_bit - get bit associated with the name More... | |
| struct nfct_labelmap * | nfct_labelmap_new (const char *mapfile) |
| nfct_labelmap_new - create a new label map More... | |
| void | nfct_labelmap_destroy (struct nfct_labelmap *map) |
| nfct_labelmap_destroy - destroy nfct_labelmap object More... | |
| struct nfct_bitmask * | nfct_bitmask_new (unsigned int max) |
| nfct_bitmask_new - allocate a new bitmask More... | |
| struct nfct_bitmask * | nfct_bitmask_clone (const struct nfct_bitmask *b) |
| void | nfct_bitmask_set_bit (struct nfct_bitmask *b, unsigned int bit) |
| int | nfct_bitmask_test_bit (const struct nfct_bitmask *b, unsigned int bit) |
| void | nfct_bitmask_unset_bit (struct nfct_bitmask *b, unsigned int bit) |
| unsigned int | nfct_bitmask_maxbit (const struct nfct_bitmask *b) |
| void | nfct_bitmask_destroy (struct nfct_bitmask *b) |
| void | nfct_bitmask_clear (struct nfct_bitmask *b) |
| bool | nfct_bitmask_equal (const struct nfct_bitmask *b1, const struct nfct_bitmask *b2) |
| #define __CP_ORIG_MAX sizeof(cp_orig_mask)/sizeof(int) |
Referenced by nfct_copy().
| #define __CP_REPL_MAX sizeof(cp_repl_mask)/sizeof(int) |
Referenced by nfct_copy().
| void nfct_bitmask_clear | ( | struct nfct_bitmask * | b | ) |
References nfct_bitmask::bits, bytes, and nfct_bitmask::words.
| struct nfct_bitmask* nfct_bitmask_clone | ( | const struct nfct_bitmask * | b | ) |
References nfct_bitmask::bits, bytes, and nfct_bitmask::words.
| void nfct_bitmask_destroy | ( | struct nfct_bitmask * | b | ) |
| bool nfct_bitmask_equal | ( | const struct nfct_bitmask * | b1, |
| const struct nfct_bitmask * | b2 | ||
| ) |
References nfct_bitmask::bits, and nfct_bitmask::words.
| unsigned int nfct_bitmask_maxbit | ( | const struct nfct_bitmask * | b | ) |
References nfct_bitmask::words.
Referenced by __snprintf_connlabels().
| struct nfct_bitmask* nfct_bitmask_new | ( | unsigned int | max | ) |
nfct_bitmask_new - allocate a new bitmask
| max | highest valid bit that can be set/unset. |
In case of success, this function returns a valid pointer to a memory blob, otherwise NULL is returned and errno is set appropiately.
References nfct_bitmask::bits, bytes, DIV_ROUND_UP, NULL, and nfct_bitmask::words.
Referenced by main().
| void nfct_bitmask_set_bit | ( | struct nfct_bitmask * | b, |
| unsigned int | bit | ||
| ) |
References nfct_bitmask::bits, and nfct_bitmask::words.
| int nfct_bitmask_test_bit | ( | const struct nfct_bitmask * | b, |
| unsigned int | bit | ||
| ) |
References nfct_bitmask::bits, and nfct_bitmask::words.
Referenced by __snprintf_connlabels().
| void nfct_bitmask_unset_bit | ( | struct nfct_bitmask * | b, |
| unsigned int | bit | ||
| ) |
References nfct_bitmask::bits, and nfct_bitmask::words.
1.8.8 