Libnet exported function prototypes
libnet_t * libnet_init (int injection_type, const char *device, char *err_buf)
void libnet_destroy (libnet_t *l)
void libnet_clear_packet (libnet_t *l)
void libnet_stats (libnet_t *l, struct libnet_stats *ls)
int libnet_getfd (libnet_t *l)
const char * libnet_getdevice (libnet_t *l)
uint8_t * libnet_getpbuf (libnet_t *l, libnet_ptag_t ptag)
uint32_t libnet_getpbuf_size (libnet_t *l, libnet_ptag_t ptag)
char * libnet_geterror (libnet_t *l)
uint32_t libnet_getpacket_size (libnet_t *l)
int libnet_seed_prand (libnet_t *l)
uint32_t libnet_get_prand (int mod)
int libnet_toggle_checksum (libnet_t *l, libnet_ptag_t ptag, int mode)
char * libnet_addr2name4 (uint32_t in, uint8_t use_name)
uint32_t libnet_name2addr4 (libnet_t *l, char *host_name, uint8_t use_name)
int libnet_in6_is_error (struct libnet_in6_addr addr)
struct libnet_in6_addr libnet_name2addr6 (libnet_t *l, const char *host_name, uint8_t use_name)
void libnet_addr2name6_r (struct libnet_in6_addr addr, uint8_t use_name, char *host_name, int host_name_len)
int libnet_plist_chain_new (libnet_t *l, libnet_plist_t **plist, char *token_list)
int libnet_plist_chain_next_pair (libnet_plist_t *plist, uint16_t *bport, uint16_t *eport)
int libnet_plist_chain_dump (libnet_plist_t *plist)
char * libnet_plist_chain_dump_string (libnet_plist_t *plist)
int libnet_plist_chain_free (libnet_plist_t *plist)
libnet_ptag_t libnet_build_802_1q (const uint8_t *dst, const uint8_t *src, uint16_t tpi, uint8_t priority, uint8_t cfi, uint16_t vlan_id, uint16_t len_proto, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_802_1x (uint8_t eap_ver, uint8_t eap_type, uint16_t length, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_802_2 (uint8_t dsap, uint8_t ssap, uint8_t control, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_802_2snap (uint8_t dsap, uint8_t ssap, uint8_t control, uint8_t *oui, uint16_t type, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_802_3 (const uint8_t *dst, const uint8_t *src, uint16_t len, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_ethernet (const uint8_t *dst, const uint8_t *src, uint16_t type, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_autobuild_ethernet (const uint8_t *dst, uint16_t type, libnet_t *l)
libnet_ptag_t libnet_build_fddi (uint8_t fc, const uint8_t *dst, const uint8_t *src, uint8_t dsap, uint8_t ssap, uint8_t cf, const uint8_t *oui, uint16_t type, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_autobuild_fddi (uint8_t fc, const uint8_t *dst, uint8_t dsap, uint8_t ssap, uint8_t cf, const uint8_t *oui, uint16_t type, libnet_t *l)
libnet_ptag_t libnet_build_arp (uint16_t hrd, uint16_t pro, uint8_t hln, uint8_t pln, uint16_t op, const uint8_t *sha, const uint8_t *spa, const uint8_t *tha, const uint8_t *tpa, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_autobuild_arp (uint16_t op, const uint8_t *sha, const uint8_t *spa, const uint8_t *tha, uint8_t *tpa, libnet_t *l)
libnet_ptag_t libnet_build_tcp (uint16_t sp, uint16_t dp, uint32_t seq, uint32_t ack, uint8_t control, uint16_t win, uint16_t sum, uint16_t urg, uint16_t len, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_tcp_options (const uint8_t *options, uint32_t options_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_udp (uint16_t sp, uint16_t dp, uint16_t len, uint16_t sum, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_cdp (uint8_t version, uint8_t ttl, uint16_t sum, uint16_t type, uint16_t value_s, const uint8_t *value, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_icmpv4_echo (uint8_t type, uint8_t code, uint16_t sum, uint16_t id, uint16_t seq, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_icmpv4_mask (uint8_t type, uint8_t code, uint16_t sum, uint16_t id, uint16_t seq, uint32_t mask, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_icmpv4_unreach (uint8_t type, uint8_t code, uint16_t sum, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_icmpv4_redirect (uint8_t type, uint8_t code, uint16_t sum, uint32_t gateway, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_icmpv4_timeexceed (uint8_t type, uint8_t code, uint16_t sum, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_icmpv4_timestamp (uint8_t type, uint8_t code, uint16_t sum, uint16_t id, uint16_t seq, uint32_t otime, uint32_t rtime, uint32_t ttime, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_icmpv6_echo (uint8_t type, uint8_t code, uint16_t sum, uint16_t id, uint16_t seq, uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_icmpv6_unreach (uint8_t type, uint8_t code, uint16_t sum, uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_icmpv6_ndp_nsol (uint8_t type, uint8_t code, uint16_t sum, struct libnet_in6_addr target, uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_icmpv6_ndp_nadv (uint8_t type, uint8_t code, uint16_t sum, uint32_t flags, struct libnet_in6_addr target, uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_icmpv6_ndp_opt (uint8_t type, uint8_t *option, uint32_t option_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_igmp (uint8_t type, uint8_t reserved, uint16_t sum, uint32_t ip, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_ipv4 (uint16_t ip_len, uint8_t tos, uint16_t id, uint16_t frag, uint8_t ttl, uint8_t prot, uint16_t sum, uint32_t src, uint32_t dst, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_ipv4_options (const uint8_t *options, uint32_t options_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_autobuild_ipv4 (uint16_t len, uint8_t prot, uint32_t dst, libnet_t *l)
libnet_ptag_t libnet_build_ipv6 (uint8_t tc, uint32_t fl, uint16_t len, uint8_t nh, uint8_t hl, struct libnet_in6_addr src, struct libnet_in6_addr dst, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_ipv6_frag (uint8_t nh, uint8_t reserved, uint16_t frag, uint32_t id, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_ipv6_routing (uint8_t nh, uint8_t len, uint8_t rtype, uint8_t segments, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_ipv6_destopts (uint8_t nh, uint8_t len, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_ipv6_hbhopts (uint8_t nh, uint8_t len, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_autobuild_ipv6 (uint16_t len, uint8_t nh, struct libnet_in6_addr dst, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_isl (uint8_t *dhost, uint8_t type, uint8_t user, uint8_t *shost, uint16_t len, const uint8_t *snap, uint16_t vid, uint16_t portindex, uint16_t reserved, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_ipsec_esp_hdr (uint32_t spi, uint32_t seq, uint32_t iv, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_ipsec_esp_ftr (uint8_t len, uint8_t nh, int8_t *auth, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_ipsec_ah (uint8_t nh, uint8_t len, uint16_t res, uint32_t spi, uint32_t seq, uint32_t auth, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_dnsv4 (uint16_t h_len, uint16_t id, uint16_t flags, uint16_t num_q, uint16_t num_anws_rr, uint16_t num_auth_rr, uint16_t num_addi_rr, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_rip (uint8_t cmd, uint8_t version, uint16_t rd, uint16_t af, uint16_t rt, uint32_t addr, uint32_t mask, uint32_t next_hop, uint32_t metric, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_rpc_call (uint32_t rm, uint32_t xid, uint32_t prog_num, uint32_t prog_vers, uint32_t procedure, uint32_t cflavor, uint32_t clength, uint8_t *cdata, uint32_t vflavor, uint32_t vlength, const uint8_t *vdata, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_stp_conf (uint16_t id, uint8_t version, uint8_t bpdu_type, uint8_t flags, const uint8_t *root_id, uint32_t root_pc, const uint8_t *bridge_id, uint16_t port_id, uint16_t message_age, uint16_t max_age, uint16_t hello_time, uint16_t f_delay, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_stp_tcn (uint16_t id, uint8_t version, uint8_t bpdu_type, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_token_ring (uint8_t ac, uint8_t fc, const uint8_t *dst, const uint8_t *src, uint8_t dsap, uint8_t ssap, uint8_t cf, const uint8_t *oui, uint16_t type, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_autobuild_token_ring (uint8_t ac, uint8_t fc, const uint8_t *dst, uint8_t dsap, uint8_t ssap, uint8_t cf, const uint8_t *oui, uint16_t type, libnet_t *l)
libnet_ptag_t libnet_build_vrrp (uint8_t version, uint8_t type, uint8_t vrouter_id, uint8_t priority, uint8_t ip_count, uint8_t auth_type, uint8_t advert_int, uint16_t sum, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_mpls (uint32_t label, uint8_t experimental, uint8_t bos, uint8_t ttl, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_ntp (uint8_t leap_indicator, uint8_t version, uint8_t mode, uint8_t stratum, uint8_t poll, uint8_t precision, uint16_t delay_int, uint16_t delay_frac, uint16_t dispersion_int, uint16_t dispersion_frac, uint32_t reference_id, uint32_t ref_ts_int, uint32_t ref_ts_frac, uint32_t orig_ts_int, uint32_t orig_ts_frac, uint32_t rec_ts_int, uint32_t rec_ts_frac, uint32_t xmt_ts_int, uint32_t xmt_ts_frac, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_ospfv2 (uint16_t len, uint8_t type, uint32_t rtr_id, uint32_t area_id, uint16_t sum, uint16_t autype, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_ospfv2_hello (uint32_t netmask, uint16_t interval, uint8_t opts, uint8_t priority, uint dead_int, uint32_t des_rtr, uint32_t bkup_rtr, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_ospfv2_dbd (uint16_t dgram_len, uint8_t opts, uint8_t type, uint seqnum, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_ospfv2_lsr (uint type, uint lsid, uint32_t advrtr, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_ospfv2_lsu (uint num, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_ospfv2_lsa (uint16_t age, uint8_t opts, uint8_t type, uint lsid, uint32_t advrtr, uint seqnum, uint16_t sum, uint16_t len, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_ospfv2_lsa_rtr (uint16_t flags, uint16_t num, uint id, uint data, uint8_t type, uint8_t tos, uint16_t metric, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_ospfv2_lsa_net (uint32_t nmask, uint rtrid, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_ospfv2_lsa_sum (uint32_t nmask, uint metric, uint tos, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_ospfv2_lsa_as (uint32_t nmask, uint metric, uint32_t fwdaddr, uint tag, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_data (const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_dhcpv4 (uint8_t opcode, uint8_t htype, uint8_t hlen, uint8_t hopcount, uint32_t xid, uint16_t secs, uint16_t flags, uint32_t cip, uint32_t yip, uint32_t sip, uint32_t gip, const uint8_t *chaddr, const char *sname, const char *file, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_bootpv4 (uint8_t opcode, uint8_t htype, uint8_t hlen, uint8_t hopcount, uint32_t xid, uint16_t secs, uint16_t flags, uint32_t cip, uint32_t yip, uint32_t sip, uint32_t gip, const uint8_t *chaddr, const char *sname, const char *file, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
uint32_t libnet_getgre_length (uint16_t fv)
libnet_ptag_t libnet_build_gre (uint16_t fv, uint16_t type, uint16_t sum, uint16_t offset, uint32_t key, uint32_t seq, uint16_t len, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_egre (uint16_t fv, uint16_t type, uint16_t sum, uint16_t offset, uint32_t key, uint32_t seq, uint16_t len, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_gre_sre (uint16_t af, uint8_t offset, uint8_t length, uint8_t *routing, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_gre_last_sre (libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_bgp4_header (uint8_t marker[LIBNET_BGP4_MARKER_SIZE], uint16_t len, uint8_t type, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_bgp4_open (uint8_t version, uint16_t src_as, uint16_t hold_time, uint32_t bgp_id, uint8_t opt_len, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_bgp4_update (uint16_t unfeasible_rt_len, const uint8_t *withdrawn_rt, uint16_t total_path_attr_len, const uint8_t *path_attributes, uint16_t info_len, uint8_t *reachability_info, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_bgp4_notification (uint8_t err_code, uint8_t err_subcode, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_sebek (uint32_t magic, uint16_t version, uint16_t type, uint32_t counter, uint32_t time_sec, uint32_t time_usec, uint32_t pid, uint32_t uid, uint32_t fd, uint8_t cmd[SEBEK_CMD_LENGTH], uint32_t length, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_hsrp (uint8_t version, uint8_t opcode, uint8_t state, uint8_t hello_time, uint8_t hold_time, uint8_t priority, uint8_t group, uint8_t reserved, uint8_t authdata[HSRP_AUTHDATA_LENGTH], uint32_t virtual_ip, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_build_link (const uint8_t *dst, const uint8_t *src, const uint8_t *oui, uint16_t type, const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
libnet_ptag_t libnet_autobuild_link (const uint8_t *dst, const uint8_t *oui, uint16_t type, libnet_t *l)
int libnet_write (libnet_t *l)
uint32_t libnet_get_ipaddr4 (libnet_t *l)
struct libnet_in6_addr libnet_get_ipaddr6 (libnet_t *l)
struct libnet_ether_addr * libnet_get_hwaddr (libnet_t *l)
uint8_t * libnet_hex_aton (const char *s, int *len)
const char * libnet_version (void)
int libnet_adv_cull_packet (libnet_t *l, uint8_t **packet, uint32_t *packet_s)
int libnet_adv_cull_header (libnet_t *l, libnet_ptag_t ptag, uint8_t **header, uint32_t *header_s)
int libnet_adv_write_link (libnet_t *l, const uint8_t *packet, uint32_t packet_s)
int libnet_adv_write_raw_ipv4 (libnet_t *l, const uint8_t *packet, uint32_t packet_s)
void libnet_adv_free_packet (libnet_t *l, uint8_t *packet)
int libnet_cq_add (libnet_t *l, char *label)
libnet_t * libnet_cq_remove (libnet_t *l)
libnet_t * libnet_cq_remove_by_label (char *label)
const char * libnet_cq_getlabel (libnet_t *l)
libnet_t * libnet_cq_find_by_label (char *label)
void libnet_cq_destroy (void)
libnet_t * libnet_cq_head (void)
int libnet_cq_last (void)
libnet_t * libnet_cq_next (void)
uint32_t libnet_cq_size (void)
uint32_t libnet_cq_end_loop (void)
void libnet_diag_dump_context (libnet_t *l)
void libnet_diag_dump_pblock (libnet_t *l)
char * libnet_diag_dump_pblock_type (uint8_t type)
void libnet_diag_dump_hex (const uint8_t *packet, uint32_t len, int swap, FILE *stream)
int libnet_write_raw_ipv4 (libnet_t *l, const uint8_t *packet, uint32_t size)
int libnet_write_raw_ipv6 (libnet_t *l, const uint8_t *packet, uint32_t size)
int libnet_write_link (libnet_t *l, const uint8_t *packet, uint32_t size)
int libnet_open_raw4 (libnet_t *l)
int libnet_close_raw4 (libnet_t *l)
int libnet_open_raw6 (libnet_t *l)
int libnet_close_raw6 (libnet_t *l)
int libnet_select_device (libnet_t *l)
int libnet_open_link (libnet_t *l)
int libnet_close_link (libnet_t *l)
int libnet_do_checksum (libnet_t *l, uint8_t *iphdr, int protocol, int h_len)
int libnet_inet_checksum (libnet_t *l, uint8_t *iphdr, int protocol, int h_len, const uint8_t *beg, const uint8_t *end)
uint32_t libnet_compute_crc (uint8_t *buf, uint32_t len)
uint16_t libnet_ip_check (uint16_t *addr, int len)
int libnet_in_cksum (uint16_t *addr, int len)
libnet_pblock_t * libnet_pblock_probe (libnet_t *l, libnet_ptag_t ptag, uint32_t b_len, uint8_t type)
libnet_pblock_t * libnet_pblock_new (libnet_t *l, uint32_t b_len)
int libnet_pblock_swap (libnet_t *l, libnet_ptag_t ptag1, libnet_ptag_t ptag2)
int libnet_pblock_insert_before (libnet_t *l, libnet_ptag_t ptag1, libnet_ptag_t ptag2)
void libnet_pblock_delete (libnet_t *l, libnet_pblock_t *p)
libnet_ptag_t libnet_pblock_update (libnet_t *l, libnet_pblock_t *p, uint32_t h, uint8_t type)
libnet_pblock_t * libnet_pblock_find (libnet_t *l, libnet_ptag_t ptag)
int libnet_pblock_append (libnet_t *l, libnet_pblock_t *p, const void *buf, uint32_t len)
void libnet_pblock_setflags (libnet_pblock_t *p, uint8_t flags)
int libnet_pblock_p2p (uint8_t type)
int libnet_pblock_coalesce (libnet_t *l, uint8_t **packet, uint32_t *size)
int libnet_check_iface (libnet_t *l)
struct libnet_in6_addr in6addr_error
libnet exported function prototypes
Parameters:
in network byte ordered IPv4 address
use_name LIBNET_RESOLVE or LIBNET_DONT_RESOLVE
Returns:
a pointer to presentation format string
Parameters:
l pointer to a libnet context
ptag the ptag referencing the header to pull
header will contain the header
header_s will contain the header size
Returns:
1 on success, -1 on failure
Parameters:
l pointer to a libnet context
packet will contain the wire-ready packet
packet_s will contain the packet size
Returns:
1 on success, -1 on failure
Parameters:
l pointer to a libnet context
packet a pointer to the packet to free
Parameters:
l pointer to a libnet context
packet a pointer to the packet to inject
packet_s the size of the packet
Returns:
the number of bytes written, or -1 on failure
Parameters:
l pointer to a libnet context
packet a pointer to the packet to inject
packet_s the size of the packet
Returns:
the number of bytes written, or -1 on failure
Parameters:
op ARP operation type
sha sender's hardware address
spa sender's protocol address
tha target hardware address
tpa targer protocol address
l pointer to a libnet context
Returns:
protocol tag value on success, -1 on error
Parameters:
dst destination ethernet address
type upper layer protocol type
l pointer to a libnet context
Returns:
protocol tag value on success, -1 on error
Parameters:
fc class format and priority
dst destination fddi address
dsap destination service access point
ssap source service access point
cf cf
oui IEEE organizational code
type upper layer protocol
l pointer to a libnet context
Returns:
protocol tag value on success, -1 on error
Parameters:
len total length of the IP packet including all subsequent data
prot upper layer protocol
dst destination IPv4 address (little endian)
l pointer to a libnet context
Returns:
protocol tag value on success, -1 on error
Parameters:
len length
nh next header
dst destination IPv6 address
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
dst the destination MAC address
oui Organizationally Unique Identifier (unused for Ethernet)
type the upper layer protocol type
l pointer to a libnet context
Returns:
protocol tag value on success, -1 on error
Parameters:
ac access control
fc frame control
dst destination address
dsap destination service access point
ssap source service access point
cf control field
oui Organizationally Unique Identifier
type upper layer protocol type
l pointer to a libnet context
Returns:
protocol tag value on success, -1 on error
The core of libnet is the platform-independent packet-building functionality. These functions enable an application programmer to build protocol headers (and data) in a simple and consistent manner without having to worry (too much) about low-level network odds and ends. Each libnet_build() function builds a piece of a packet (generally a protocol header). While it is perfectly possible to build an entire, ready-to-transmit packet with a single call to a libnet_build() function, generally more than one builder-class function call is required to construct a full packet. A complete wire-ready packet generally consists of more than one piece. Every function that builds a protocol header takes a series of arguments roughly corresponding to the header values as they appear on the wire. This process is intuitive but often makes for functions with huge prototypes and large stack frames. One important thing to note is that you must call these functions in order, corresponding to how they should appear on the wire (from the highest protocol layer on down). This building process is intuitive; it approximates what happens in an operating system kernel. In other words, to build a Network Time Protocol (NTP) packet by using the link-layer interface, the application programmer would call the libnet_build() functions in the following order: 1. libnet_build_ntp() 2. libnet_build_udp() 3. libnet_build_ipv4() 4. libnet_build_ethernet() This ordering is essential for libnet 1.1.x to properly link together the packet internally (previous libnet versions did not have the requirement).
The payload interface specifies an optional way to include data directly after the protocol header in question. You can use this function for a variety of purposes, including the following:
Including additional or arbitrary protocol header information that is not available from a libnet interface
Including a packet payload (data segment)
Building another protocol header that is not available from a libnet interface To employ the interface, the application programmer should construct the i payload data and pass a const uint8_t * to this data and its size to the desired libnet_build() function. Libnet handles the rest.
It is important to note that some functions (notably the IPv6 builders) do use the payload interface to specify variable length but ostensibly non-optional data. See the individual libnet_build_ipv6*() functions for more information.
Libnet uses the protocol tag (ptag) to identify individual pieces of a packet after being created. A new ptag results every time a libnet_build() function with an empty (0) ptag argument completes successfully. This new ptag now refers to the packet piece just created. The application programmer's responsibility is to save this value if he or she plans to modify this particular portion later on in the program. If the application programmer needs to modify some portion of that particular packet piece again, he or she calls the same libnet_build() function specifying the saved ptag argument. Libnet then searches for that packet piece and modifies it rather than creating a new one. Upon failure for any reason, libnet_build() functions return -1; libnet_geterror() tells you why. Builds an IEEE 802.1q VLAN tagging header. Depending on the value of len_proto, the function wraps the 802.1q header inside either an IEEE 802.3 header or an RFC 894 Ethernet II (DIX) header (both resulting in an 18-byte frame). If len is 1500 or less, most receiving protocol stacks parse the frame as an IEEE 802.3 encapsulated frame. If len is one of the Ethernet type values, most protocol stacks parse the frame as an RFC 894 Ethernet II encapsulated frame. Note the length value is calculated without the 802.1q header of 18 bytes.
Parameters:
dst pointer to a six byte source ethernet address
src pointer to a six byte destination ethernet address
tpi tag protocol identifier
priority priority
cfi canonical format indicator
vlan_id vlan identifier
len_proto length (802.3) protocol (Ethernet II)
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
eap_ver the EAP version
eap_type the EAP type
length frame length
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
dsap destination service access point
ssap source service access point
control control field
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
dsap destination service access point
ssap source service access point
control control field
oui Organizationally Unique Identifier
type upper layer protocol
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
dst destination ethernet address
src source ethernet address
len frame length sans header
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
hrd hardware address format
pro protocol address format
hln hardware address length
pln protocol address length
op ARP operation type
sha sender's hardware address
spa sender's protocol address
tha target hardware address
tpa targer protocol address
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
marker a value the receiver can predict (if the message type is not BGP OPEN, or no authentication is used, these 16 bytes are normally set as all ones)
len total length of the BGP message, including the header
type type code of the message (OPEN, UPDATE, NOTIFICATION or KEEPALIVE)
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
err_code type of notification
err_subcode more specific information about the reported error.
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
version protocol version (should be set to 4)
src_as Autonomous System of the sender
hold_time used to compute the maximum allowed time between the receipt of KEEPALIVE, and/or UPDATE messages by the sender
bgp_id BGP identifier of the sender
opt_len total length of the optional parameters field in bytes
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
unfeasible_rt_len indicates the length of the (next) 'withdrawn routes' field in bytes
withdrawn_rt list of IP addresses prefixes for the routes that are being withdrawn; each IP address prefix is built as a 2-tuple <length (1 byte), prefix (variable)>
total_path_attr_len indicates the length of the (next) 'path attributes' field in bytes
path_attributes each attribute is a 3-tuple <type (2 bytes), length, value>
info_len indicates the length of the (next) 'network layer reachability information' field in bytes (needed for internal memory size calculation)
reachability_info 2-tuples <length (1 byte), prefix (variable)>.
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
opcode
htype
hlen
hopcount
xid
secs
flags
cip
yip
sip
gip
chaddr client hardware address, length is hlen
sname server host name, a null terminated string
file boot file name, a null terminated string
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
version CDP version
ttl time to live (time information should be cached by recipient)
sum checksum (0 for libnet to autofill)
type type of data contained in value
value_s length of value argument
value the CDP information string
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
opcode
htype
hlen
hopcount
xid
secs
flags
cip
yip
sip
gip
chaddr client hardware address, length is hlen
sname server host name, a null terminated string
file boot file name, a null terminated string
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
h_len
id DNS packet id
flags control flags
num_q number of questions
num_anws_rr number of answer resource records
num_auth_rr number of authority resource records
num_addi_rr number of additional resource records
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
header'. It is then followed by the GRE header and finally the encapsulated packet (IP or whatever). As GRE is very modular, the first GRE header describes the structure of the header, using bits and flag to specify which fields will be present in the header.
Parameters:
fv the 16 0 to 7: which fields are included in the header (checksum, seq. number, key, ...), bits 8 to 12: flag, bits 13 to 15: version.
type which protocol is encapsulated (PPP, IP, ...)
sum checksum (0 for libnet to autofill).
offset byte offset from the start of the routing field to the first byte of the SRE
key inserted by the encapsulator to authenticate the source
seq sequence number used by the receiver to sort the packets
len size of the GRE packet
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
dst destination ethernet address
src source ethernet address
type upper layer protocol type
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
fc class format and priority
dst destination fddi address
src source fddi address
dsap destination service access point
ssap source service access point
cf cf
oui 3 byte IEEE organizational code
type upper layer protocol
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
header'. It is then followed by the GRE header and finally the encapsulated packet (IP or whatever). As GRE is very modular, the first GRE header describes the structure of the header, using bits and flag to specify which fields will be present in the header.
Parameters:
fv the 16 0 to 7: which fields are included in the header (checksum, seq. number, key, ...), bits 8 to 12: flag, bits 13 to 15: version.
type which protocol is encapsulated (PPP, IP, ...)
sum checksum (0 for libnet to autofill).
offset byte offset from the start of the routing field to the first byte of the SRE
key inserted by the encapsulator to authenticate the source
seq sequence number used by the receiver to sort the packets
len size of the GRE packet
payload
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
af
offset
length
routing
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
version version of the HSRP messages
opcode type of message
state current state of the router
hello_time period in seconds between hello messages
hold_time seconds that the current hello message is valid
priority priority for the election proccess
group standby group
reserved reserved field
authdata password
virtual_ip virtual ip address
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
type type of ICMP packet (should be ICMP_ECHOREPLY or ICMP_ECHO)
code code of ICMP packet (should be 0)
sum checksum (0 for libnet to autofill)
id identification number
seq packet sequence number
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
type type of ICMP packet (should be ICMP_MASKREQ or ICMP_MASKREPLY)
code code of ICMP packet (should be 0)
sum checksum (0 for libnet to autofill)
id identification number
seq packet sequence number
mask subnet mask
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
type type of ICMP packet (should be ICMP_REDIRECT)
code code of ICMP packet (should be one of the four redirect codes)
sum checksum (0 for libnet to autofill)
gateway
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
type type of ICMP packet (should be ICMP_TIMXCEED)
code code of ICMP packet (ICMP_TIMXCEED_INTRANS / ICMP_TIMXCEED_REASS)
sum checksum (0 for libnet to autofill)
payload optional payload or NULL
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
type type of ICMP packet (should be ICMP_TSTAMP or ICMP_TSTAMPREPLY)
code code of ICMP packet (should be 0)
sum checksum (0 for libnet to autofill)
id identification number
seq sequence number
otime originate timestamp
rtime receive timestamp
ttime transmit timestamp
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
type type of ICMP packet (should be ICMP_UNREACH)
code code of ICMP packet (should be one of the 16 unreachable codes)
sum checksum (0 for libnet to autofill)
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
type type of ICMP packet (should be ICMP6_ECHO_REQUEST or ICMP6_ECHO_REPLY)
code code of ICMP packet (should be zero)
sum checksum (0 for libnet to autofill)
id echo id number
seq echo sequence number
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
type type of ICMP packet (should be ND_NEIGHBOR_ADVERT)
code code of ICMP packet (should be zero)
sum checksum (0 for libnet to autofill)
flags should be a bitwise or of any applicable ND_NA_FLAG_* flags
target target ipv6 address
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
type type of ICMP packet (should be ND_NEIGHBOR_SOLICIT)
code code of ICMP packet (should be zero)
sum checksum (0 for libnet to autofill)
target target ipv6 address
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
type one of ND_OPT_* types
option option data
option_s size of option data (will be padded out to an 8-byte boundary)
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
type type of ICMP packet (should be ICMP6_DST_UNREACH)
code code of ICMP packet (should be one of the 5 ICMP6_DST_UNREACH_* codes)
sum checksum (0 for libnet to autofill)
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
type packet type
reserved (should be 0 for IGMPv1)
sum checksum (0 for libnet to autofill)
ip IPv4 address (in standard/network byte order)
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Note:
'reserved' was previously called 'code', which it is not, in any IGMP version.
Parameters:
nh next header
len payload length
res reserved
spi security parameter index
seq sequence number
auth authentication data
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
len padding length
nh next header
auth authentication data
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
spi security parameter index
seq ESP sequence number
iv initialization vector
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
ip_len total length of the IP packet including all subsequent data (subsequent data includes any IP options and IP options padding)
tos type of service bits
id IP identification number
frag fragmentation bits and offset
ttl time to live in the network
prot upper layer protocol
sum checksum (0 for libnet to autofill)
src source IPv4 address (little endian)
dst destination IPv4 address (little endian)
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
When building a chain, the options must be built, then the IPv4 header.
When updating a chain, if the block following the options is an IPv4 header, it's total length and header length will be updated if the options block size changes.
Parameters:
options byte string of IP options (it will be padded up to be an integral multiple of 32-bit words).
options_s length of options string
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
tc traffic class
fl flow label
len total length of the IP packet
nh next header
hl hop limit
src source IPv6 address
dst destination IPv6 address
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
nh next header
len length of the header in 8-byte octets not including the first 8 octets
payload options payload
payload_s payload length
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
nh next header
reserved unused value... OR IS IT!
frag fragmentation bits (ala ipv4)
id packet identification
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
nh next header
len length of the header in 8-byte octets not including the first 8 octets
payload options payload
payload_s payload length
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
nh next header
len length of the header in 8-byte octets not including the first 8 octets
rtype routing header type
segments number of routing segments that follow
payload optional payload of routing information
payload_s payload length
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
dhost destination address (should be 01:00:0c:00:00)
type type of frame
user user defined data
shost source mac address
len total length of the encapuslated packet less 18 bytes
snap SNAP information (0xaaaa03 + vendor code)
vid 15 bit VLAN ID, 1 bit BPDU or CDP indicator
portindex port index
reserved used for FDDI and token ring
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
dst the destination MAC address
src the source MAC address
oui Organizationally Unique Identifier (unused for Ethernet)
type the upper layer protocol type
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
label 20-bit label value
experimental 3-bit reserved field
bos 1-bit bottom of stack identifier
ttl time to live
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
leap_indicator the leap indicator
version NTP protocol version
mode NTP mode
stratum stratum
poll polling interval
precision precision
delay_int delay interval
delay_frac delay fraction
dispersion_int dispersion interval
dispersion_frac dispersion fraction
reference_id reference id
ref_ts_int reference timestamp integer
ref_ts_frac reference timestamp fraction
orig_ts_int original timestamp integer
orig_ts_frac original timestamp fraction
rec_ts_int receiver timestamp integer
rec_ts_frac receiver timestamp fraction
xmt_ts_int transmit timestamp integer
xmt_ts_frac transmit timestamp integer
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
len
type
rtr_id
area_id
sum
autype
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
dgram_len
opts
type
seqnum
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
netmask
interval
opts
priority
dead_int
des_rtr
bkup_rtr
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
age
opts
type
lsid
advrtr
seqnum
sum
len
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
nmask
metric
fwdaddr
tag
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
nmask
rtrid
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
flags
num
id
data
type
tos
metric
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
nmask
metric
tos
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
type
lsid
advrtr
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
num
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
cmd command
version protocol version
rd version one: 0, version two: routing domain
af address family
rt version one: 0, version two: route tag
addr IPv4 address
mask version one: 0, version two: subnet mask
next_hop version one: 0, version two: next hop address
metric routing metric
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
rm record marking indicating the position in a stream, 0 otherwise
xid transaction identifier used to link calls and replies
prog_num remote program specification typically between 0 - 1fffffff
prog_vers remote program version specification
procedure procedure to be performed by remote program
cflavor authentication credential type
clength credential length (should be 0)
cdata opaque credential data (currently unused)
vflavor authentication verifier type
vlength verifier length (should be 0)
vdata opaque verifier data (currently unused)
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
magic identify packets that should be hidden
version protocol version, currently 1
type type of record (read data is type 0, write data is type 1)
counter PDU counter used to identify when packet are lost
time_sec seconds since EPOCH according to the honeypot
time_usec residual microseconds
pid PID
uid UID
fd FD
cmd 12 first characters of the command
length length in bytes of the PDU's body
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
id protocol id
version protocol version
bpdu_type bridge protocol data unit type
flags flags
root_id root id
root_pc root path cost
bridge_id bridge id
port_id port id
message_age message age
max_age max age
hello_time hello time
f_delay forward delay
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
id protocol id
version protocol version
bpdu_type bridge protocol data unit type
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
sp source port
dp destination port
seq sequence number
ack acknowledgement number
control control flags
win window size
sum checksum (0 for libnet to autofill)
urg urgent pointer
len total length of the TCP packet (for checksum calculation)
payload
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
options byte string of TCP options
options_s length of options string
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
ac access control
fc frame control
dst destination address
src source address
dsap destination service access point
ssap source service access point
cf control field
oui Organizationally Unique Identifier
type upper layer protocol type
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
sp source port
dp destination port
len total length of the UDP packet
sum checksum (0 for libnet to autofill)
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
version VRRP version (should be 2)
type VRRP packet type (should be 1 -- ADVERTISEMENT)
vrouter_id virtual router identification
priority priority (higher numbers indicate higher priority)
ip_count number of IPv4 addresses contained in this advertisement
auth_type type of authentication (0, 1, 2 -- see RFC)
advert_int interval between advertisements
sum checksum (0 for libnet to autofill)
payload optional payload or NULL
payload_s payload length or 0
l pointer to a libnet context
ptag protocol tag to modify an existing header, 0 to build a new one
Returns:
protocol tag value on success, -1 on error
Parameters:
l pointer to a libnet context
Parameters:
l pointer to a libnet context
label a canonical name given to recognize the new context, no longer than LIBNET_LABEL_SIZE
Returns:
1 on success, -1 on failure
Parameters:
label canonical label of the libnet context to retrieve
Returns:
the expected libnet context, NULL on failure
Parameters:
l pointer to a libnet context
Returns:
pointer to the libnet context's label
for (l = libnet_cq_head(); libnet_cq_last(); l = libnet_cq_next()) { ... }
Much of the time, the application programmer will use the iterator as it is written above; as such, libnet provides a macro to do exactly that, for_each_context_in_cq(l). Warning: do not call the iterator more than once in a single loop.
Returns:
the head of the context queue
Returns:
1 if at the end of the context queue, 0 otherwise
Returns:
the next context from the context queue
Parameters:
l pointer to a libnet context
Returns:
the pointer to the removed libnet context, NULL on failure
Parameters:
label canonical name of the context to remove
Returns:
the pointer to the removed libnet context, NULL on failure
Returns:
the number of libnet contexts currently in the queue
Parameters:
l pointer to a libnet context
Parameters:
l pointer to a libnet context
Parameters:
packet the packet to print
len length of the packet in bytes
swap 1 to swap byte order, 0 to not. Counter-intuitively, it is necessary to swap in order to see the byte order as it is on the wire (this may be a bug).
stream a stream pointer to print to
Parameters:
l pointer to a libnet context
Parameters:
type pblock type
Returns:
a string representing the pblock type type or 'unknown' for an unknown value
Parameters:
l pointer to a libnet context
Returns:
a pointer to the MAC address or NULL
Parameters:
l pointer to a libnet context
Returns:
a big endian IP address suitable for use in a libnet_build function or -1
Parameters:
l pointer to a libnet context
Returns:
well, nothing yet
Parameters:
mod one the of LIBNET_PR* constants
Returns:
1 on success, -1 on failure
Parameters:
l pointer to a libnet context
Returns:
the canonical name of the device used for packet injection. Note it can be NULL without being an error.
Parameters:
l pointer to a libnet context
Returns:
an error string or NULL if no error has occured
Parameters:
l pointer to a libnet context
Returns:
the file number of the file descriptor used for packet injection
fv see libnet_build_gre().
Returns:
size, see libnet_build_gre().
Parameters:
l pointer to a libnet context
Returns:
the size of the packet in l
Parameters:
l pointer to a libnet context
ptag the ptag reference number
Returns:
a pointer to the pblock buffer or NULL on error
Parameters:
l pointer to a libnet context
ptag the ptag reference number
Returns:
the size of the pblock buffer
Parameters:
s the string to be parsed
len the resulting size of the returned byte string
Returns:
a byte string or NULL on failure
Parameters:
addr address to check
Returns:
1 if addr is in6addr_error, 0 if it is not
Parameters:
injection_type packet injection type (LIBNET_LINK, LIBNET_LINK_ADV, LIBNET_RAW4, LIBNET_RAW4_ADV, LIBNET_RAW6, LIBNET_RAW6_ADV)
device the interface to use (NULL and libnet will choose one)
err_buf will contain an error message on failure
Returns:
libnet context ready for use or NULL on error.
Parameters:
l pointer to a libnet context
host_name pointer to a string containing a presentation format host name
use_name LIBNET_RESOLVE or LIBNET_DONT_RESOLVE
Returns:
network byte ordered IPv4 address or -1 (2^32 - 1) on error
Parameters:
l pointer to a libnet context
host_name pointer to a string containing a presentation format host name
use_name LIBNET_RESOLVE or LIBNET_DONT_RESOLVE
Returns:
network byte ordered IPv6 address structure
Parameters:
plist previously created portlist
Returns:
1 on success, -1 on failure
Parameters:
plist previously created portlist
Returns:
a printable string containing the port list contents on success NULL on error
Parameters:
plist previously created portlist
Returns:
1 on success, -1 on failure
Parameters:
l pointer to a libnet context
plist if successful, will refer to the portlist, if not, NULL
token_list string containing the port list primitive
Returns:
1 on success, -1 on failure
Parameters:
plist previously created portlist
bport will contain the beginning port number or 0
eport will contain the ending port number or 0
Returns:
1 on success, 0 if empty, -1 on failure
Parameters:
l pointer to a libnet context
Returns:
1 on success, -1 on failure
Parameters:
l pointer to a libnet context
ls pointer to a libnet statistics structure
Parameters:
l pointer to a libnet context
ptag the ptag reference number
mode LIBNET_ON or LIBNET_OFF
Returns:
1 on success, -1 on failure
Returns:
the libnet version
Parameters:
l pointer to a libnet context
Returns:
the number of bytes written, -1 on error
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