Lines Matching refs:handle
84 static int nfqueue_send_verdict(const pcap_t *handle, uint16_t group_id, u_int32_t id, u_int32_t ve…
88 netfilter_read_linux(pcap_t *handle, int max_packets, pcap_handler callback, u_char *user) in netfilter_read_linux() argument
90 struct pcap_netfilter *handlep = handle->priv; in netfilter_read_linux()
98 if (handle->break_loop) { in netfilter_read_linux()
104 handle->break_loop = 0; in netfilter_read_linux()
107 len = handle->cc; in netfilter_read_linux()
119 len = recv(handle->fd, handle->buffer, handle->bufsize, 0); in netfilter_read_linux()
120 if (handle->break_loop) { in netfilter_read_linux()
121 handle->break_loop = 0; in netfilter_read_linux()
129 pcapint_fmt_errmsg_for_errno(handle->errbuf, in netfilter_read_linux()
134 bp = (unsigned char *)handle->buffer; in netfilter_read_linux()
136 bp = handle->bp; in netfilter_read_linux()
159 if (handle->break_loop) { in netfilter_read_linux()
160 handle->bp = bp; in netfilter_read_linux()
161 handle->cc = (int)(ep - bp); in netfilter_read_linux()
163 handle->break_loop = 0; in netfilter_read_linux()
188 …snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, "Message truncated: (got: %zd) (nlmsg_len: %u)", len, n… in netfilter_read_linux()
206 if (handle->linktype != DLT_NFLOG) { in netfilter_read_linux()
210 … snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, "Malformed message: (nlmsg_len: %u)", nlh->nlmsg_len); in netfilter_read_linux()
259 if (handle->fcode.bf_insns == NULL || in netfilter_read_linux()
260 pcapint_filter(handle->fcode.bf_insns, payload, pkth.len, pkth.caplen)) in netfilter_read_linux()
273 nfqueue_send_verdict(handle, ntohs(nfg->res_id), id, NF_ACCEPT); in netfilter_read_linux()
295 handle->bp = bp; in netfilter_read_linux()
296 handle->cc = (int)(ep - bp); in netfilter_read_linux()
297 if (handle->cc < 0) in netfilter_read_linux()
298 handle->cc = 0; in netfilter_read_linux()
303 handle->cc = 0; in netfilter_read_linux()
308 netfilter_set_datalink(pcap_t *handle, int dlt) in netfilter_set_datalink() argument
310 handle->linktype = dlt; in netfilter_set_datalink()
315 netfilter_stats_linux(pcap_t *handle, struct pcap_stat *stats) in netfilter_stats_linux() argument
317 struct pcap_netfilter *handlep = handle->priv; in netfilter_stats_linux()
326 netfilter_inject_linux(pcap_t *handle, const void *buf _U_, int size _U_) in netfilter_inject_linux() argument
328 snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, in netfilter_inject_linux()
340 netfilter_send_config_msg(const pcap_t *handle, uint16_t msg_type, int ack, u_int8_t family, u_int1… in netfilter_send_config_msg() argument
379 if (sendto(handle->fd, nlh, nlh->nlmsg_len, 0, (struct sockaddr *) &snl, sizeof(snl)) == -1) in netfilter_send_config_msg()
396 len = (int)recvfrom(handle->fd, buf, sizeof(buf), 0, (struct sockaddr *) &snl, &addrlen); in netfilter_send_config_msg()
428 nflog_send_config_msg(const pcap_t *handle, uint8_t family, u_int16_t group_id, const struct my_nfa… in nflog_send_config_msg() argument
430 …return netfilter_send_config_msg(handle, (NFNL_SUBSYS_ULOG << 8) | NFULNL_MSG_CONFIG, 1, family, g… in nflog_send_config_msg()
434 nflog_send_config_cmd(const pcap_t *handle, uint16_t group_id, u_int8_t cmd, u_int8_t family) in nflog_send_config_cmd() argument
445 return nflog_send_config_msg(handle, family, group_id, &nfa); in nflog_send_config_cmd()
449 nflog_send_config_mode(const pcap_t *handle, uint16_t group_id, u_int8_t copy_mode, u_int32_t copy_… in nflog_send_config_mode() argument
461 return nflog_send_config_msg(handle, AF_UNSPEC, group_id, &nfa); in nflog_send_config_mode()
465 nfqueue_send_verdict(const pcap_t *handle, uint16_t group_id, u_int32_t id, u_int32_t verdict) in nfqueue_send_verdict() argument
477 …return netfilter_send_config_msg(handle, (NFNL_SUBSYS_QUEUE << 8) | NFQNL_MSG_VERDICT, 0, AF_UNSPE… in nfqueue_send_verdict()
481 nfqueue_send_config_msg(const pcap_t *handle, uint8_t family, u_int16_t group_id, const struct my_n… in nfqueue_send_config_msg() argument
483 …return netfilter_send_config_msg(handle, (NFNL_SUBSYS_QUEUE << 8) | NFQNL_MSG_CONFIG, 1, family, g… in nfqueue_send_config_msg()
487 nfqueue_send_config_cmd(const pcap_t *handle, uint16_t group_id, u_int8_t cmd, u_int16_t pf) in nfqueue_send_config_cmd() argument
499 return nfqueue_send_config_msg(handle, AF_UNSPEC, group_id, &nfa); in nfqueue_send_config_cmd()
503 nfqueue_send_config_mode(const pcap_t *handle, uint16_t group_id, u_int8_t copy_mode, u_int32_t cop… in nfqueue_send_config_mode() argument
515 return nfqueue_send_config_msg(handle, AF_UNSPEC, group_id, &nfa); in nfqueue_send_config_mode()
519 netfilter_activate(pcap_t* handle) in netfilter_activate() argument
521 const char *dev = handle->opt.device; in netfilter_activate()
543 snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, in netfilter_activate()
545 handle->opt.device); in netfilter_activate()
552 snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, in netfilter_activate()
568 snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, in netfilter_activate()
570 handle->opt.device); in netfilter_activate()
588 if (handle->snapshot <= 0 || handle->snapshot > MAXIMUM_SNAPLEN) in netfilter_activate()
589 handle->snapshot = MAXIMUM_SNAPLEN; in netfilter_activate()
592 handle->bufsize = 128 + handle->snapshot; in netfilter_activate()
593 handle->offset = 0; in netfilter_activate()
594 handle->read_op = netfilter_read_linux; in netfilter_activate()
595 handle->inject_op = netfilter_inject_linux; in netfilter_activate()
596 handle->setfilter_op = pcapint_install_bpf_program; /* no kernel filtering */ in netfilter_activate()
597 handle->setdirection_op = NULL; in netfilter_activate()
598 handle->set_datalink_op = netfilter_set_datalink; in netfilter_activate()
599 handle->getnonblock_op = pcapint_getnonblock_fd; in netfilter_activate()
600 handle->setnonblock_op = pcapint_setnonblock_fd; in netfilter_activate()
601 handle->stats_op = netfilter_stats_linux; in netfilter_activate()
604 handle->fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER); in netfilter_activate()
605 if (handle->fd < 0) { in netfilter_activate()
606 pcapint_fmt_errmsg_for_errno(handle->errbuf, PCAP_ERRBUF_SIZE, in netfilter_activate()
612 handle->linktype = DLT_NFLOG; in netfilter_activate()
613 handle->dlt_list = (u_int *) malloc(sizeof(u_int) * 2); in netfilter_activate()
614 if (handle->dlt_list == NULL) { in netfilter_activate()
615 pcapint_fmt_errmsg_for_errno(handle->errbuf, in netfilter_activate()
620 handle->dlt_list[0] = DLT_NFLOG; in netfilter_activate()
621 handle->dlt_list[1] = DLT_IPV4; in netfilter_activate()
622 handle->dlt_count = 2; in netfilter_activate()
624 handle->linktype = DLT_IPV4; in netfilter_activate()
626 handle->buffer = malloc(handle->bufsize); in netfilter_activate()
627 if (!handle->buffer) { in netfilter_activate()
628 pcapint_fmt_errmsg_for_errno(handle->errbuf, PCAP_ERRBUF_SIZE, in netfilter_activate()
634 if (nflog_send_config_cmd(handle, 0, NFULNL_CFG_CMD_PF_UNBIND, AF_INET) < 0) { in netfilter_activate()
635 pcapint_fmt_errmsg_for_errno(handle->errbuf, in netfilter_activate()
641 if (nflog_send_config_cmd(handle, 0, NFULNL_CFG_CMD_PF_BIND, AF_INET) < 0) { in netfilter_activate()
642 pcapint_fmt_errmsg_for_errno(handle->errbuf, in netfilter_activate()
649 if (nflog_send_config_cmd(handle, groups[i], NFULNL_CFG_CMD_BIND, AF_UNSPEC) < 0) { in netfilter_activate()
650 pcapint_fmt_errmsg_for_errno(handle->errbuf, in netfilter_activate()
656 if (nflog_send_config_mode(handle, groups[i], NFULNL_COPY_PACKET, handle->snapshot) < 0) { in netfilter_activate()
657 pcapint_fmt_errmsg_for_errno(handle->errbuf, in netfilter_activate()
665 if (nfqueue_send_config_cmd(handle, 0, NFQNL_CFG_CMD_PF_UNBIND, AF_INET) < 0) { in netfilter_activate()
666 pcapint_fmt_errmsg_for_errno(handle->errbuf, in netfilter_activate()
671 if (nfqueue_send_config_cmd(handle, 0, NFQNL_CFG_CMD_PF_BIND, AF_INET) < 0) { in netfilter_activate()
672 pcapint_fmt_errmsg_for_errno(handle->errbuf, in netfilter_activate()
679 if (nfqueue_send_config_cmd(handle, groups[i], NFQNL_CFG_CMD_BIND, AF_UNSPEC) < 0) { in netfilter_activate()
680 pcapint_fmt_errmsg_for_errno(handle->errbuf, in netfilter_activate()
686 if (nfqueue_send_config_mode(handle, groups[i], NFQNL_COPY_PACKET, handle->snapshot) < 0) { in netfilter_activate()
687 pcapint_fmt_errmsg_for_errno(handle->errbuf, in netfilter_activate()
695 if (handle->opt.rfmon) { in netfilter_activate()
699 pcapint_cleanup_live_common(handle); in netfilter_activate()
703 if (handle->opt.buffer_size != 0) { in netfilter_activate()
707 …if (setsockopt(handle->fd, SOL_SOCKET, SO_RCVBUF, &handle->opt.buffer_size, sizeof(handle->opt.buf… in netfilter_activate()
708 pcapint_fmt_errmsg_for_errno(handle->errbuf, in netfilter_activate()
714 handle->selectable_fd = handle->fd; in netfilter_activate()
718 pcapint_cleanup_live_common(handle); in netfilter_activate()