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/* libnetfilter_log.h: Header file for the Netfilter Userspace Log library. * * (C) 2005 by Harald Welte * * This software may be used and distributed according to the terms * of the GNU General Public License, incorporated herein by reference. */ #ifndef __LIBNETFILTER_LOG_H #define __LIBNETFILTER_LOG_H #include #include #include #include #ifdef __cplusplus extern "C" { #endif struct nflog_handle; struct nflog_g_handle; struct nflog_data; extern int nflog_errno; extern struct nfnl_handle *nflog_nfnlh(struct nflog_handle *h); extern int nflog_fd(struct nflog_handle *h); typedef int nflog_callback(struct nflog_g_handle *gh, struct nfgenmsg *nfmsg, struct nflog_data *nfd, void *data); extern struct nflog_handle *nflog_open(void); extern struct nflog_handle *nflog_open_nfnl(struct nfnl_handle *nfnlh); extern int nflog_close(struct nflog_handle *h); extern int nflog_bind_pf(struct nflog_handle *h, uint16_t pf); extern int nflog_unbind_pf(struct nflog_handle *h, uint16_t pf); extern struct nflog_g_handle *nflog_bind_group(struct nflog_handle *h, uint16_t num); extern int nflog_unbind_group(struct nflog_g_handle *gh); extern int nflog_set_mode(struct nflog_g_handle *gh, uint8_t mode, unsigned int len); extern int nflog_set_timeout(struct nflog_g_handle *gh, uint32_t timeout); extern int nflog_set_flags(struct nflog_g_handle *gh, uint16_t flags); extern int nflog_set_qthresh(struct nflog_g_handle *gh, uint32_t qthresh); extern int nflog_set_nlbufsiz(struct nflog_g_handle *gh, uint32_t nlbufsiz); extern int nflog_callback_register(struct nflog_g_handle *gh, nflog_callback *cb, void *data); extern int nflog_handle_packet(struct nflog_handle *h, char *buf, int len); extern struct nfulnl_msg_packet_hdr *nflog_get_msg_packet_hdr(struct nflog_data *nfad); extern uint16_t nflog_get_hwtype(struct nflog_data *nfad); extern uint16_t nflog_get_msg_packet_hwhdrlen(struct nflog_data *nfad); extern char *nflog_get_msg_packet_hwhdr(struct nflog_data *nfad); extern uint32_t nflog_get_nfmark(struct nflog_data *nfad); extern int nflog_get_timestamp(struct nflog_data *nfad, struct timeval *tv); extern uint32_t nflog_get_indev(struct nflog_data *nfad); extern uint32_t nflog_get_physindev(struct nflog_data *nfad); extern uint32_t nflog_get_outdev(struct nflog_data *nfad); extern uint32_t nflog_get_physoutdev(struct nflog_data *nfad); extern struct nfulnl_msg_packet_hw *nflog_get_packet_hw(struct nflog_data *nfad); extern int nflog_get_payload(struct nflog_data *nfad, char **data); extern char *nflog_get_prefix(struct nflog_data *nfad); extern int nflog_get_uid(struct nflog_data *nfad, uint32_t *uid); extern int nflog_get_gid(struct nflog_data *nfad, uint32_t *gid); extern int nflog_get_seq(struct nflog_data *nfad, uint32_t *seq); extern int nflog_get_seq_global(struct nflog_data *nfad, uint32_t *seq); enum { NFLOG_XML_PREFIX = (1 << 0), NFLOG_XML_HW = (1 << 1), NFLOG_XML_MARK = (1 << 2), NFLOG_XML_DEV = (1 << 3), NFLOG_XML_PHYSDEV = (1 << 4), NFLOG_XML_PAYLOAD = (1 << 5), NFLOG_XML_TIME = (1 << 6), NFLOG_XML_CTID = (1 << 7), NFLOG_XML_ALL = ~0U, }; extern int nflog_snprintf_xml(char *buf, size_t len, struct nflog_data *tb, int flags); extern struct nlmsghdr * nflog_nlmsg_put_header(char *buf, uint8_t type, uint8_t family, uint16_t gnum); extern int nflog_attr_put_cfg_mode(struct nlmsghdr *nlh, uint8_t mode, uint32_t range); extern int nflog_attr_put_cfg_cmd(struct nlmsghdr *nlh, uint8_t cmd); extern int nflog_nlmsg_parse(const struct nlmsghdr *nlh, struct nlattr **attr); enum nflog_output_type { NFLOG_OUTPUT_XML = 0, }; int nflog_nlmsg_snprintf(char *buf, size_t bufsiz, const struct nlmsghdr *nlh, struct nlattr **attr, enum nflog_output_type type, uint32_t flags); #ifdef __cplusplus } /* extern "C" */ #endif #endif /* __LIBNETFILTER_LOG_H */