cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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nf_log.h (2666B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef _NF_LOG_H
      3#define _NF_LOG_H
      4
      5#include <linux/netfilter.h>
      6#include <linux/netfilter/nf_log.h>
      7
      8/* Log tcp sequence, tcp options, ip options and uid owning local socket */
      9#define NF_LOG_DEFAULT_MASK	0x0f
     10
     11/* This flag indicates that copy_len field in nf_loginfo is set */
     12#define NF_LOG_F_COPY_LEN	0x1
     13
     14enum nf_log_type {
     15	NF_LOG_TYPE_LOG		= 0,
     16	NF_LOG_TYPE_ULOG,
     17	NF_LOG_TYPE_MAX
     18};
     19
     20struct nf_loginfo {
     21	u_int8_t type;
     22	union {
     23		struct {
     24			/* copy_len will be used iff you set
     25			 * NF_LOG_F_COPY_LEN in flags
     26			 */
     27			u_int32_t copy_len;
     28			u_int16_t group;
     29			u_int16_t qthreshold;
     30			u_int16_t flags;
     31		} ulog;
     32		struct {
     33			u_int8_t level;
     34			u_int8_t logflags;
     35		} log;
     36	} u;
     37};
     38
     39typedef void nf_logfn(struct net *net,
     40		      u_int8_t pf,
     41		      unsigned int hooknum,
     42		      const struct sk_buff *skb,
     43		      const struct net_device *in,
     44		      const struct net_device *out,
     45		      const struct nf_loginfo *li,
     46		      const char *prefix);
     47
     48struct nf_logger {
     49	char			*name;
     50	enum nf_log_type	type;
     51	nf_logfn 		*logfn;
     52	struct module		*me;
     53};
     54
     55/* sysctl_nf_log_all_netns - allow LOG target in all network namespaces */
     56extern int sysctl_nf_log_all_netns;
     57
     58/* Function to register/unregister log function. */
     59int nf_log_register(u_int8_t pf, struct nf_logger *logger);
     60void nf_log_unregister(struct nf_logger *logger);
     61
     62int nf_log_set(struct net *net, u_int8_t pf, const struct nf_logger *logger);
     63void nf_log_unset(struct net *net, const struct nf_logger *logger);
     64
     65int nf_log_bind_pf(struct net *net, u_int8_t pf,
     66		   const struct nf_logger *logger);
     67void nf_log_unbind_pf(struct net *net, u_int8_t pf);
     68
     69int nf_logger_find_get(int pf, enum nf_log_type type);
     70void nf_logger_put(int pf, enum nf_log_type type);
     71
     72#define MODULE_ALIAS_NF_LOGGER(family, type) \
     73	MODULE_ALIAS("nf-logger-" __stringify(family) "-" __stringify(type))
     74
     75/* Calls the registered backend logging function */
     76__printf(8, 9)
     77void nf_log_packet(struct net *net,
     78		   u_int8_t pf,
     79		   unsigned int hooknum,
     80		   const struct sk_buff *skb,
     81		   const struct net_device *in,
     82		   const struct net_device *out,
     83		   const struct nf_loginfo *li,
     84		   const char *fmt, ...);
     85
     86__printf(8, 9)
     87void nf_log_trace(struct net *net,
     88		  u_int8_t pf,
     89		  unsigned int hooknum,
     90		  const struct sk_buff *skb,
     91		  const struct net_device *in,
     92		  const struct net_device *out,
     93		  const struct nf_loginfo *li,
     94		  const char *fmt, ...);
     95
     96struct nf_log_buf;
     97
     98struct nf_log_buf *nf_log_buf_open(void);
     99__printf(2, 3) int nf_log_buf_add(struct nf_log_buf *m, const char *f, ...);
    100void nf_log_buf_close(struct nf_log_buf *m);
    101#endif /* _NF_LOG_H */