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-rw-r--r--net/netfilter/nf_log_common.c212
1 files changed, 0 insertions, 212 deletions
diff --git a/net/netfilter/nf_log_common.c b/net/netfilter/nf_log_common.c
deleted file mode 100644
index ae5628ddbe6d..000000000000
--- a/net/netfilter/nf_log_common.c
+++ /dev/null
@@ -1,212 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/* (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
- */
-
-#include <linux/module.h>
-#include <linux/spinlock.h>
-#include <linux/skbuff.h>
-#include <linux/if_arp.h>
-#include <linux/ip.h>
-#include <net/icmp.h>
-#include <net/udp.h>
-#include <net/tcp.h>
-#include <net/route.h>
-
-#include <linux/netfilter.h>
-#include <linux/netfilter_bridge.h>
-#include <linux/netfilter/xt_LOG.h>
-#include <net/netfilter/nf_log.h>
-
-int nf_log_dump_udp_header(struct nf_log_buf *m, const struct sk_buff *skb,
- u8 proto, int fragment, unsigned int offset)
-{
- struct udphdr _udph;
- const struct udphdr *uh;
-
- if (proto == IPPROTO_UDP)
- /* Max length: 10 "PROTO=UDP " */
- nf_log_buf_add(m, "PROTO=UDP ");
- else /* Max length: 14 "PROTO=UDPLITE " */
- nf_log_buf_add(m, "PROTO=UDPLITE ");
-
- if (fragment)
- goto out;
-
- /* Max length: 25 "INCOMPLETE [65535 bytes] " */
- uh = skb_header_pointer(skb, offset, sizeof(_udph), &_udph);
- if (uh == NULL) {
- nf_log_buf_add(m, "INCOMPLETE [%u bytes] ", skb->len - offset);
-
- return 1;
- }
-
- /* Max length: 20 "SPT=65535 DPT=65535 " */
- nf_log_buf_add(m, "SPT=%u DPT=%u LEN=%u ",
- ntohs(uh->source), ntohs(uh->dest), ntohs(uh->len));
-
-out:
- return 0;
-}
-EXPORT_SYMBOL_GPL(nf_log_dump_udp_header);
-
-int nf_log_dump_tcp_header(struct nf_log_buf *m, const struct sk_buff *skb,
- u8 proto, int fragment, unsigned int offset,
- unsigned int logflags)
-{
- struct tcphdr _tcph;
- const struct tcphdr *th;
-
- /* Max length: 10 "PROTO=TCP " */
- nf_log_buf_add(m, "PROTO=TCP ");
-
- if (fragment)
- return 0;
-
- /* Max length: 25 "INCOMPLETE [65535 bytes] " */
- th = skb_header_pointer(skb, offset, sizeof(_tcph), &_tcph);
- if (th == NULL) {
- nf_log_buf_add(m, "INCOMPLETE [%u bytes] ", skb->len - offset);
- return 1;
- }
-
- /* Max length: 20 "SPT=65535 DPT=65535 " */
- nf_log_buf_add(m, "SPT=%u DPT=%u ",
- ntohs(th->source), ntohs(th->dest));
- /* Max length: 30 "SEQ=4294967295 ACK=4294967295 " */
- if (logflags & NF_LOG_TCPSEQ) {
- nf_log_buf_add(m, "SEQ=%u ACK=%u ",
- ntohl(th->seq), ntohl(th->ack_seq));
- }
-
- /* Max length: 13 "WINDOW=65535 " */
- nf_log_buf_add(m, "WINDOW=%u ", ntohs(th->window));
- /* Max length: 9 "RES=0x3C " */
- nf_log_buf_add(m, "RES=0x%02x ", (u_int8_t)(ntohl(tcp_flag_word(th) &
- TCP_RESERVED_BITS) >> 22));
- /* Max length: 32 "CWR ECE URG ACK PSH RST SYN FIN " */
- if (th->cwr)
- nf_log_buf_add(m, "CWR ");
- if (th->ece)
- nf_log_buf_add(m, "ECE ");
- if (th->urg)
- nf_log_buf_add(m, "URG ");
- if (th->ack)
- nf_log_buf_add(m, "ACK ");
- if (th->psh)
- nf_log_buf_add(m, "PSH ");
- if (th->rst)
- nf_log_buf_add(m, "RST ");
- if (th->syn)
- nf_log_buf_add(m, "SYN ");
- if (th->fin)
- nf_log_buf_add(m, "FIN ");
- /* Max length: 11 "URGP=65535 " */
- nf_log_buf_add(m, "URGP=%u ", ntohs(th->urg_ptr));
-
- if ((logflags & NF_LOG_TCPOPT) && th->doff*4 > sizeof(struct tcphdr)) {
- u_int8_t _opt[60 - sizeof(struct tcphdr)];
- const u_int8_t *op;
- unsigned int i;
- unsigned int optsize = th->doff*4 - sizeof(struct tcphdr);
-
- op = skb_header_pointer(skb, offset + sizeof(struct tcphdr),
- optsize, _opt);
- if (op == NULL) {
- nf_log_buf_add(m, "OPT (TRUNCATED)");
- return 1;
- }
-
- /* Max length: 127 "OPT (" 15*4*2chars ") " */
- nf_log_buf_add(m, "OPT (");
- for (i = 0; i < optsize; i++)
- nf_log_buf_add(m, "%02X", op[i]);
-
- nf_log_buf_add(m, ") ");
- }
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(nf_log_dump_tcp_header);
-
-void nf_log_dump_sk_uid_gid(struct net *net, struct nf_log_buf *m,
- struct sock *sk)
-{
- if (!sk || !sk_fullsock(sk) || !net_eq(net, sock_net(sk)))
- return;
-
- read_lock_bh(&sk->sk_callback_lock);
- if (sk->sk_socket && sk->sk_socket->file) {
- const struct cred *cred = sk->sk_socket->file->f_cred;
- nf_log_buf_add(m, "UID=%u GID=%u ",
- from_kuid_munged(&init_user_ns, cred->fsuid),
- from_kgid_munged(&init_user_ns, cred->fsgid));
- }
- read_unlock_bh(&sk->sk_callback_lock);
-}
-EXPORT_SYMBOL_GPL(nf_log_dump_sk_uid_gid);
-
-void
-nf_log_dump_packet_common(struct nf_log_buf *m, u_int8_t pf,
- unsigned int hooknum, const struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- const struct nf_loginfo *loginfo, const char *prefix)
-{
- const struct net_device *physoutdev __maybe_unused;
- const struct net_device *physindev __maybe_unused;
-
- nf_log_buf_add(m, KERN_SOH "%c%sIN=%s OUT=%s ",
- '0' + loginfo->u.log.level, prefix,
- in ? in->name : "",
- out ? out->name : "");
-#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
- physindev = nf_bridge_get_physindev(skb);
- if (physindev && in != physindev)
- nf_log_buf_add(m, "PHYSIN=%s ", physindev->name);
- physoutdev = nf_bridge_get_physoutdev(skb);
- if (physoutdev && out != physoutdev)
- nf_log_buf_add(m, "PHYSOUT=%s ", physoutdev->name);
-#endif
-}
-EXPORT_SYMBOL_GPL(nf_log_dump_packet_common);
-
-/* bridge and netdev logging families share this code. */
-void nf_log_l2packet(struct net *net, u_int8_t pf,
- __be16 protocol,
- unsigned int hooknum,
- const struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- const struct nf_loginfo *loginfo,
- const char *prefix)
-{
- switch (protocol) {
- case htons(ETH_P_IP):
- nf_log_packet(net, NFPROTO_IPV4, hooknum, skb, in, out,
- loginfo, "%s", prefix);
- break;
- case htons(ETH_P_IPV6):
- nf_log_packet(net, NFPROTO_IPV6, hooknum, skb, in, out,
- loginfo, "%s", prefix);
- break;
- case htons(ETH_P_ARP):
- case htons(ETH_P_RARP):
- nf_log_packet(net, NFPROTO_ARP, hooknum, skb, in, out,
- loginfo, "%s", prefix);
- break;
- }
-}
-EXPORT_SYMBOL_GPL(nf_log_l2packet);
-
-static int __init nf_log_common_init(void)
-{
- return 0;
-}
-
-static void __exit nf_log_common_exit(void) {}
-
-module_init(nf_log_common_init);
-module_exit(nf_log_common_exit);
-
-MODULE_LICENSE("GPL");
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.