Merge branch 'net-next-2.6-misc-20080612a' of... (e6e30add) · Commits · EulixOS / Software / Kernel

include/net/addrconf.h

+2 −1

Original line number	Diff line number	Diff line
		@@ -121,7 +121,8 @@ static inline int addrconf_finite_timeout(unsigned long timeout)
		*/
		extern int ipv6_addr_label_init(void);
		extern void ipv6_addr_label_rtnl_register(void);
		extern u32 ipv6_addr_label(const struct in6_addr *addr,
		extern u32 ipv6_addr_label(struct net *net,
		const struct in6_addr *addr,
		int type, int ifindex);

		/*

include/net/if_inet6.h

+0 −1

Original line number	Diff line number	Diff line
		@@ -148,7 +148,6 @@ struct ifacaddr6
		#define IFA_HOST IPV6_ADDR_LOOPBACK
		#define IFA_LINK IPV6_ADDR_LINKLOCAL
		#define IFA_SITE IPV6_ADDR_SITELOCAL
		#define IFA_GLOBAL 0x0000U

		struct ipv6_devstat {
		struct proc_dir_entry *proc_dir_entry;

include/net/tcp.h

+19 −2

Original line number	Diff line number	Diff line
		@@ -399,6 +399,8 @@ extern void tcp_parse_options(struct sk_buff *skb,
		struct tcp_options_received *opt_rx,
		int estab);

		extern u8 tcp_parse_md5sig_option(struct tcphdr th);

		/*
		* TCP v4 functions exported for the inet6 API
		*/
		@@ -1115,13 +1117,19 @@ struct tcp_md5sig_pool {
		#define TCP_MD5SIG_MAXKEYS (~(u32)0) /* really?! */

		/* - functions */
		extern int tcp_calc_md5_hash(char *md5_hash,
		struct tcp_md5sig_key *key,
		int bplen,
		struct tcphdr *th,
		unsigned int tcplen,
		struct tcp_md5sig_pool *hp);

		extern int tcp_v4_calc_md5_hash(char *md5_hash,
		struct tcp_md5sig_key *key,
		struct sock *sk,
		struct dst_entry *dst,
		struct request_sock *req,
		struct tcphdr *th,
		int protocol,
		unsigned int tcplen);
		extern struct tcp_md5sig_key tcp_v4_md5_lookup(struct sock sk,
		struct sock *addr_sk);
		@@ -1134,6 +1142,16 @@ extern int tcp_v4_md5_do_add(struct sock *sk,
		extern int tcp_v4_md5_do_del(struct sock *sk,
		__be32 addr);

		#ifdef CONFIG_TCP_MD5SIG
		#define tcp_twsk_md5_key(twsk) ((twsk)->tw_md5_keylen ? \
		&(struct tcp_md5sig_key) { \
		.key = (twsk)->tw_md5_key, \
		.keylen = (twsk)->tw_md5_keylen, \
		} : NULL)
		#else
		#define tcp_twsk_md5_key(twsk) NULL
		#endif

		extern struct tcp_md5sig_pool **tcp_alloc_md5sig_pool(void);
		extern void tcp_free_md5sig_pool(void);

		@@ -1371,7 +1389,6 @@ struct tcp_sock_af_ops {
		struct dst_entry *dst,
		struct request_sock *req,
		struct tcphdr *th,
		int protocol,
		unsigned int len);
		int (md5_add) (struct sock sk,
		struct sock *addr_sk,

net/ipv4/tcp.c

+70 −0

Original line number	Diff line number	Diff line
		@@ -2457,6 +2457,76 @@ static unsigned long tcp_md5sig_users;
		static struct tcp_md5sig_pool **tcp_md5sig_pool;
		static DEFINE_SPINLOCK(tcp_md5sig_pool_lock);

		int tcp_calc_md5_hash(char md5_hash, struct tcp_md5sig_key key,
		int bplen,
		struct tcphdr *th, unsigned int tcplen,
		struct tcp_md5sig_pool *hp)
		{
		struct scatterlist sg[4];
		__u16 data_len;
		int block = 0;
		__sum16 cksum;
		struct hash_desc *desc = &hp->md5_desc;
		int err;
		unsigned int nbytes = 0;

		sg_init_table(sg, 4);

		/* 1. The TCP pseudo-header */
		sg_set_buf(&sg[block++], &hp->md5_blk, bplen);
		nbytes += bplen;

		/* 2. The TCP header, excluding options, and assuming a
		* checksum of zero
		*/
		cksum = th->check;
		th->check = 0;
		sg_set_buf(&sg[block++], th, sizeof(*th));
		nbytes += sizeof(*th);

		/* 3. The TCP segment data (if any) */
		data_len = tcplen - (th->doff << 2);
		if (data_len > 0) {
		u8 data = (u8 )th + (th->doff << 2);
		sg_set_buf(&sg[block++], data, data_len);
		nbytes += data_len;
		}

		/* 4. an independently-specified key or password, known to both
		* TCPs and presumably connection-specific
		*/
		sg_set_buf(&sg[block++], key->key, key->keylen);
		nbytes += key->keylen;

		sg_mark_end(&sg[block - 1]);

		/* Now store the hash into the packet */
		err = crypto_hash_init(desc);
		if (err) {
		if (net_ratelimit())
		printk(KERN_WARNING "%s(): hash_init failed\n", __func__);
		return -1;
		}
		err = crypto_hash_update(desc, sg, nbytes);
		if (err) {
		if (net_ratelimit())
		printk(KERN_WARNING "%s(): hash_update failed\n", __func__);
		return -1;
		}
		err = crypto_hash_final(desc, md5_hash);
		if (err) {
		if (net_ratelimit())
		printk(KERN_WARNING "%s(): hash_final failed\n", __func__);
		return -1;
		}

		/* Reset header */
		th->check = cksum;

		return 0;
		}
		EXPORT_SYMBOL(tcp_calc_md5_hash);

		static void __tcp_free_md5sig_pool(struct tcp_md5sig_pool **pool)
		{
		int cpu;

net/ipv4/tcp_input.c

+40 −0

Original line number	Diff line number	Diff line
		@@ -3448,6 +3448,43 @@ static int tcp_fast_parse_options(struct sk_buff skb, struct tcphdr th,
		return 1;
		}

		#ifdef CONFIG_TCP_MD5SIG
		/*
		* Parse MD5 Signature option
		*/
		u8 tcp_parse_md5sig_option(struct tcphdr th)
		{
		int length = (th->doff << 2) - sizeof (*th);
		u8 ptr = (u8)(th + 1);

		/* If the TCP option is too short, we can short cut */
		if (length < TCPOLEN_MD5SIG)
		return NULL;

		while (length > 0) {
		int opcode = *ptr++;
		int opsize;

		switch(opcode) {
		case TCPOPT_EOL:
		return NULL;
		case TCPOPT_NOP:
		length--;
		continue;
		default:
		opsize = *ptr++;
		if (opsize < 2 \|\| opsize > length)
		return NULL;
		if (opcode == TCPOPT_MD5SIG)
		return ptr;
		}
		ptr += opsize - 2;
		length -= opsize;
		}
		return NULL;
		}
		#endif

		static inline void tcp_store_ts_recent(struct tcp_sock *tp)
		{
		tp->rx_opt.ts_recent = tp->rx_opt.rcv_tsval;
		@@ -5465,6 +5502,9 @@ EXPORT_SYMBOL(sysctl_tcp_ecn);
		EXPORT_SYMBOL(sysctl_tcp_reordering);
		EXPORT_SYMBOL(sysctl_tcp_adv_win_scale);
		EXPORT_SYMBOL(tcp_parse_options);
		#ifdef CONFIG_TCP_MD5SIG
		EXPORT_SYMBOL(tcp_parse_md5sig_option);
		#endif
		EXPORT_SYMBOL(tcp_rcv_established);
		EXPORT_SYMBOL(tcp_rcv_state_process);
		EXPORT_SYMBOL(tcp_initialize_rcv_mss);