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-rw-r--r--include/net/inet_sock.h172
1 files changed, 111 insertions, 61 deletions
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index 89cd011edb9..b1edf17bec0 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -17,19 +17,21 @@
#define _INET_SOCK_H
+#include <linux/kmemcheck.h>
#include <linux/string.h>
#include <linux/types.h>
#include <linux/jhash.h>
+#include <linux/netdevice.h>
#include <net/flow.h>
#include <net/sock.h>
#include <net/request_sock.h>
-#include <net/route.h>
+#include <net/netns/hash.h>
/** struct ip_options - IP Options
*
* @faddr - Saved first hop address
- * @is_data - Options in __data, rather than skb
+ * @nexthop - Saved nexthop address in LSRR and SSRR
* @is_strictroute - Strict source route
* @srr_is_hit - Packet destination addr was our one
* @is_changed - IP checksum more not valid
@@ -39,12 +41,12 @@
*/
struct ip_options {
__be32 faddr;
+ __be32 nexthop;
unsigned char optlen;
unsigned char srr;
unsigned char rr;
unsigned char ts;
- unsigned char is_data:1,
- is_strictroute:1,
+ unsigned char is_strictroute:1,
srr_is_hit:1,
is_changed:1,
rr_needaddr:1,
@@ -56,25 +58,39 @@ struct ip_options {
unsigned char __data[0];
};
-#define optlength(opt) (sizeof(struct ip_options) + opt->optlen)
+struct ip_options_rcu {
+ struct rcu_head rcu;
+ struct ip_options opt;
+};
+
+struct ip_options_data {
+ struct ip_options_rcu opt;
+ char data[40];
+};
struct inet_request_sock {
struct request_sock req;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
- u16 inet6_rsk_offset;
- /* 2 bytes hole, try to pack */
-#endif
- __be32 loc_addr;
- __be32 rmt_addr;
- __be16 rmt_port;
- u16 snd_wscale : 4,
- rcv_wscale : 4,
+#define ir_loc_addr req.__req_common.skc_rcv_saddr
+#define ir_rmt_addr req.__req_common.skc_daddr
+#define ir_num req.__req_common.skc_num
+#define ir_rmt_port req.__req_common.skc_dport
+#define ir_v6_rmt_addr req.__req_common.skc_v6_daddr
+#define ir_v6_loc_addr req.__req_common.skc_v6_rcv_saddr
+#define ir_iif req.__req_common.skc_bound_dev_if
+
+ kmemcheck_bitfield_begin(flags);
+ u16 snd_wscale : 4,
+ rcv_wscale : 4,
tstamp_ok : 1,
sack_ok : 1,
wscale_ok : 1,
ecn_ok : 1,
- acked : 1;
- struct ip_options *opt;
+ acked : 1,
+ no_srccheck: 1;
+ kmemcheck_bitfield_end(flags);
+ struct ip_options_rcu *opt;
+ struct sk_buff *pktopts;
+ u32 ir_mark;
};
static inline struct inet_request_sock *inet_rsk(const struct request_sock *sk)
@@ -82,6 +98,33 @@ static inline struct inet_request_sock *inet_rsk(const struct request_sock *sk)
return (struct inet_request_sock *)sk;
}
+static inline u32 inet_request_mark(struct sock *sk, struct sk_buff *skb)
+{
+ if (!sk->sk_mark && sock_net(sk)->ipv4.sysctl_tcp_fwmark_accept) {
+ return skb->mark;
+ } else {
+ return sk->sk_mark;
+ }
+}
+
+struct inet_cork {
+ unsigned int flags;
+ __be32 addr;
+ struct ip_options *opt;
+ unsigned int fragsize;
+ int length; /* Total length of all frames */
+ struct dst_entry *dst;
+ u8 tx_flags;
+ __u8 ttl;
+ __s16 tos;
+ char priority;
+};
+
+struct inet_cork_full {
+ struct inet_cork base;
+ struct flowi fl;
+};
+
struct ip_mc_socklist;
struct ipv6_pinfo;
struct rtable;
@@ -90,17 +133,18 @@ struct rtable;
*
* @sk - ancestor class
* @pinet6 - pointer to IPv6 control block
- * @daddr - Foreign IPv4 addr
- * @rcv_saddr - Bound local IPv4 addr
- * @dport - Destination port
- * @num - Local port
- * @saddr - Sending source
+ * @inet_daddr - Foreign IPv4 addr
+ * @inet_rcv_saddr - Bound local IPv4 addr
+ * @inet_dport - Destination port
+ * @inet_num - Local port
+ * @inet_saddr - Sending source
* @uc_ttl - Unicast TTL
- * @sport - Source port
- * @id - ID counter for DF pkts
+ * @inet_sport - Source port
+ * @inet_id - ID counter for DF pkts
* @tos - TOS
* @mc_ttl - Multicasting TTL
* @is_icsk - is this an inet_connection_sock?
+ * @uc_index - Unicast outgoing device index
* @mc_index - Multicast device index
* @mc_list - Group array
* @cork - info to build ip hdr on each ip frag while socket is corked
@@ -108,40 +152,41 @@ struct rtable;
struct inet_sock {
/* sk and pinet6 has to be the first two members of inet_sock */
struct sock sk;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
struct ipv6_pinfo *pinet6;
#endif
/* Socket demultiplex comparisons on incoming packets. */
- __be32 daddr;
- __be32 rcv_saddr;
- __be16 dport;
- __u16 num;
- __be32 saddr;
+#define inet_daddr sk.__sk_common.skc_daddr
+#define inet_rcv_saddr sk.__sk_common.skc_rcv_saddr
+#define inet_dport sk.__sk_common.skc_dport
+#define inet_num sk.__sk_common.skc_num
+
+ __be32 inet_saddr;
__s16 uc_ttl;
__u16 cmsg_flags;
- struct ip_options *opt;
- __be16 sport;
- __u16 id;
+ __be16 inet_sport;
+ __u16 inet_id;
+
+ struct ip_options_rcu __rcu *inet_opt;
+ int rx_dst_ifindex;
__u8 tos;
+ __u8 min_ttl;
__u8 mc_ttl;
__u8 pmtudisc;
__u8 recverr:1,
is_icsk:1,
freebind:1,
hdrincl:1,
- mc_loop:1;
+ mc_loop:1,
+ transparent:1,
+ mc_all:1,
+ nodefrag:1;
+ __u8 rcv_tos;
+ int uc_index;
int mc_index;
__be32 mc_addr;
- struct ip_mc_socklist *mc_list;
- struct {
- unsigned int flags;
- unsigned int fragsize;
- struct ip_options *opt;
- struct rtable *rt;
- int length; /* Total length of all frames */
- __be32 addr;
- struct flowi fl;
- } cork;
+ struct ip_mc_socklist __rcu *mc_list;
+ struct inet_cork_full cork;
};
#define IPCORK_OPT 1 /* ip-options has been held in ipcork.opt */
@@ -159,7 +204,7 @@ static inline void __inet_sk_copy_descendant(struct sock *sk_to,
memcpy(inet_sk(sk_to) + 1, inet_sk(sk_from) + 1,
sk_from->sk_prot->obj_size - ancestor_size);
}
-#if !(defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE))
+#if !(IS_ENABLED(CONFIG_IPV6))
static inline void inet_sk_copy_descendant(struct sock *sk_to,
const struct sock *sk_from)
{
@@ -167,35 +212,40 @@ static inline void inet_sk_copy_descendant(struct sock *sk_to,
}
#endif
-extern int inet_sk_rebuild_header(struct sock *sk);
-
-extern u32 inet_ehash_secret;
-extern void build_ehash_secret(void);
+int inet_sk_rebuild_header(struct sock *sk);
-static inline unsigned int inet_ehashfn(const __be32 laddr, const __u16 lport,
- const __be32 faddr, const __be16 fport)
+static inline unsigned int __inet_ehashfn(const __be32 laddr,
+ const __u16 lport,
+ const __be32 faddr,
+ const __be16 fport,
+ u32 initval)
{
return jhash_3words((__force __u32) laddr,
(__force __u32) faddr,
((__u32) lport) << 16 | (__force __u32)fport,
- inet_ehash_secret);
+ initval);
}
-static inline int inet_sk_ehashfn(const struct sock *sk)
+static inline struct request_sock *inet_reqsk_alloc(struct request_sock_ops *ops)
{
- const struct inet_sock *inet = inet_sk(sk);
- const __be32 laddr = inet->rcv_saddr;
- const __u16 lport = inet->num;
- const __be32 faddr = inet->daddr;
- const __be16 fport = inet->dport;
+ struct request_sock *req = reqsk_alloc(ops);
+ struct inet_request_sock *ireq = inet_rsk(req);
- return inet_ehashfn(laddr, lport, faddr, fport);
-}
+ if (req != NULL) {
+ kmemcheck_annotate_bitfield(ireq, flags);
+ ireq->opt = NULL;
+ }
+ return req;
+}
-static inline int inet_iif(const struct sk_buff *skb)
+static inline __u8 inet_sk_flowi_flags(const struct sock *sk)
{
- return ((struct rtable *)skb->dst)->rt_iif;
+ __u8 flags = 0;
+
+ if (inet_sk(sk)->transparent || inet_sk(sk)->hdrincl)
+ flags |= FLOWI_FLAG_ANYSRC;
+ return flags;
}
#endif /* _INET_SOCK_H */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 02:02:59 +0000