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Merge branch 'net-constify-struct-net-parameter-of-socket-lookups'

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Eric Dumazet says:

====================
net: constify 'struct net' parameter of socket lookups

We should keep const qualifiers whenever possible.

This series should remove the need for Tom patch in :

Link: https://lore.kernel.org/netdev/20240731172332.683815-2-tom@herbertland.com/
====================

Link: https://patch.msgid.link/20240802134029.3748005-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski
2024-08-05 16:22:51 -07:00
parent 10a6545f0b 87d973e8dd
commit 0143ed3205
10 changed files with 47 additions and 43 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
include/linux/filter.h
View File

@@ -1616,7 +1616,7 @@ extern struct static_key_false bpf_sk_lookup_enabled;
_all_pass || _selected_sk ? SK_PASS : SK_DROP; \
})
static inline bool bpf_sk_lookup_run_v4(struct net *net, int protocol,
static inline bool bpf_sk_lookup_run_v4(const struct net *net, int protocol,
const __be32 saddr, const __be16 sport,
const __be32 daddr, const u16 dport,
const int ifindex, struct sock **psk)
@@ -1653,7 +1653,7 @@ static inline bool bpf_sk_lookup_run_v4(struct net *net, int protocol,
}
#if IS_ENABLED(CONFIG_IPV6)
static inline bool bpf_sk_lookup_run_v6(struct net *net, int protocol,
static inline bool bpf_sk_lookup_run_v6(const struct net *net, int protocol,
const struct in6_addr *saddr,
const __be16 sport,
const struct in6_addr *daddr,

14
include/net/inet6_hashtables.h
View File

@@ -40,7 +40,7 @@ static inline unsigned int __inet6_ehashfn(const u32 lhash,
*
* The sockhash lock must be held as a reader here.
*/
struct sock *__inet6_lookup_established(struct net *net,
struct sock *__inet6_lookup_established(const struct net *net,
struct inet_hashinfo *hashinfo,
const struct in6_addr *saddr,
const __be16 sport,
@@ -56,7 +56,7 @@ inet6_ehashfn_t inet6_ehashfn;
INDIRECT_CALLABLE_DECLARE(inet6_ehashfn_t udp6_ehashfn);
struct sock *inet6_lookup_reuseport(struct net *net, struct sock *sk,
struct sock *inet6_lookup_reuseport(const struct net *net, struct sock *sk,
struct sk_buff *skb, int doff,
const struct in6_addr *saddr,
__be16 sport,
@@ -64,7 +64,7 @@ struct sock *inet6_lookup_reuseport(struct net *net, struct sock *sk,
unsigned short hnum,
inet6_ehashfn_t *ehashfn);
struct sock *inet6_lookup_listener(struct net *net,
struct sock *inet6_lookup_listener(const struct net *net,
struct inet_hashinfo *hashinfo,
struct sk_buff *skb, int doff,
const struct in6_addr *saddr,
@@ -73,7 +73,7 @@ struct sock *inet6_lookup_listener(struct net *net,
const unsigned short hnum,
const int dif, const int sdif);
struct sock *inet6_lookup_run_sk_lookup(struct net *net,
struct sock *inet6_lookup_run_sk_lookup(const struct net *net,
int protocol,
struct sk_buff *skb, int doff,
const struct in6_addr *saddr,
@@ -82,7 +82,7 @@ struct sock *inet6_lookup_run_sk_lookup(struct net *net,
const u16 hnum, const int dif,
inet6_ehashfn_t *ehashfn);
static inline struct sock *__inet6_lookup(struct net *net,
static inline struct sock *__inet6_lookup(const struct net *net,
struct inet_hashinfo *hashinfo,
struct sk_buff *skb, int doff,
const struct in6_addr *saddr,
@@ -167,7 +167,7 @@ static inline struct sock *__inet6_lookup_skb(struct inet_hashinfo *hashinfo,
iif, sdif, refcounted);
}
struct sock *inet6_lookup(struct net *net, struct inet_hashinfo *hashinfo,
struct sock *inet6_lookup(const struct net *net, struct inet_hashinfo *hashinfo,
struct sk_buff *skb, int doff,
const struct in6_addr *saddr, const __be16 sport,
const struct in6_addr *daddr, const __be16 dport,
@@ -175,7 +175,7 @@ struct sock *inet6_lookup(struct net *net, struct inet_hashinfo *hashinfo,
int inet6_hash(struct sock *sk);
static inline bool inet6_match(struct net *net, const struct sock *sk,
static inline bool inet6_match(const struct net *net, const struct sock *sk,
const struct in6_addr *saddr,
const struct in6_addr *daddr,
const __portpair ports,

10
include/net/inet_hashtables.h
View File

@@ -304,7 +304,7 @@ int __inet_hash(struct sock *sk, struct sock *osk);
int inet_hash(struct sock *sk);
void inet_unhash(struct sock *sk);
struct sock *__inet_lookup_listener(struct net *net,
struct sock *__inet_lookup_listener(const struct net *net,
struct inet_hashinfo *hashinfo,
struct sk_buff *skb, int doff,
const __be32 saddr, const __be16 sport,
@@ -351,7 +351,7 @@ static inline struct sock *inet_lookup_listener(struct net *net,
((__force __u64)(__be32)(__saddr)))
#endif /* __BIG_ENDIAN */
static inline bool inet_match(struct net *net, const struct sock *sk,
static inline bool inet_match(const struct net *net, const struct sock *sk,
const __addrpair cookie, const __portpair ports,
int dif, int sdif)
{
@@ -368,7 +368,7 @@ static inline bool inet_match(struct net *net, const struct sock *sk,
/* Sockets in TCP_CLOSE state are _always_ taken out of the hash, so we need
* not check it for lookups anymore, thanks Alexey. -DaveM
*/
struct sock *__inet_lookup_established(struct net *net,
struct sock *__inet_lookup_established(const struct net *net,
struct inet_hashinfo *hashinfo,
const __be32 saddr, const __be16 sport,
const __be32 daddr, const u16 hnum,
@@ -382,13 +382,13 @@ inet_ehashfn_t inet_ehashfn;
INDIRECT_CALLABLE_DECLARE(inet_ehashfn_t udp_ehashfn);
struct sock *inet_lookup_reuseport(struct net *net, struct sock *sk,
struct sock *inet_lookup_reuseport(const struct net *net, struct sock *sk,
struct sk_buff *skb, int doff,
__be32 saddr, __be16 sport,
__be32 daddr, unsigned short hnum,
inet_ehashfn_t *ehashfn);
struct sock *inet_lookup_run_sk_lookup(struct net *net,
struct sock *inet_lookup_run_sk_lookup(const struct net *net,
int protocol,
struct sk_buff *skb, int doff,
__be32 saddr, __be16 sport,

3
include/net/inet_sock.h
View File

@@ -150,7 +150,8 @@ static inline bool inet_bound_dev_eq(bool l3mdev_accept, int bound_dev_if,
return bound_dev_if == dif || bound_dev_if == sdif;
}
static inline bool inet_sk_bound_dev_eq(struct net *net, int bound_dev_if,
static inline bool inet_sk_bound_dev_eq(const struct net *net,
int bound_dev_if,
int dif, int sdif)
{
#if IS_ENABLED(CONFIG_NET_L3_MASTER_DEV)

2
include/net/ipv6_stubs.h
View File

@@ -82,7 +82,7 @@ extern const struct ipv6_stub *ipv6_stub __read_mostly;
struct ipv6_bpf_stub {
int (*inet6_bind)(struct sock *sk, struct sockaddr *uaddr, int addr_len,
u32 flags);
struct sock *(*udp6_lib_lookup)(struct net *net,
struct sock *(*udp6_lib_lookup)(const struct net *net,
const struct in6_addr *saddr, __be16 sport,
const struct in6_addr *daddr, __be16 dport,
int dif, int sdif, struct udp_table *tbl,

14
include/net/udp.h
View File

@@ -79,7 +79,8 @@ struct udp_table {
extern struct udp_table udp_table;
void udp_table_init(struct udp_table *, const char *);
static inline struct udp_hslot *udp_hashslot(struct udp_table *table,
struct net *net, unsigned int num)
const struct net *net,
unsigned int num)
{
return &table->hash[udp_hashfn(net, num, table->mask)];
}
@@ -245,7 +246,7 @@ static inline int udp_rqueue_get(struct sock *sk)
return sk_rmem_alloc_get(sk) - READ_ONCE(udp_sk(sk)->forward_deficit);
}
static inline bool udp_sk_bound_dev_eq(struct net *net, int bound_dev_if,
static inline bool udp_sk_bound_dev_eq(const struct net *net, int bound_dev_if,
int dif, int sdif)
{
#if IS_ENABLED(CONFIG_NET_L3_MASTER_DEV)
@@ -296,18 +297,19 @@ int udp_lib_getsockopt(struct sock *sk, int level, int optname,
int udp_lib_setsockopt(struct sock *sk, int level, int optname,
sockptr_t optval, unsigned int optlen,
int (*push_pending_frames)(struct sock *));
struct sock *udp4_lib_lookup(struct net *net, __be32 saddr, __be16 sport,
struct sock *udp4_lib_lookup(const struct net *net, __be32 saddr, __be16 sport,
__be32 daddr, __be16 dport, int dif);
struct sock *__udp4_lib_lookup(struct net *net, __be32 saddr, __be16 sport,
struct sock *__udp4_lib_lookup(const struct net *net, __be32 saddr,
__be16 sport,
__be32 daddr, __be16 dport, int dif, int sdif,
struct udp_table *tbl, struct sk_buff *skb);
struct sock *udp4_lib_lookup_skb(const struct sk_buff *skb,
__be16 sport, __be16 dport);
struct sock *udp6_lib_lookup(struct net *net,
struct sock *udp6_lib_lookup(const struct net *net,
const struct in6_addr *saddr, __be16 sport,
const struct in6_addr *daddr, __be16 dport,
int dif);
struct sock *__udp6_lib_lookup(struct net *net,
struct sock *__udp6_lib_lookup(const struct net *net,
const struct in6_addr *saddr, __be16 sport,
const struct in6_addr *daddr, __be16 dport,
int dif, int sdif, struct udp_table *tbl,

12
net/ipv4/inet_hashtables.c
View File

@@ -310,7 +310,7 @@ inet_lhash2_bucket_sk(struct inet_hashinfo *h, struct sock *sk)
return inet_lhash2_bucket(h, hash);
}
static inline int compute_score(struct sock *sk, struct net *net,
static inline int compute_score(struct sock *sk, const struct net *net,
const unsigned short hnum, const __be32 daddr,
const int dif, const int sdif)
{
@@ -348,7 +348,7 @@ static inline int compute_score(struct sock *sk, struct net *net,
* Return: NULL if sk doesn't have SO_REUSEPORT set, otherwise a pointer to
* the selected sock or an error.
*/
struct sock *inet_lookup_reuseport(struct net *net, struct sock *sk,
struct sock *inet_lookup_reuseport(const struct net *net, struct sock *sk,
struct sk_buff *skb, int doff,
__be32 saddr, __be16 sport,
__be32 daddr, unsigned short hnum,
@@ -374,7 +374,7 @@ EXPORT_SYMBOL_GPL(inet_lookup_reuseport);
*/
/* called with rcu_read_lock() : No refcount taken on the socket */
static struct sock *inet_lhash2_lookup(struct net *net,
static struct sock *inet_lhash2_lookup(const struct net *net,
struct inet_listen_hashbucket *ilb2,
struct sk_buff *skb, int doff,
const __be32 saddr, __be16 sport,
@@ -401,7 +401,7 @@ static struct sock *inet_lhash2_lookup(struct net *net,
return result;
}
struct sock *inet_lookup_run_sk_lookup(struct net *net,
struct sock *inet_lookup_run_sk_lookup(const struct net *net,
int protocol,
struct sk_buff *skb, int doff,
__be32 saddr, __be16 sport,
@@ -423,7 +423,7 @@ struct sock *inet_lookup_run_sk_lookup(struct net *net,
return sk;
}
struct sock *__inet_lookup_listener(struct net *net,
struct sock *__inet_lookup_listener(const struct net *net,
struct inet_hashinfo *hashinfo,
struct sk_buff *skb, int doff,
const __be32 saddr, __be16 sport,
@@ -488,7 +488,7 @@ void sock_edemux(struct sk_buff *skb)
}
EXPORT_SYMBOL(sock_edemux);
struct sock *__inet_lookup_established(struct net *net,
struct sock *__inet_lookup_established(const struct net *net,
struct inet_hashinfo *hashinfo,
const __be32 saddr, const __be16 sport,
const __be32 daddr, const u16 hnum,

8
net/ipv4/udp.c
View File

@@ -365,7 +365,7 @@ int udp_v4_get_port(struct sock *sk, unsigned short snum)
return udp_lib_get_port(sk, snum, hash2_nulladdr);
}
static int compute_score(struct sock *sk, struct net *net,
static int compute_score(struct sock *sk, const struct net *net,
__be32 saddr, __be16 sport,
__be32 daddr, unsigned short hnum,
int dif, int sdif)
@@ -420,7 +420,7 @@ u32 udp_ehashfn(const struct net *net, const __be32 laddr, const __u16 lport,
}
/* called with rcu_read_lock() */
static struct sock *udp4_lib_lookup2(struct net *net,
static struct sock *udp4_lib_lookup2(const struct net *net,
__be32 saddr, __be16 sport,
__be32 daddr, unsigned int hnum,
int dif, int sdif,
@@ -480,7 +480,7 @@ static struct sock *udp4_lib_lookup2(struct net *net,
/* UDP is nearly always wildcards out the wazoo, it makes no sense to try
* harder than this. -DaveM
*/
struct sock *__udp4_lib_lookup(struct net *net, __be32 saddr,
struct sock *__udp4_lib_lookup(const struct net *net, __be32 saddr,
__be16 sport, __be32 daddr, __be16 dport, int dif,
int sdif, struct udp_table *udptable, struct sk_buff *skb)
{
@@ -561,7 +561,7 @@ struct sock *udp4_lib_lookup_skb(const struct sk_buff *skb,
* Does increment socket refcount.
*/
#if IS_ENABLED(CONFIG_NF_TPROXY_IPV4) || IS_ENABLED(CONFIG_NF_SOCKET_IPV4)
struct sock *udp4_lib_lookup(struct net *net, __be32 saddr, __be16 sport,
struct sock *udp4_lib_lookup(const struct net *net, __be32 saddr, __be16 sport,
__be32 daddr, __be16 dport, int dif)
{
struct sock *sk;

15
net/ipv6/inet6_hashtables.c
View File

@@ -46,7 +46,7 @@ EXPORT_SYMBOL_GPL(inet6_ehashfn);
*
* The sockhash lock must be held as a reader here.
*/
struct sock *__inet6_lookup_established(struct net *net,
struct sock *__inet6_lookup_established(const struct net *net,
struct inet_hashinfo *hashinfo,
const struct in6_addr *saddr,
const __be16 sport,
@@ -89,7 +89,7 @@ struct sock *__inet6_lookup_established(struct net *net,
}
EXPORT_SYMBOL(__inet6_lookup_established);
static inline int compute_score(struct sock *sk, struct net *net,
static inline int compute_score(struct sock *sk, const struct net *net,
const unsigned short hnum,
const struct in6_addr *daddr,
const int dif, const int sdif)
@@ -126,7 +126,7 @@ static inline int compute_score(struct sock *sk, struct net *net,
* Return: NULL if sk doesn't have SO_REUSEPORT set, otherwise a pointer to
* the selected sock or an error.
*/
struct sock *inet6_lookup_reuseport(struct net *net, struct sock *sk,
struct sock *inet6_lookup_reuseport(const struct net *net, struct sock *sk,
struct sk_buff *skb, int doff,
const struct in6_addr *saddr,
__be16 sport,
@@ -147,7 +147,7 @@ struct sock *inet6_lookup_reuseport(struct net *net, struct sock *sk,
EXPORT_SYMBOL_GPL(inet6_lookup_reuseport);
/* called with rcu_read_lock() */
static struct sock *inet6_lhash2_lookup(struct net *net,
static struct sock *inet6_lhash2_lookup(const struct net *net,
struct inet_listen_hashbucket *ilb2,
struct sk_buff *skb, int doff,
const struct in6_addr *saddr,
@@ -174,7 +174,7 @@ static struct sock *inet6_lhash2_lookup(struct net *net,
return result;
}
struct sock *inet6_lookup_run_sk_lookup(struct net *net,
struct sock *inet6_lookup_run_sk_lookup(const struct net *net,
int protocol,
struct sk_buff *skb, int doff,
const struct in6_addr *saddr,
@@ -199,7 +199,7 @@ struct sock *inet6_lookup_run_sk_lookup(struct net *net,
}
EXPORT_SYMBOL_GPL(inet6_lookup_run_sk_lookup);
struct sock *inet6_lookup_listener(struct net *net,
struct sock *inet6_lookup_listener(const struct net *net,
struct inet_hashinfo *hashinfo,
struct sk_buff *skb, int doff,
const struct in6_addr *saddr,
@@ -243,7 +243,8 @@ struct sock *inet6_lookup_listener(struct net *net,
}
EXPORT_SYMBOL_GPL(inet6_lookup_listener);
struct sock *inet6_lookup(struct net *net, struct inet_hashinfo *hashinfo,
struct sock *inet6_lookup(const struct net *net,
struct inet_hashinfo *hashinfo,
struct sk_buff *skb, int doff,
const struct in6_addr *saddr, const __be16 sport,
const struct in6_addr *daddr, const __be16 dport,

8
net/ipv6/udp.c
View File

@@ -114,7 +114,7 @@ void udp_v6_rehash(struct sock *sk)
udp_lib_rehash(sk, new_hash);
}
static int compute_score(struct sock *sk, struct net *net,
static int compute_score(struct sock *sk, const struct net *net,
const struct in6_addr *saddr, __be16 sport,
const struct in6_addr *daddr, unsigned short hnum,
int dif, int sdif)
@@ -160,7 +160,7 @@ static int compute_score(struct sock *sk, struct net *net,
}
/* called with rcu_read_lock() */
static struct sock *udp6_lib_lookup2(struct net *net,
static struct sock *udp6_lib_lookup2(const struct net *net,
const struct in6_addr *saddr, __be16 sport,
const struct in6_addr *daddr, unsigned int hnum,
int dif, int sdif, struct udp_hslot *hslot2,
@@ -217,7 +217,7 @@ static struct sock *udp6_lib_lookup2(struct net *net,
}
/* rcu_read_lock() must be held */
struct sock *__udp6_lib_lookup(struct net *net,
struct sock *__udp6_lib_lookup(const struct net *net,
const struct in6_addr *saddr, __be16 sport,
const struct in6_addr *daddr, __be16 dport,
int dif, int sdif, struct udp_table *udptable,
@@ -300,7 +300,7 @@ struct sock *udp6_lib_lookup_skb(const struct sk_buff *skb,
* Does increment socket refcount.
*/
#if IS_ENABLED(CONFIG_NF_TPROXY_IPV6) || IS_ENABLED(CONFIG_NF_SOCKET_IPV6)
struct sock *udp6_lib_lookup(struct net *net, const struct in6_addr *saddr, __be16 sport,
struct sock *udp6_lib_lookup(const struct net *net, const struct in6_addr *saddr, __be16 sport,
const struct in6_addr *daddr, __be16 dport, int dif)
{
struct sock *sk;