Commit ea3bea3a authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller

tcp/dccp: constify rtx_synack() and friends

This is done to make sure we do not change listener socket
while sending SYNACK packets while socket lock is not held.
Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 802885fc
...@@ -32,7 +32,7 @@ struct request_sock_ops { ...@@ -32,7 +32,7 @@ struct request_sock_ops {
int obj_size; int obj_size;
struct kmem_cache *slab; struct kmem_cache *slab;
char *slab_name; char *slab_name;
int (*rtx_syn_ack)(struct sock *sk, int (*rtx_syn_ack)(const struct sock *sk,
struct request_sock *req); struct request_sock *req);
void (*send_ack)(struct sock *sk, struct sk_buff *skb, void (*send_ack)(struct sock *sk, struct sk_buff *skb,
struct request_sock *req); struct request_sock *req);
......
...@@ -1676,7 +1676,7 @@ int tcp4_proc_init(void); ...@@ -1676,7 +1676,7 @@ int tcp4_proc_init(void);
void tcp4_proc_exit(void); void tcp4_proc_exit(void);
#endif #endif
int tcp_rtx_synack(struct sock *sk, struct request_sock *req); int tcp_rtx_synack(const struct sock *sk, struct request_sock *req);
int tcp_conn_request(struct request_sock_ops *rsk_ops, int tcp_conn_request(struct request_sock_ops *rsk_ops,
const struct tcp_request_sock_ops *af_ops, const struct tcp_request_sock_ops *af_ops,
struct sock *sk, struct sk_buff *skb); struct sock *sk, struct sk_buff *skb);
......
...@@ -498,7 +498,7 @@ static struct dst_entry* dccp_v4_route_skb(struct net *net, struct sock *sk, ...@@ -498,7 +498,7 @@ static struct dst_entry* dccp_v4_route_skb(struct net *net, struct sock *sk,
return &rt->dst; return &rt->dst;
} }
static int dccp_v4_send_response(struct sock *sk, struct request_sock *req) static int dccp_v4_send_response(const struct sock *sk, struct request_sock *req)
{ {
int err = -1; int err = -1;
struct sk_buff *skb; struct sk_buff *skb;
......
...@@ -181,7 +181,7 @@ static void dccp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt, ...@@ -181,7 +181,7 @@ static void dccp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
} }
static int dccp_v6_send_response(struct sock *sk, struct request_sock *req) static int dccp_v6_send_response(const struct sock *sk, struct request_sock *req)
{ {
struct inet_request_sock *ireq = inet_rsk(req); struct inet_request_sock *ireq = inet_rsk(req);
struct ipv6_pinfo *np = inet6_sk(sk); struct ipv6_pinfo *np = inet6_sk(sk);
......
...@@ -3502,7 +3502,7 @@ void tcp_send_probe0(struct sock *sk) ...@@ -3502,7 +3502,7 @@ void tcp_send_probe0(struct sock *sk)
TCP_RTO_MAX); TCP_RTO_MAX);
} }
int tcp_rtx_synack(struct sock *sk, struct request_sock *req) int tcp_rtx_synack(const struct sock *sk, struct request_sock *req)
{ {
const struct tcp_request_sock_ops *af_ops = tcp_rsk(req)->af_specific; const struct tcp_request_sock_ops *af_ops = tcp_rsk(req)->af_specific;
struct flowi fl; struct flowi fl;
......
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