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Diffstat (limited to 'net/ipv4/tcp_fastopen.c')
-rw-r--r--net/ipv4/tcp_fastopen.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/net/ipv4/tcp_fastopen.c b/net/ipv4/tcp_fastopen.c
index 8f7ef0ad80e5..ab7bd35bb312 100644
--- a/net/ipv4/tcp_fastopen.c
+++ b/net/ipv4/tcp_fastopen.c
@@ -58,23 +58,22 @@ error: kfree(ctx);
58 return err; 58 return err;
59} 59}
60 60
61/* Computes the fastopen cookie for the peer. 61/* Computes the fastopen cookie for the IP path.
62 * The peer address is a 128 bits long (pad with zeros for IPv4). 62 * The path is a 128 bits long (pad with zeros for IPv4).
63 * 63 *
64 * The caller must check foc->len to determine if a valid cookie 64 * The caller must check foc->len to determine if a valid cookie
65 * has been generated successfully. 65 * has been generated successfully.
66*/ 66*/
67void tcp_fastopen_cookie_gen(__be32 addr, struct tcp_fastopen_cookie *foc) 67void tcp_fastopen_cookie_gen(__be32 src, __be32 dst,
68 struct tcp_fastopen_cookie *foc)
68{ 69{
69 __be32 peer_addr[4] = { addr, 0, 0, 0 }; 70 __be32 path[4] = { src, dst, 0, 0 };
70 struct tcp_fastopen_context *ctx; 71 struct tcp_fastopen_context *ctx;
71 72
72 rcu_read_lock(); 73 rcu_read_lock();
73 ctx = rcu_dereference(tcp_fastopen_ctx); 74 ctx = rcu_dereference(tcp_fastopen_ctx);
74 if (ctx) { 75 if (ctx) {
75 crypto_cipher_encrypt_one(ctx->tfm, 76 crypto_cipher_encrypt_one(ctx->tfm, foc->val, (__u8 *)path);
76 foc->val,
77 (__u8 *)peer_addr);
78 foc->len = TCP_FASTOPEN_COOKIE_SIZE; 77 foc->len = TCP_FASTOPEN_COOKIE_SIZE;
79 } 78 }
80 rcu_read_unlock(); 79 rcu_read_unlock();