diff options
Diffstat (limited to 'net/core/secure_seq.c')
| -rw-r--r-- | net/core/secure_seq.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/net/core/secure_seq.c b/net/core/secure_seq.c index fd3ce461fbe6..88a8e429fc3e 100644 --- a/net/core/secure_seq.c +++ b/net/core/secure_seq.c @@ -12,6 +12,7 @@ #include <net/secure_seq.h> #if IS_ENABLED(CONFIG_IPV6) || IS_ENABLED(CONFIG_INET) +#include <net/tcp.h> #define NET_SECRET_SIZE (MD5_MESSAGE_BYTES / 4) static u32 net_secret[NET_SECRET_SIZE] ____cacheline_aligned; @@ -40,8 +41,8 @@ static u32 seq_scale(u32 seq) #endif #if IS_ENABLED(CONFIG_IPV6) -__u32 secure_tcpv6_sequence_number(const __be32 *saddr, const __be32 *daddr, - __be16 sport, __be16 dport) +u32 secure_tcpv6_sequence_number(const __be32 *saddr, const __be32 *daddr, + __be16 sport, __be16 dport, u32 *tsoff) { u32 secret[MD5_MESSAGE_BYTES / 4]; u32 hash[MD5_DIGEST_WORDS]; @@ -58,6 +59,7 @@ __u32 secure_tcpv6_sequence_number(const __be32 *saddr, const __be32 *daddr, md5_transform(hash, secret); + *tsoff = sysctl_tcp_timestamps == 1 ? hash[1] : 0; return seq_scale(hash[0]); } EXPORT_SYMBOL(secure_tcpv6_sequence_number); @@ -86,8 +88,8 @@ EXPORT_SYMBOL(secure_ipv6_port_ephemeral); #ifdef CONFIG_INET -__u32 secure_tcp_sequence_number(__be32 saddr, __be32 daddr, - __be16 sport, __be16 dport) +u32 secure_tcp_sequence_number(__be32 saddr, __be32 daddr, + __be16 sport, __be16 dport, u32 *tsoff) { u32 hash[MD5_DIGEST_WORDS]; @@ -99,6 +101,7 @@ __u32 secure_tcp_sequence_number(__be32 saddr, __be32 daddr, md5_transform(hash, net_secret); + *tsoff = sysctl_tcp_timestamps == 1 ? hash[1] : 0; return seq_scale(hash[0]); } |