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Move the syncookie MD5 context from globals to the stack to make it MP safe.

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This commit is contained in:
Andre Oppermann 2006-06-22 15:07:45 +00:00
parent ecbbee76f3
commit 649ac0ce5f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=159859
1 changed files with 2 additions and 2 deletions
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4
sys/netinet/tcp_syncache.c
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@ -1289,8 +1289,6 @@ static struct {
static int tcp_msstab[] = { 0, 536, 1460, 8960 };
static MD5_CTX syn_ctx;
#define MD5Add(v) MD5Update(&syn_ctx, (u_char *)&v, sizeof(v))
struct md5_add {
@ -1329,6 +1327,7 @@ syncookie_generate(struct syncache *sc, u_int32_t *flowid)
u_int32_t data;
int idx, i;
struct md5_add add;
MD5_CTX syn_ctx;
idx = ((ticks << SYNCOOKIE_TIMESHIFT) / hz) & SYNCOOKIE_WNDMASK;
SYNCOOKIE_RLOCK(tcp_secret[idx]);
@ -1380,6 +1379,7 @@ syncookie_lookup(struct in_conninfo *inc, struct tcphdr *th, struct socket *so)
u_int32_t data;
int wnd, idx;
struct md5_add add;
MD5_CTX syn_ctx;
data = (th->th_ack - 1) ^ (th->th_seq - 1); /* remove ISS */
idx = data & SYNCOOKIE_WNDMASK;