report and comment
Julian Elischer
julian at elischer.org
Wed Aug 20 08:12:33 UTC 2008
I have MOSTLY merged the last commit into
all the p4 branches..
progress should be good towards commit 1.5
something I just noticed....
in sys/netinet/tcp_subr.c
================================================
[...]
#endif * Locking of the global variables isn_secret, isn_last_reseed,
isn_offset,
* isn_offset_old, and isn_ctx is performed using the TCP pcbinfo
lock. In
* general, this means holding an exclusive (write) lock.
*/
#define ISN_BYTES_PER_SECOND 1048576
#define ISN_STATIC_INCREMENT 4096
#define ISN_RANDOM_INCREMENT (4096 - 1)
#ifndef VIMAGE
static u_char isn_secret[32];
static int isn_last_reseed;
static u_int32_t isn_offset, isn_offset_old;
static MD5_CTX isn_ctx;
#endif
tcp_seq
tcp_new_isn(struct tcpcb *tp)
{
[...]
================================================
and in sys/contrib/pf/net/pf_subr.c
================================================
[...]
* Locking of the global variables isn_secret, isn_last_reseed,
isn_offset,
* isn_offset_old, and isn_ctx is performed using the TCP pcbinfo
lock. In
* general, this means holding an exclusive (write) lock.
*/
#define ISN_BYTES_PER_SECOND 1048576
#define ISN_STATIC_INCREMENT 4096
#define ISN_RANDOM_INCREMENT (4096 - 1)
#ifndef VIMAGE
static u_char isn_secret[32];
static int isn_last_reseed;
static u_int32_t isn_offset;
static MD5_CTX isn_ctx;
#endif
u_int32_t
pf_new_isn(struct pf_state *s)
{
[...]
=====================================================
so we have the same global variables, static, in 2 places..
so one set should go in the pf vars and the other in the inet
vars. The first answers I think of are:
1/ rename one set
2/ make one of them a VV_ macro that goes elsewhere.
anyone have other suggestions?
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