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nfqws: optimize

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bol-van
2025-10-17 14:20:54 +03:00
parent 078022bccf
commit 2daf764760
1 changed files with 13 additions and 6 deletions
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19
nfq/desync.c
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@@ -932,14 +932,19 @@ static bool runtime_tls_mod(int fake_n, const struct fake_tls_mod_cache *modcach
return b;
}
static void rewrite_tcp_flags(uint16_t *flags, uint16_t unset, uint16_t set, const char *what)
static bool rewrite_tcp_flags(uint16_t *flags, uint16_t unset, uint16_t set, const char *what)
{
if (set || unset)
{
uint16_t fl_new = *flags & ~unset | set;
DLOG("rewrite %s tcp flags 0x%03X => 0x%03X\n", what, *flags, fl_new);
*flags = fl_new;
if (fl_new!=*flags)
{
DLOG("rewrite %s tcp flags 0x%03X => 0x%03X\n", what, *flags, fl_new);
*flags = fl_new;
return true;
}
}
return false;
}
static uint8_t orig_mod(const struct desync_profile *dp, const t_ctrack *ctrack, struct dissect *dis)
@@ -963,9 +968,11 @@ static uint8_t orig_mod(const struct desync_profile *dp, const t_ctrack *ctrack,
if (dis->tcp)
{
uint16_t flags = get_tcp_flags(dis->tcp);
rewrite_tcp_flags(&flags, dp->orig_tcp_flags_unset, dp->orig_tcp_flags_set, "original");
apply_tcp_flags(dis->tcp,flags);
bModded = true;
if (rewrite_tcp_flags(&flags, dp->orig_tcp_flags_unset, dp->orig_tcp_flags_set, "original"))
{
apply_tcp_flags(dis->tcp,flags);
bModded = true;
}
}
}
return bModded;