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Move fd into frec_src, fixes 15b60ddf93

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If identical queries from IPv4 and IPv6 sources are combined by the
new code added in 15b60ddf93 then replies
can end up being sent via the wrong family of socket. The ->fd
should be per query, not per-question.

In bind-interfaces mode, this could also result in replies being sent
via the wrong socket even when IPv4/IPV6 issues are not in play.
This commit is contained in:
Simon Kelley
2021-01-22 16:49:12 +00:00
parent 327bbc92bc
commit 04490bf622
2 changed files with 4 additions and 3 deletions
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3
src/dnsmasq.h
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@@ -664,6 +664,7 @@ struct frec {
union mysockaddr source;
union all_addr dest;
unsigned int iface, log_id;
int fd;
unsigned short orig_id;
struct frec_src *next;
} frec_src;
@@ -671,7 +672,7 @@ struct frec {
struct randfd *rfd4;
struct randfd *rfd6;
unsigned short new_id;
int fd, forwardall, flags;
int forwardall, flags;
time_t time;
unsigned char *hash[HASH_SIZE];
#ifdef HAVE_DNSSEC