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socket: make sure that the name for per-connection services are unique

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If a client connects to us repeatedly always using the same source port
and we instantiate a service for the incoming connection this might
clash with an old instance. Hence, include the connection number, the
same way we do it for AF_UNIX to make connections unique.

https://bugs.freedesktop.org/show_bug.cgi?id=45297
This commit is contained in:
Lennart Poettering 2012-03-14 03:07:26 +01:00
parent 9586cdfab6
commit 77b088c211
1 changed files with 6 additions and 3 deletions
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9
src/socket.c
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@ -564,7 +564,8 @@ static int instance_from_socket(int fd, unsigned nr, char **instance) {
b = ntohl(remote.in.sin_addr.s_addr);
if (asprintf(&r,
"%u.%u.%u.%u:%u-%u.%u.%u.%u:%u",
"%u-%u.%u.%u.%u:%u-%u.%u.%u.%u:%u",
nr,
a >> 24, (a >> 16) & 0xFF, (a >> 8) & 0xFF, a & 0xFF,
ntohs(local.in.sin_port),
b >> 24, (b >> 16) & 0xFF, (b >> 8) & 0xFF, b & 0xFF,
@ -586,7 +587,8 @@ static int instance_from_socket(int fd, unsigned nr, char **instance) {
*b = remote.in6.sin6_addr.s6_addr+12;
if (asprintf(&r,
"%u.%u.%u.%u:%u-%u.%u.%u.%u:%u",
"%u-%u.%u.%u.%u:%u-%u.%u.%u.%u:%u",
nr,
a[0], a[1], a[2], a[3],
ntohs(local.in6.sin6_port),
b[0], b[1], b[2], b[3],
@ -596,7 +598,8 @@ static int instance_from_socket(int fd, unsigned nr, char **instance) {
char a[INET6_ADDRSTRLEN], b[INET6_ADDRSTRLEN];
if (asprintf(&r,
"%s:%u-%s:%u",
"%u-%s:%u-%s:%u",
nr,
inet_ntop(AF_INET6, &local.in6.sin6_addr, a, sizeof(a)),
ntohs(local.in6.sin6_port),
inet_ntop(AF_INET6, &remote.in6.sin6_addr, b, sizeof(b)),