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Handle kernels with no ipv6 support

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If the ipv6 kernel module is not loaded, then we get this when starting
a virtual network:

  libvir: Network Config error :
  cannot enable /proc/sys/net/ipv6/conf/virbr0/disable_ipv6:
  No such file or directory

If disable_ipv6 is not present, we should just merrily continue on our
way.

* src/network_driver.c: make networkDisableIPV6() not fail if the kernel
  has no ipv6 support
This commit is contained in:
Mark McLoughlin 2009-08-10 11:16:37 +01:00
parent f9bfa10797
commit f5a8f969dd
1 changed files with 6 additions and 0 deletions

6
src/network_driver.c

@ -801,6 +801,12 @@ static int networkDisableIPV6(virConnectPtr conn,
goto cleanup;
}
if (access(field, W_OK) < 0 && errno == ENOENT) {
VIR_DEBUG("ipv6 appears to already be disabled on %s", network->def->bridge);
ret = 0;
goto cleanup;
}
if (virFileWriteStr(field, "1") < 0) {
virReportSystemError(conn, errno,
_("cannot enable %s"), field);