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resolve: Support .add_domain_name for resolvconf

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Add ability to populate search domains for resolvconf based systems.
Search domains are added using the 'search' directive and added using
the <ifname>.domain key into resolvconf.
This commit is contained in:
Denis Kenzior 2020-08-21 15:41:55 -05:00
parent 65fdc8f2fe
commit 8840d4623d
1 changed files with 22 additions and 0 deletions
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22
src/resolve.c
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@ -385,6 +385,7 @@ static bool resolvconf_invoke(const char *ifname, const char *type,
struct resolvconf {
struct resolve super;
bool have_domain : 1;
bool have_dns : 1;
char *ifname;
};
@ -411,6 +412,22 @@ static void resolve_resolvconf_add_dns(struct resolve *resolve,
rc->have_dns = true;
}
static void resolve_resolvconf_add_domain_name(struct resolve *resolve,
const char *domain_name)
{
struct resolvconf *rc =
l_container_of(resolve, struct resolvconf, super);
L_AUTO_FREE_VAR(char *, domain_str) = NULL;
if (L_WARN_ON(!resolvconf_path))
return;
domain_str = l_strdup_printf("search %s\n", domain_name);
if (resolvconf_invoke(rc->ifname, "domain", domain_str))
rc->have_domain = true;
}
static void resolve_resolvconf_revert(struct resolve *resolve)
{
struct resolvconf *rc =
@ -419,7 +436,11 @@ static void resolve_resolvconf_revert(struct resolve *resolve)
if (rc->have_dns)
resolvconf_invoke(rc->ifname, "dns", NULL);
if (rc->have_domain)
resolvconf_invoke(rc->ifname, "domain", NULL);
rc->have_dns = false;
rc->have_domain = false;
}
static void resolve_resolvconf_destroy(struct resolve *resolve)
@ -433,6 +454,7 @@ static void resolve_resolvconf_destroy(struct resolve *resolve)
static struct resolve_ops resolvconf_ops = {
.add_dns = resolve_resolvconf_add_dns,
.add_domain_name = resolve_resolvconf_add_domain_name,
.revert = resolve_resolvconf_revert,
.destroy = resolve_resolvconf_destroy,
};