From: Andrew Zaborowski <andrew.zaborowski@intel.com>
To: ell@lists.linux.dev
Subject: [PATCH] netconfig: Add getters for DNS addresses and domain names
Date: Wed, 22 Jun 2022 02:57:14 +0200 [thread overview]
Message-ID: <20220622005714.2319560-1-andrew.zaborowski@intel.com> (raw)
---
ell/ell.sym | 2 ++
ell/netconfig.c | 73 +++++++++++++++++++++++++++++++++++++++++++++++++
ell/netconfig.h | 2 ++
3 files changed, 77 insertions(+)
diff --git a/ell/ell.sym b/ell/ell.sym
index 38422e7..8f4e59d 100644
--- a/ell/ell.sym
+++ b/ell/ell.sym
@@ -758,6 +758,8 @@ global:
l_netconfig_apply_rtnl;
l_netconfig_get_addresses;
l_netconfig_get_routes;
+ l_netconfig_get_dns_list;
+ l_netconfig_get_domain_names;
local:
*;
};
diff --git a/ell/netconfig.c b/ell/netconfig.c
index b4e9802..d4487bd 100644
--- a/ell/netconfig.c
+++ b/ell/netconfig.c
@@ -1808,3 +1808,76 @@ LIB_EXPORT const struct l_queue_entry *l_netconfig_get_routes(
return l_queue_get_entries(netconfig->routes.current);
}
+
+static void netconfig_strv_cat(char ***dest, char **src, bool free)
+{
+ unsigned int dest_len;
+ unsigned int src_len;
+
+ if (!src)
+ return;
+
+ if (!free)
+ src = l_strv_copy(src);
+
+ if (!*dest) {
+ *dest = src;
+ return;
+ }
+
+ dest_len = l_strv_length(*dest);
+ src_len = l_strv_length(src);
+ *dest = l_realloc(*dest, sizeof(char *) * (dest_len + src_len + 1));
+ memcpy(*dest + dest_len, src, sizeof(char *) * (src_len + 1));
+ l_free(src);
+}
+
+/* Returns a new strv array to be freed by the caller */
+LIB_EXPORT char **l_netconfig_get_dns_list(struct l_netconfig *netconfig)
+{
+ char **ret = NULL;
+ const struct l_dhcp_lease *v4_lease;
+ const struct l_dhcp6_lease *v6_lease;
+
+ if (netconfig->v4_dns_override)
+ netconfig_strv_cat(&ret, netconfig->v4_dns_override, false);
+ else if ((v4_lease =
+ l_dhcp_client_get_lease(netconfig->dhcp_client)))
+ netconfig_strv_cat(&ret, l_dhcp_lease_get_dns(v4_lease), true);
+
+ if (netconfig->v6_dns_override)
+ netconfig_strv_cat(&ret, netconfig->v6_dns_override, false);
+ else if ((v6_lease =
+ l_dhcp6_client_get_lease(netconfig->dhcp6_client)))
+ netconfig_strv_cat(&ret, l_dhcp6_lease_get_dns(v6_lease), true);
+
+ return ret;
+}
+
+/* Returns a new strv array to be freed by the caller */
+LIB_EXPORT char **l_netconfig_get_domain_names(struct l_netconfig *netconfig)
+{
+ char **ret = NULL;
+ const struct l_dhcp_lease *v4_lease;
+ const struct l_dhcp6_lease *v6_lease;
+
+ if (netconfig->v4_domain_names_override)
+ netconfig_strv_cat(&ret, netconfig->v4_domain_names_override,
+ false);
+ else if ((v4_lease =
+ l_dhcp_client_get_lease(netconfig->dhcp_client)) &&
+ l_dhcp_lease_get_domain_name(v4_lease)) {
+ ret = l_new(char *, 2);
+ ret[0] = l_dhcp_lease_get_domain_name(v4_lease);
+ }
+
+ if (netconfig->v6_dns_override)
+ netconfig_strv_cat(&ret, netconfig->v6_domain_names_override,
+ false);
+ else if ((v6_lease =
+ l_dhcp6_client_get_lease(netconfig->dhcp6_client)))
+ netconfig_strv_cat(&ret, l_dhcp6_lease_get_domains(v6_lease),
+ true);
+
+ return ret;
+}
diff --git a/ell/netconfig.h b/ell/netconfig.h
index d845c55..ac467b6 100644
--- a/ell/netconfig.h
+++ b/ell/netconfig.h
@@ -99,6 +99,8 @@ const struct l_queue_entry *l_netconfig_get_routes(
const struct l_queue_entry **out_updated,
const struct l_queue_entry **out_removed,
const struct l_queue_entry **out_expired);
+char **l_netconfig_get_dns_list(struct l_netconfig *netconfig);
+char **l_netconfig_get_domain_names(struct l_netconfig *netconfig);
#ifdef __cplusplus
}
--
2.34.1
next reply other threads:[~2022-06-22 0:57 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-22 0:57 Andrew Zaborowski [this message]
2022-06-22 20:49 ` [PATCH] netconfig: Add getters for DNS addresses and domain names Denis Kenzior
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