/*
* Parse IPv6 route from strings to NMIP6Route stucture.
* ip_str is the IPv6 route in the form address/prefix
* next_hop_str is the next hop
* metric_str is the route metric
*/
NMIP6Route *
nmc_parse_and_build_ip6_route (const char *ip_str, const char *next_hop_str, const char *metric_str, GError **error)
{
NMIP6Route *route = NULL;
struct in6_addr ip_addr, next_hop_addr;
char *tmp;
char *plen;
long int prefix, metric;
g_return_val_if_fail (ip_str != NULL, NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
tmp = g_strdup (ip_str);
plen = strchr (tmp, '/'); /* prefix delimiter */
if (plen)
*plen++ = '\0';
if (inet_pton (AF_INET6, tmp, &ip_addr) < 1) {
g_set_error (error, NMCLI_ERROR, NMC_RESULT_ERROR_USER_INPUT,
_("invalid IPv6 route '%s'"), tmp);
goto finish;
}
prefix = 128;
if (plen) {
if (!nmc_string_to_int (plen, TRUE, 0, 128, &prefix)) {
g_set_error (error, NMCLI_ERROR, NMC_RESULT_ERROR_USER_INPUT,
_("invalid prefix '%s'; <0-128> allowed"), plen);
goto finish;
}
}
if (inet_pton (AF_INET6, next_hop_str, &next_hop_addr) < 1) {
g_set_error (error, NMCLI_ERROR, NMC_RESULT_ERROR_USER_INPUT,
_("invalid next hop address '%s'"), next_hop_str);
goto finish;
}
metric = 0;
if (metric_str) {
if (!nmc_string_to_int (metric_str, TRUE, 0, G_MAXUINT32, &metric)) {
g_set_error (error, NMCLI_ERROR, NMC_RESULT_ERROR_USER_INPUT,
_("invalid metric '%s'"), metric_str);
goto finish;
}
}
route = nm_ip6_route_new ();
nm_ip6_route_set_dest (route, &ip_addr);
nm_ip6_route_set_prefix (route, (guint32) prefix);
nm_ip6_route_set_next_hop (route, &next_hop_addr);
nm_ip6_route_set_metric (route, (guint32) metric);
finish:
g_free (tmp);
return route;
}
/*
* Parse IPv6 address from string to NMIP6Address stucture.
* ip_str is the IPv6 address in the form address/prefix
* gw_str is the gateway address (it is optional)
*/
NMIP6Address *
nmc_parse_and_build_ip6_address (const char *ip_str, const char *gw_str, GError **error)
{
NMIP6Address *addr = NULL;
struct in6_addr ip_addr, gw_addr;
char *tmp;
char *plen;
long int prefix;
g_return_val_if_fail (ip_str != NULL, NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
tmp = g_strdup (ip_str);
plen = strchr (tmp, '/'); /* prefix delimiter */
if (plen)
*plen++ = '\0';
if (inet_pton (AF_INET6, tmp, &ip_addr) < 1) {
g_set_error (error, NMCLI_ERROR, NMC_RESULT_ERROR_USER_INPUT,
_("invalid IPv6 address '%s'"), tmp);
goto finish;
}
prefix = 128;
if (plen) {
if (!nmc_string_to_int (plen, TRUE, 1, 128, &prefix)) {
g_set_error (error, NMCLI_ERROR, NMC_RESULT_ERROR_USER_INPUT,
_("invalid prefix '%s'; <1-128> allowed"), plen);
goto finish;
}
}
if (inet_pton (AF_INET6, gw_str ? gw_str : "::", &gw_addr) < 1) {
g_set_error (error, NMCLI_ERROR, NMC_RESULT_ERROR_USER_INPUT,
_("invalid gateway '%s'"), gw_str);
goto finish;
}
addr = nm_ip6_address_new ();
nm_ip6_address_set_address (addr, &ip_addr);
nm_ip6_address_set_prefix (addr, (guint32) prefix);
nm_ip6_address_set_gateway (addr, &gw_addr);
finish:
g_free (tmp);
return addr;
}
/*
* Parse IP address from string to NMIPAddress stucture.
* ip_str is the IP address in the form address/prefix
*/
NMIPAddress *
nmc_parse_and_build_address (int family, const char *ip_str, GError **error)
{
int max_prefix = (family == AF_INET) ? 32 : 128;
NMIPAddress *addr = NULL;
const char *ip;
char *tmp;
char *plen;
long int prefix;
GError *local = NULL;
g_return_val_if_fail (ip_str != NULL, NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
tmp = g_strdup (ip_str);
plen = strchr (tmp, '/'); /* prefix delimiter */
if (plen)
*plen++ = '\0';
ip = tmp;
prefix = max_prefix;
if (plen) {
if (!nmc_string_to_int (plen, TRUE, 1, max_prefix, &prefix)) {
g_set_error (error, NMCLI_ERROR, NMC_RESULT_ERROR_USER_INPUT,
_("invalid prefix '%s'; <1-%d> allowed"), plen, max_prefix);
goto finish;
}
}
addr = nm_ip_address_new (family, ip, (guint32) prefix, &local);
if (!addr) {
g_set_error (error, NMCLI_ERROR, NMC_RESULT_ERROR_USER_INPUT,
_("invalid IP address: %s"), local->message);
g_clear_error (&local);
}
finish:
g_free (tmp);
return addr;
}
/*
* nmc_parse_and_build_route:
* @family: AF_INET or AF_INET6
* @first: the route destination in the form of "address/prefix"
(/prefix is optional)
* @second: (allow-none): next hop address, if third is not NULL. Otherwise it could be
either next hop address or metric. (It can be NULL when @third is NULL).
* @third: (allow-none): route metric
* @error: location to store GError
*
* Parse route from strings and return an #NMIPRoute
*
* Returns: %TRUE on success, %FALSE on failure
*/
NMIPRoute *
nmc_parse_and_build_route (int family,
const char *first,
const char *second,
const char *third,
GError **error)
{
int max_prefix = (family == AF_INET) ? 32 : 128;
char *dest = NULL, *plen = NULL;
const char *next_hop = NULL;
const char *canon_dest;
long int prefix = max_prefix, metric = -1;
NMIPRoute *route = NULL;
gboolean success = FALSE;
GError *local = NULL;
g_return_val_if_fail (family == AF_INET || family == AF_INET6, FALSE);
g_return_val_if_fail (first != NULL, FALSE);
g_return_val_if_fail (second || !third, FALSE);
g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
dest = g_strdup (first);
plen = strchr (dest, '/'); /* prefix delimiter */
if (plen)
*plen++ = '\0';
if (plen) {
if (!nmc_string_to_int (plen, TRUE, 1, max_prefix, &prefix)) {
g_set_error (error, NMCLI_ERROR, NMC_RESULT_ERROR_USER_INPUT,
_("invalid prefix '%s'; <1-%d> allowed"),
plen, max_prefix);
goto finish;
}
}
if (second) {
if (third || nm_utils_ipaddr_valid (family, second))
next_hop = second;
else {
/* 'second' can be a metric */
if (!nmc_string_to_int (second, TRUE, 0, G_MAXUINT32, &metric)) {
g_set_error (error, 1, 0, _("the second component of route ('%s') is neither "
"a next hop address nor a metric"), second);
goto finish;
}
}
}
if (third) {
if (!nmc_string_to_int (third, TRUE, 0, G_MAXUINT32, &metric)) {
g_set_error (error, 1, 0, _("invalid metric '%s'"), third);
goto finish;
}
}
route = nm_ip_route_new (family, dest, prefix, next_hop, metric, &local);
if (!route) {
g_set_error (error, NMCLI_ERROR, NMC_RESULT_ERROR_USER_INPUT,
_("invalid route: %s"), local->message);
g_clear_error (&local);
goto finish;
}
/* We don't accept default routes as NetworkManager handles it
* itself. But we have to check this after @route has normalized the
* dest string.
*/
canon_dest = nm_ip_route_get_dest (route);
if (!strcmp (canon_dest, "0.0.0.0") || !strcmp (canon_dest, "::")) {
g_set_error_literal (error, NMCLI_ERROR, NMC_RESULT_ERROR_USER_INPUT,
_("default route cannot be added (NetworkManager handles it by itself)"));
g_clear_pointer (&route, nm_ip_route_unref);
goto finish;
}
success = TRUE;
finish:
g_free (dest);
return route;
}
