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sd-dhcpv6: Add support to set request MUD URL

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This commit is contained in:
Susant Sahani 2020-03-30 16:30:46 +02:00
parent 31c68e0277
commit de8d6e5563
2 changed files with 50 additions and 0 deletions
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46
src/libsystemd-network/sd-dhcp6-client.c
View File

@ -25,6 +25,7 @@
#include "socket-util.h"
#include "string-table.h"
#include "util.h"
#include "web-util.h"
#define MAX_MAC_ADDR_LEN INFINIBAND_ALEN
@ -65,6 +66,7 @@ struct sd_dhcp6_client {
size_t req_opts_allocated;
size_t req_opts_len;
char *fqdn;
char *mudurl;
sd_event_source *receive_message;
usec_t retransmit_time;
uint8_t retransmit_count;
@ -363,6 +365,17 @@ int sd_dhcp6_client_set_request_option(sd_dhcp6_client *client, uint16_t option)
return 0;
}
int sd_dhcp6_client_set_request_mud_url(sd_dhcp6_client *client, char *mudurl) {
assert_return(client, -EINVAL);
assert_return(client->state == DHCP6_STATE_STOPPED, -EBUSY);
assert_return(mudurl, -EINVAL);
assert_return(strlen(mudurl) <= 255, -EINVAL);
assert_return(http_url_is_valid(mudurl), -EINVAL);
return free_and_strdup(&client->mudurl, mudurl);
}
int sd_dhcp6_client_get_prefix_delegation(sd_dhcp6_client *client, int *delegation) {
assert_return(client, -EINVAL);
assert_return(delegation, -EINVAL);
@ -484,6 +497,14 @@ static int client_send_message(sd_dhcp6_client *client, usec_t time_now) {
case DHCP6_STATE_INFORMATION_REQUEST:
message->type = DHCP6_INFORMATION_REQUEST;
if (client->mudurl) {
r = dhcp6_option_append(&opt, &optlen,
SD_DHCP6_OPTION_MUD_URL, strlen(client->mudurl),
client->mudurl);
if (r < 0)
return r;
}
break;
case DHCP6_STATE_SOLICITATION:
@ -507,6 +528,14 @@ static int client_send_message(sd_dhcp6_client *client, usec_t time_now) {
return r;
}
if (client->mudurl) {
r = dhcp6_option_append(&opt, &optlen,
SD_DHCP6_OPTION_MUD_URL, strlen(client->mudurl),
client->mudurl);
if (r < 0)
return r;
}
if (FLAGS_SET(client->request, DHCP6_REQUEST_IA_PD)) {
r = dhcp6_option_append_pd(opt, optlen, &client->ia_pd, &client->hint_pd_prefix);
if (r < 0)
@ -545,6 +574,14 @@ static int client_send_message(sd_dhcp6_client *client, usec_t time_now) {
return r;
}
if (client->mudurl) {
r = dhcp6_option_append(&opt, &optlen,
SD_DHCP6_OPTION_MUD_URL, strlen(client->mudurl),
client->mudurl);
if (r < 0)
return r;
}
if (FLAGS_SET(client->request, DHCP6_REQUEST_IA_PD)) {
r = dhcp6_option_append_pd(opt, optlen, &client->lease->pd, NULL);
if (r < 0)
@ -571,6 +608,14 @@ static int client_send_message(sd_dhcp6_client *client, usec_t time_now) {
return r;
}
if (client->mudurl) {
r = dhcp6_option_append(&opt, &optlen,
SD_DHCP6_OPTION_MUD_URL, strlen(client->mudurl),
client->mudurl);
if (r < 0)
return r;
}
if (FLAGS_SET(client->request, DHCP6_REQUEST_IA_PD)) {
r = dhcp6_option_append_pd(opt, optlen, &client->lease->pd, NULL);
if (r < 0)
@ -1521,6 +1566,7 @@ static sd_dhcp6_client *dhcp6_client_free(sd_dhcp6_client *client) {
free(client->req_opts);
free(client->fqdn);
free(client->mudurl);
return mfree(client);
}

4
src/systemd/sd-dhcp6-client.h
View File

@ -73,6 +73,7 @@ enum {
SD_DHCP6_OPTION_FQDN = 39, /* RFC 4704 */
SD_DHCP6_OPTION_NTP_SERVER = 56, /* RFC 5908 */
SD_DHCP6_OPTION_MUD_URL = 112, /* RFC 8250 */
/* option codes 89-142 are unassigned */
/* option codes 144-65535 are unassigned */
@ -120,6 +121,9 @@ int sd_dhcp6_client_get_information_request(
int sd_dhcp6_client_set_request_option(
sd_dhcp6_client *client,
uint16_t option);
int sd_dhcp6_client_set_request_mud_url(
sd_dhcp6_client *client,
char *mudurl);
int sd_dhcp6_client_set_prefix_delegation_hint(
sd_dhcp6_client *client,
uint8_t prefixlen,