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sd-dhcp-client: anonymize DHCPDISCOVER (fixes #13992)

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According to RFC7844 section 3 the DHCPDISCOVER message should not contain option 50 («Requested IP Address») when Anonymize is true
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Serge 2019-11-16 15:22:35 +03:00 committed by Yu Watanabe
parent a0fa3ef7ff
commit bf9012bbf6
1 changed files with 3 additions and 1 deletions
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4
src/libsystemd-network/sd-dhcp-client.c
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@ -875,7 +875,9 @@ static int client_send_discover(sd_dhcp_client *client) {
address be assigned, and may include the ’IP address lease time’
option to suggest the lease time it would like.
*/
if (client->last_addr != INADDR_ANY) {
/* RFC7844 section 3:
SHOULD NOT contain any other option. */
if (!client->anonymize && client->last_addr != INADDR_ANY) {
r = dhcp_option_append(&discover->dhcp, optlen, &optoffset, 0,
SD_DHCP_OPTION_REQUESTED_IP_ADDRESS,
4, &client->last_addr);