From 68841b76a6f58c46f72fb13fa8c476578863759f Mon Sep 17 00:00:00 2001 From: Lubomir Rintel Date: Thu, 7 Nov 2019 13:26:38 +0100 Subject: [PATCH] systemd: add siaddr to lease options This is so that we end up with a next-server option analogous to what dhclient helper sends us. Dracut uses this for networked boots. https://gitlab.freedesktop.org/NetworkManager/NetworkManager/merge_requests/329 (cherry picked from commit e475ac75673a6e7fe70574932e0800e1ac54b15d) --- src/dhcp/nm-dhcp-options.c | 1 + src/dhcp/nm-dhcp-options.h | 1 + src/dhcp/nm-dhcp-systemd.c | 9 +++++++++ 3 files changed, 11 insertions(+) diff --git a/src/dhcp/nm-dhcp-options.c b/src/dhcp/nm-dhcp-options.c index 21963070af..22e7d90e92 100644 --- a/src/dhcp/nm-dhcp-options.c +++ b/src/dhcp/nm-dhcp-options.c @@ -180,6 +180,7 @@ const NMDhcpOption _nm_dhcp_option_dhcp4_options[] = { /* Internal values */ REQ (NM_DHCP_OPTION_DHCP4_NM_IP_ADDRESS, "ip_address", FALSE ), REQ (NM_DHCP_OPTION_DHCP4_NM_EXPIRY, "expiry", FALSE ), + REQ (NM_DHCP_OPTION_DHCP4_NM_NEXT_SERVER, "next_server", FALSE ), { 0 } }; diff --git a/src/dhcp/nm-dhcp-options.h b/src/dhcp/nm-dhcp-options.h index 0dc7a27682..f56edb1976 100644 --- a/src/dhcp/nm-dhcp-options.h +++ b/src/dhcp/nm-dhcp-options.h @@ -164,6 +164,7 @@ typedef enum { /* Internal values */ NM_DHCP_OPTION_DHCP4_NM_IP_ADDRESS = 1024, NM_DHCP_OPTION_DHCP4_NM_EXPIRY = 1025, + NM_DHCP_OPTION_DHCP4_NM_NEXT_SERVER = 1026, } NMDhcpOptionDhcp4Options; typedef enum { diff --git a/src/dhcp/nm-dhcp-systemd.c b/src/dhcp/nm-dhcp-systemd.c index 073a6da051..964093458d 100644 --- a/src/dhcp/nm-dhcp-systemd.c +++ b/src/dhcp/nm-dhcp-systemd.c @@ -119,6 +119,7 @@ lease_to_ip4_config (NMDedupMultiIndex *multi_idx, gint64 ts_time = time (NULL); struct in_addr a_address; struct in_addr a_netmask; + struct in_addr a_next_server; struct in_addr server_id; struct in_addr broadcast; const struct in_addr *a_router; @@ -178,6 +179,14 @@ lease_to_ip4_config (NMDedupMultiIndex *multi_idx, NM_DHCP_OPTION_DHCP4_NM_EXPIRY, (guint64) (ts_time + a_lifetime)); + if (sd_dhcp_lease_get_next_server (lease, &a_next_server) == 0) { + nm_utils_inet4_ntop (a_next_server.s_addr, addr_str); + nm_dhcp_option_add_option (options, + _nm_dhcp_option_dhcp4_options, + NM_DHCP_OPTION_DHCP4_NM_NEXT_SERVER, + addr_str); + } + nm_ip4_config_add_address (ip4_config, &((const NMPlatformIP4Address) { .address = a_address.s_addr,