diff options
| -rw-r--r-- | src/net/udp/dhcp.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/net/udp/dhcp.c b/src/net/udp/dhcp.c index 9c1e09da..851b75e1 100644 --- a/src/net/udp/dhcp.c +++ b/src/net/udp/dhcp.c @@ -335,6 +335,8 @@ static void dhcp_discovery_rx ( struct dhcp_session *dhcp, char vci[9]; /* "PXEClient" */ int vci_len; int has_pxeclient; + int pxeopts_len; + int has_pxeopts; int8_t priority = 0; uint8_t no_pxedhcp = 0; unsigned long elapsed; @@ -355,8 +357,10 @@ static void dhcp_discovery_rx ( struct dhcp_session *dhcp, vci, sizeof ( vci ) ); has_pxeclient = ( ( vci_len >= ( int ) sizeof ( vci ) ) && ( strncmp ( "PXEClient", vci, sizeof (vci) ) == 0 )); + pxeopts_len = dhcppkt_fetch ( dhcppkt, DHCP_VENDOR_ENCAP, NULL, 0 ); + has_pxeopts = ( pxeopts_len >= 0 ); if ( has_pxeclient ) - DBGC ( dhcp, " pxe" ); + DBGC ( dhcp, "%s", ( has_pxeopts ? " pxe" : " proxy" ) ); /* Identify priority */ dhcppkt_fetch ( dhcppkt, DHCP_EB_PRIORITY, &priority, @@ -382,7 +386,7 @@ static void dhcp_discovery_rx ( struct dhcp_session *dhcp, } /* Select as ProxyDHCP offer, if applicable */ - if ( has_pxeclient && ( msgtype == DHCPOFFER ) && + if ( has_pxeclient && ( ! has_pxeopts ) && ( msgtype == DHCPOFFER ) && ( priority >= dhcp->proxy_priority ) ) { dhcp->proxy_server = server_id; dhcp->proxy_priority = priority; |