diff options
Diffstat (limited to 'src/core/cachedhcp.c')
| -rw-r--r-- | src/core/cachedhcp.c | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/src/core/cachedhcp.c b/src/core/cachedhcp.c index c4ca46e..ef21466 100644 --- a/src/core/cachedhcp.c +++ b/src/core/cachedhcp.c @@ -29,6 +29,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); #include <ipxe/dhcppkt.h> #include <ipxe/init.h> #include <ipxe/netdevice.h> +#include <ipxe/vlan.h> #include <ipxe/cachedhcp.h> /** @file @@ -43,6 +44,8 @@ struct cached_dhcp_packet { const char *name; /** DHCP packet (if any) */ struct dhcp_packet *dhcppkt; + /** VLAN tag (if applicable) */ + unsigned int vlan; }; /** Cached DHCPACK */ @@ -136,15 +139,26 @@ static int cachedhcp_apply ( struct cached_dhcp_packet *cache, * matches this network device. */ if ( memcmp ( ll_addr, chaddr, ll_addr_len ) != 0 ) { - DBGC ( colour, "CACHEDHCP %s does not match %s\n", - cache->name, netdev->name ); + DBGC ( colour, "CACHEDHCP %s %s does not match %s\n", + cache->name, ll_protocol->ntoa ( chaddr ), + netdev->name ); + return 0; + } + + /* Do nothing unless cached packet's VLAN tag matches + * this network device. + */ + if ( vlan_tag ( netdev ) != cache->vlan ) { + DBGC ( colour, "CACHEDHCP %s VLAN %d does not match " + "%s\n", cache->name, cache->vlan, + netdev->name ); return 0; } - DBGC ( colour, "CACHEDHCP %s is for %s\n", - cache->name, netdev->name ); /* Use network device's settings block */ settings = netdev_settings ( netdev ); + DBGC ( colour, "CACHEDHCP %s is for %s\n", + cache->name, netdev->name ); } /* Register settings */ @@ -165,12 +179,13 @@ static int cachedhcp_apply ( struct cached_dhcp_packet *cache, * Record cached DHCP packet * * @v cache Cached DHCP packet + * @v vlan VLAN tag, if any * @v data DHCPACK packet buffer * @v max_len Maximum possible length * @ret rc Return status code */ -int cachedhcp_record ( struct cached_dhcp_packet *cache, userptr_t data, - size_t max_len ) { +int cachedhcp_record ( struct cached_dhcp_packet *cache, unsigned int vlan, + userptr_t data, size_t max_len ) { struct dhcp_packet *dhcppkt; struct dhcp_packet *tmp; struct dhcphdr *dhcphdr; @@ -225,6 +240,7 @@ int cachedhcp_record ( struct cached_dhcp_packet *cache, userptr_t data, DBGC ( colour, "CACHEDHCP %s at %#08lx+%#zx/%#zx\n", cache->name, user_to_phys ( data, 0 ), len, max_len ); cache->dhcppkt = dhcppkt; + cache->vlan = vlan; return 0; } |