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Add Virtual LAN support.

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This patch adds support for virtual LAN (VLAN) tagging. VLAN tagging allows
multiple VLANs in a bridged network to share the same physical network link
but maintain isolation:

http://en.wikipedia.org/wiki/IEEE_802.1Q

* grub-core/net/ethernet.c: Add check, get, and set vlan tag id.
* grub-core/net/drivers/ieee1275/ofnet.c: Get vlan tag id from bootargs.
* grub-core/net/arp.c: Add check.
* grub-core/net/ip.c: Likewise.
* include/grub/net/arp.h: Add vlantag attribute.
* include/grub/net/ip.h: Likewise.
This commit is contained in:
Paulo Flabiano Smorigo 2013-12-23 12:32:02 -02:00 • committed by Vincent Batts
parent 99ab28563b
commit 5696d56d33
7 changed files with 92 additions and 20 deletions
Download patch file Download diff file Expand all files Collapse all files

3
include/grub/net.h
View file

@ -292,6 +292,7 @@ struct grub_net_network_level_interface
grub_net_interface_flags_t flags;
struct grub_net_bootp_packet *dhcp_ack;
grub_size_t dhcp_acklen;
grub_uint16_t vlantag;
void *data;
};
@ -562,4 +563,6 @@ extern char *grub_net_default_server;
#define GRUB_NET_INTERVAL 400
#define GRUB_NET_INTERVAL_ADDITION 20
#define VLANTAG_IDENTIFIER 0x8100
#endif /* ! GRUB_NET_HEADER */

5
include/grub/net/arp.h
View file

@ -22,10 +22,11 @@
#include <grub/net.h>
extern grub_err_t grub_net_arp_receive (struct grub_net_buff *nb,
struct grub_net_card *card);
struct grub_net_card *card,
grub_uint16_t *vlantag);
grub_err_t
grub_net_arp_send_request (struct grub_net_network_level_interface *inf,
const grub_net_network_level_address_t *proto_addr);
const grub_net_network_level_address_t *proto_addr);
#endif

3
include/grub/net/ip.h
View file

@ -48,7 +48,8 @@ grub_err_t
grub_net_recv_ip_packets (struct grub_net_buff *nb,
struct grub_net_card *card,
const grub_net_link_level_address_t *hwaddress,
const grub_net_link_level_address_t *src_hwaddress);
const grub_net_link_level_address_t *src_hwaddress,
grub_uint16_t *vlantag);
grub_err_t
grub_net_send_ip_packet (struct grub_net_network_level_interface *inf,