grub2/0333-net-net-Add-vlan-information-to-net_ls_addr-output.patch
2023-08-10 12:18:05 +02:00

81 lines
2.5 KiB
Diff

From 2fd539ed1c41b7a771a78fb2a7ef8c89b4231b4b Mon Sep 17 00:00:00 2001
From: Chad Kimes <chkimes@github.com>
Date: Mon, 21 Mar 2022 17:29:15 -0400
Subject: [PATCH 333/336] net/net: Add vlan information to net_ls_addr output
Example output:
grub> net_ls_addr
efinet1 00:11:22:33:44:55 192.0.2.100 vlan100
Signed-off-by: Chad Kimes <chkimes@github.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
---
grub-core/net/net.c | 19 ++++++++++++++++++-
include/grub/net.h | 6 ++++++
2 files changed, 24 insertions(+), 1 deletion(-)
diff --git a/grub-core/net/net.c b/grub-core/net/net.c
index 1001c611d..f37f34cb8 100644
--- a/grub-core/net/net.c
+++ b/grub-core/net/net.c
@@ -795,6 +795,20 @@ grub_net_hwaddr_to_str (const grub_net_link_level_address_t *addr, char *str)
}
}
+void
+grub_net_vlan_to_str (grub_uint16_t vlantag, char *str)
+{
+ str[0] = 0;
+
+ /* 12 bits are used to identify the vlan in 802.1Q. */
+ vlantag = vlantag & 0x0fff;
+
+ if (vlantag == 0)
+ return;
+
+ grub_snprintf (str, GRUB_NET_MAX_STR_VLAN_LEN, "vlan%u", vlantag);
+}
+
int
grub_net_hwaddr_cmp (const grub_net_link_level_address_t *a,
const grub_net_link_level_address_t *b)
@@ -1340,9 +1354,12 @@ grub_cmd_listaddrs (struct grub_command *cmd __attribute__ ((unused)),
{
char bufh[GRUB_NET_MAX_STR_HWADDR_LEN];
char bufn[GRUB_NET_MAX_STR_ADDR_LEN];
+ char bufv[GRUB_NET_MAX_STR_VLAN_LEN];
+
grub_net_hwaddr_to_str (&inf->hwaddress, bufh);
grub_net_addr_to_str (&inf->address, bufn);
- grub_printf ("%s %s %s\n", inf->name, bufh, bufn);
+ grub_net_vlan_to_str (inf->vlantag, bufv);
+ grub_printf ("%s %s %s %s\n", inf->name, bufh, bufn, bufv);
}
return GRUB_ERR_NONE;
}
diff --git a/include/grub/net.h b/include/grub/net.h
index 9e4898cc6..d771afa47 100644
--- a/include/grub/net.h
+++ b/include/grub/net.h
@@ -599,12 +599,18 @@ grub_net_addr_cmp (const grub_net_network_level_address_t *a,
"XX:XX:XX:XX:XX:XX:XX:XX:"\
"XX:XX:XX:XX:XX:XX:XX:XX"))
+/* Max VLAN id = 4094 */
+#define GRUB_NET_MAX_STR_VLAN_LEN (sizeof ("vlanXXXX"))
+
void
grub_net_addr_to_str (const grub_net_network_level_address_t *target,
char *buf);
void
grub_net_hwaddr_to_str (const grub_net_link_level_address_t *addr, char *str);
+void
+grub_net_vlan_to_str (grub_uint16_t vlantag, char *str);
+
grub_err_t
grub_env_set_net_property (const char *intername, const char *suffix,
const char *value, grub_size_t len);
--
2.41.0