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Date: Wed, 13 Jun 2007 19:02:35 +0200 (MEST)
From: Patrick McHardy <kaber@...sh.net>
To: shemminger@...l.org
Cc: netdev@...r.kernel.org, Patrick McHardy <kaber@...sh.net>
Subject: [IPROUTE 02/02]: VLAN support
[IPROUTE]: VLAN support
---
commit 90727b2bf5b4a7ef9d0638ca80206083b965a0b5
tree 173722acd855b7fe1eb1a5f22cf7706814f72c8f
parent 4feb48d12295eb41850c39996f3a8c1dd7909ed5
author Patrick McHardy <kaber@...sh.net> Wed, 13 Jun 2007 18:46:21 +0200
committer Patrick McHardy <kaber@...sh.net> Wed, 13 Jun 2007 18:46:21 +0200
include/linux/if_link.h | 34 +++++++++
include/linux/if_vlan.h | 61 ++++++++++++++++
ip/Makefile | 2 +
ip/iplink_vlan.c | 184 +++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 281 insertions(+), 0 deletions(-)
diff --git a/include/linux/if_link.h b/include/linux/if_link.h
index 58a48d7..7e6d15d 100644
--- a/include/linux/if_link.h
+++ b/include/linux/if_link.h
@@ -150,4 +150,38 @@ enum
#define IFLA_INFO_MAX (__IFLA_INFO_MAX - 1)
+/* VLAN section */
+
+enum
+{
+ IFLA_VLAN_UNSPEC,
+ IFLA_VLAN_ID,
+ IFLA_VLAN_FLAGS,
+ IFLA_VLAN_EGRESS_QOS,
+ IFLA_VLAN_INGRESS_QOS,
+ __IFLA_VLAN_MAX,
+};
+
+#define IFLA_VLAN_MAX (__IFLA_VLAN_MAX - 1)
+
+struct ifla_vlan_flags {
+ __u32 flags;
+ __u32 mask;
+};
+
+enum
+{
+ IFLA_VLAN_QOS_UNSPEC,
+ IFLA_VLAN_QOS_MAPPING,
+ __IFLA_VLAN_QOS_MAX
+};
+
+#define IFLA_VLAN_QOS_MAX (__IFLA_VLAN_QOS_MAX - 1)
+
+struct ifla_vlan_qos_mapping
+{
+ __u32 from;
+ __u32 to;
+};
+
#endif /* _LINUX_IF_LINK_H */
diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
new file mode 100644
index 0000000..4014ba9
--- /dev/null
+++ b/include/linux/if_vlan.h
@@ -0,0 +1,61 @@
+/*
+ * VLAN An implementation of 802.1Q VLAN tagging.
+ *
+ * Authors: Ben Greear <greearb@...delatech.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ */
+
+#ifndef _LINUX_IF_VLAN_H_
+#define _LINUX_IF_VLAN_H_
+
+
+/* VLAN IOCTLs are found in sockios.h */
+
+/* Passed in vlan_ioctl_args structure to determine behaviour. */
+enum vlan_ioctl_cmds {
+ ADD_VLAN_CMD,
+ DEL_VLAN_CMD,
+ SET_VLAN_INGRESS_PRIORITY_CMD,
+ SET_VLAN_EGRESS_PRIORITY_CMD,
+ GET_VLAN_INGRESS_PRIORITY_CMD,
+ GET_VLAN_EGRESS_PRIORITY_CMD,
+ SET_VLAN_NAME_TYPE_CMD,
+ SET_VLAN_FLAG_CMD,
+ GET_VLAN_REALDEV_NAME_CMD, /* If this works, you know it's a VLAN device, btw */
+ GET_VLAN_VID_CMD /* Get the VID of this VLAN (specified by name) */
+};
+
+enum vlan_flags {
+ VLAN_FLAG_REORDER_HDR = 0x1,
+};
+
+enum vlan_name_types {
+ VLAN_NAME_TYPE_PLUS_VID, /* Name will look like: vlan0005 */
+ VLAN_NAME_TYPE_RAW_PLUS_VID, /* name will look like: eth1.0005 */
+ VLAN_NAME_TYPE_PLUS_VID_NO_PAD, /* Name will look like: vlan5 */
+ VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD, /* Name will look like: eth0.5 */
+ VLAN_NAME_TYPE_HIGHEST
+};
+
+struct vlan_ioctl_args {
+ int cmd; /* Should be one of the vlan_ioctl_cmds enum above. */
+ char device1[24];
+
+ union {
+ char device2[24];
+ int VID;
+ unsigned int skb_priority;
+ unsigned int name_type;
+ unsigned int bind_type;
+ unsigned int flag; /* Matches vlan_dev_info flags */
+ } u;
+
+ short vlan_qos;
+};
+
+#endif /* !(_LINUX_IF_VLAN_H_) */
diff --git a/ip/Makefile b/ip/Makefile
index 9a5bfe3..b6d8693 100644
--- a/ip/Makefile
+++ b/ip/Makefile
@@ -3,6 +3,8 @@ IPOBJ=ip.o ipaddress.o iproute.o iprule.o \
ipmaddr.o ipmonitor.o ipmroute.o ipprefix.o \
ipxfrm.o xfrm_state.o xfrm_policy.o xfrm_monitor.o
+IPOBJ += iplink_vlan.o
+
RTMONOBJ=rtmon.o
ALLOBJ=$(IPOBJ) $(RTMONOBJ)
diff --git a/ip/iplink_vlan.c b/ip/iplink_vlan.c
new file mode 100644
index 0000000..ef05fbc
--- /dev/null
+++ b/ip/iplink_vlan.c
@@ -0,0 +1,184 @@
+/*
+ * iplink_vlan.c VLAN device support
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * Authors: Patrick McHardy <kaber@...sh.net>
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <linux/if_vlan.h>
+
+#include "rt_names.h"
+#include "utils.h"
+#include "ip_common.h"
+
+static void explain(void)
+{
+ fprintf(stderr,
+ "Usage: ... vlan id VLANID [ FLAG-LIST ]\n"
+ " [ ingress-qos-map QOS-MAP ] [ egress-qos-map QOS-MAP ]\n"
+ "\n"
+ "VLANID := 0-4095\n"
+ "FLAG-LIST := [ FLAG-LIST ] FLAG\n"
+ "FLAG := [ reorder_hdr { on | off } ]\n"
+ "QOS-MAP := [ QOS-MAP ] QOS-MAPPING\n"
+ "QOS-MAPPING := FROM:TO\n"
+ );
+}
+
+static int on_off(char *msg)
+{
+ fprintf(stderr, "Error: argument of \"%s\" must be \"on\" or \"off\"\n", msg);
+ return -1;
+}
+
+static int vlan_parse_qos_map(int *argcp, char ***argvp, struct nlmsghdr *n,
+ int attrtype)
+{
+ int argc = *argcp;
+ char **argv = *argvp;
+ struct ifla_vlan_qos_mapping m;
+ struct rtattr *tail;
+
+ tail = NLMSG_TAIL(n);
+ addattr_l(n, 1024, attrtype, NULL, 0);
+
+ while (argc > 0) {
+ char *colon = strchr(*argv, ':');
+
+ if (!colon)
+ break;
+ *colon = '\0';
+
+ if (get_u32(&m.from, *argv, 0))
+ return 1;
+ if (get_u32(&m.to, colon + 1, 0))
+ return 1;
+ argc--, argv++;
+
+ addattr_l(n, 1024, IFLA_VLAN_QOS_MAPPING, &m, sizeof(m));
+ }
+
+ tail->rta_len = (void *) NLMSG_TAIL(n) - (void *)tail;
+
+ *argcp = argc;
+ *argvp = argv;
+ return 0;
+}
+
+static int vlan_parse_opt(struct link_util *lu, int argc, char **argv,
+ struct nlmsghdr *n)
+{
+ struct ifla_vlan_flags flags = { 0 };
+ __u16 id;
+
+ while (argc > 0) {
+ if (matches(*argv, "id") == 0) {
+ NEXT_ARG();
+ if (get_u16(&id, *argv, 0))
+ invarg("id is invalid", *argv);
+ addattr_l(n, 1024, IFLA_VLAN_ID, &id, 2);
+ } else if (matches(*argv, "reorder_hdr") == 0) {
+ NEXT_ARG();
+ flags.mask |= VLAN_FLAG_REORDER_HDR;
+ if (strcmp(*argv, "on") == 0)
+ flags.flags |= VLAN_FLAG_REORDER_HDR;
+ else if (strcmp(*argv, "off") == 0)
+ flags.flags &= ~VLAN_FLAG_REORDER_HDR;
+ else
+ return on_off("reorder_hdr");
+ } else if (matches(*argv, "ingress-qos-map") == 0) {
+ NEXT_ARG();
+ if (vlan_parse_qos_map(&argc, &argv, n,
+ IFLA_VLAN_INGRESS_QOS))
+ invarg("invalid ingress-qos-map", *argv);
+ continue;
+ } else if (matches(*argv, "egress-qos-map") == 0) {
+ NEXT_ARG();
+ if (vlan_parse_qos_map(&argc, &argv, n,
+ IFLA_VLAN_EGRESS_QOS))
+ invarg("invalid egress-qos-map", *argv);
+ continue;
+ } else if (matches(*argv, "help") == 0) {
+ explain();
+ return -1;
+ } else {
+ fprintf(stderr, "vlan: what is \"%s\"?\n", *argv);
+ explain();
+ return -1;
+ }
+ argc--, argv++;
+ }
+
+ if (flags.mask)
+ addattr_l(n, 1024, IFLA_VLAN_FLAGS, &flags, sizeof(flags));
+
+ return 0;
+}
+
+static void vlan_print_map(FILE *f, char *name, struct rtattr *attr)
+{
+ struct ifla_vlan_qos_mapping *m;
+ struct rtattr *i;
+ int rem;
+
+ fprintf(f, "\n %s { ", name);
+
+ rem = RTA_PAYLOAD(attr);
+ for (i = RTA_DATA(attr); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
+ m = RTA_DATA(i);
+ fprintf(f, "%u:%u ", m->from, m->to);
+ }
+ fprintf(f, "} ");
+}
+
+static void vlan_print_flags(FILE *fp, __u32 flags)
+{
+ fprintf(fp, "<");
+#define _PF(f) if (flags & VLAN_FLAG_##f) { \
+ flags &= ~ VLAN_FLAG_##f; \
+ fprintf(fp, #f "%s", flags ? "," : ""); \
+ }
+ _PF(REORDER_HDR);
+#undef _PF
+ if (flags)
+ fprintf(fp, "%x", flags);
+ fprintf(fp, "> ");
+}
+
+static void vlan_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
+{
+ struct ifla_vlan_flags *flags;
+ if (!tb)
+ return;
+
+ if (!tb[IFLA_VLAN_ID] ||
+ RTA_PAYLOAD(tb[IFLA_VLAN_ID]) < sizeof(__u16))
+ return;
+
+ fprintf(f, "id %u ", *(__u16 *)RTA_DATA(tb[IFLA_VLAN_ID]));
+
+ if (tb[IFLA_VLAN_FLAGS]) {
+ if (RTA_PAYLOAD(tb[IFLA_VLAN_FLAGS]) < sizeof(*flags))
+ return;
+ flags = RTA_DATA(tb[IFLA_VLAN_FLAGS]);
+ vlan_print_flags(f, flags->flags);
+ }
+ if (tb[IFLA_VLAN_INGRESS_QOS])
+ vlan_print_map(f, "ingress-qos-map", tb[IFLA_VLAN_INGRESS_QOS]);
+ if (tb[IFLA_VLAN_EGRESS_QOS])
+ vlan_print_map(f, "egress-qos-map", tb[IFLA_VLAN_EGRESS_QOS]);
+}
+
+struct link_util vlan_link_util = {
+ .id = "vlan",
+ .maxattr = IFLA_VLAN_MAX,
+ .parse_opt = vlan_parse_opt,
+ .print_opt = vlan_print_opt,
+};
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