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Message-ID: <20130819062852.GQ26773@secunet.com>
Date: Mon, 19 Aug 2013 08:28:52 +0200
From: Steffen Klassert <steffen.klassert@...unet.com>
To: netdev@...r.kernel.org
Subject: [PATCH RFC 1/2] iproute2: Add support for IPv6 VTI tunnels to
ip6tunnel
Signed-off-by: Steffen Klassert <steffen.klassert@...unet.com>
---
ip/ip6tunnel.c | 57 ++++++++++++++++++++++++++++++++++----------------------
1 file changed, 35 insertions(+), 22 deletions(-)
diff --git a/ip/ip6tunnel.c b/ip/ip6tunnel.c
index 216e982..1988ba7 100644
--- a/ip/ip6tunnel.c
+++ b/ip/ip6tunnel.c
@@ -48,7 +48,7 @@ static void usage(void) __attribute__((noreturn));
static void usage(void)
{
fprintf(stderr, "Usage: ip -f inet6 tunnel { add | change | del | show } [ NAME ]\n");
- fprintf(stderr, " [ mode { ip6ip6 | ipip6 | any } ]\n");
+ fprintf(stderr, " [ mode { ip6ip6 | ipip6 | vti6 | any } ]\n");
fprintf(stderr, " [ remote ADDR local ADDR ] [ dev PHYS_DEV ]\n");
fprintf(stderr, " [ encaplimit ELIM ]\n");
fprintf(stderr ," [ hoplimit TTL ] [ tclass TCLASS ] [ flowlabel FLOWLABEL ]\n");
@@ -65,7 +65,7 @@ static void usage(void)
exit(-1);
}
-static void print_tunnel(struct ip6_tnl_parm *p)
+static void print_tunnel(struct ip6_tnl_parm2 *p)
{
char remote[64];
char local[64];
@@ -106,7 +106,7 @@ static void print_tunnel(struct ip6_tnl_parm *p)
printf(" dscp inherit");
}
-static int parse_args(int argc, char **argv, int cmd, struct ip6_tnl_parm *p)
+static int parse_args(int argc, char **argv, int cmd, struct ip6_tnl_parm2 *p)
{
int count = 0;
char medium[IFNAMSIZ];
@@ -119,7 +119,10 @@ static int parse_args(int argc, char **argv, int cmd, struct ip6_tnl_parm *p)
if (strcmp(*argv, "ipv6/ipv6") == 0 ||
strcmp(*argv, "ip6ip6") == 0)
p->proto = IPPROTO_IPV6;
- else if (strcmp(*argv, "ip/ipv6") == 0 ||
+ else if (strcmp(*argv, "vti6") == 0) {
+ p->proto = IPPROTO_IPV6;
+ p->i_flags |= VTI_ISVTI;
+ } else if (strcmp(*argv, "ip/ipv6") == 0 ||
strcmp(*argv, "ipv4/ipv6") == 0 ||
strcmp(*argv, "ipip6") == 0 ||
strcmp(*argv, "ip4ip6") == 0)
@@ -212,7 +215,7 @@ static int parse_args(int argc, char **argv, int cmd, struct ip6_tnl_parm *p)
duparg2("name", *argv);
strncpy(p->name, *argv, IFNAMSIZ - 1);
if (cmd == SIOCCHGTUNNEL && count == 0) {
- struct ip6_tnl_parm old_p;
+ struct ip6_tnl_parm2 old_p;
memset(&old_p, 0, sizeof(old_p));
if (tnl_get_ioctl(*argv, &old_p))
return -1;
@@ -230,7 +233,7 @@ static int parse_args(int argc, char **argv, int cmd, struct ip6_tnl_parm *p)
return 0;
}
-static void ip6_tnl_parm_init(struct ip6_tnl_parm *p, int apply_default)
+static void ip6_tnl_parm2_init(struct ip6_tnl_parm2 *p, int apply_default)
{
memset(p, 0, sizeof(*p));
p->proto = IPPROTO_IPV6;
@@ -244,8 +247,8 @@ static void ip6_tnl_parm_init(struct ip6_tnl_parm *p, int apply_default)
* @p1: user specified parameter
* @p2: database entry
*/
-static int ip6_tnl_parm_match(const struct ip6_tnl_parm *p1,
- const struct ip6_tnl_parm *p2)
+static int ip6_tnl_parm2_match(const struct ip6_tnl_parm2 *p1,
+ const struct ip6_tnl_parm2 *p2)
{
return ((!p1->link || p1->link == p2->link) &&
(!p1->name[0] || strcmp(p1->name, p2->name) == 0) &&
@@ -263,7 +266,7 @@ static int ip6_tnl_parm_match(const struct ip6_tnl_parm *p1,
(!p1->flags || (p1->flags & p2->flags)));
}
-static int do_tunnels_list(struct ip6_tnl_parm *p)
+static int do_tunnels_list(struct ip6_tnl_parm2 *p)
{
char buf[512];
int err = -1;
@@ -287,7 +290,7 @@ static int do_tunnels_list(struct ip6_tnl_parm *p)
rx_fifo, rx_frame,
tx_bytes, tx_packets, tx_errs, tx_drops,
tx_fifo, tx_colls, tx_carrier, rx_multi;
- struct ip6_tnl_parm p1;
+ struct ip6_tnl_parm2 p1;
char *ptr;
buf[sizeof(buf) - 1] = '\0';
@@ -315,14 +318,14 @@ static int do_tunnels_list(struct ip6_tnl_parm *p)
if (type != ARPHRD_TUNNEL6)
continue;
memset(&p1, 0, sizeof(p1));
- ip6_tnl_parm_init(&p1, 0);
+ ip6_tnl_parm2_init(&p1, 0);
strcpy(p1.name, name);
p1.link = ll_name_to_index(p1.name);
if (p1.link == 0)
continue;
if (tnl_get_ioctl(p1.name, &p1))
continue;
- if (!ip6_tnl_parm_match(p, &p1))
+ if (!ip6_tnl_parm2_match(p, &p1))
continue;
print_tunnel(&p1);
if (show_stats) {
@@ -346,10 +349,10 @@ static int do_tunnels_list(struct ip6_tnl_parm *p)
static int do_show(int argc, char **argv)
{
- struct ip6_tnl_parm p;
+ struct ip6_tnl_parm2 p;
ll_init_map(&rth);
- ip6_tnl_parm_init(&p, 0);
+ ip6_tnl_parm2_init(&p, 0);
p.proto = 0; /* default to any */
if (parse_args(argc, argv, SIOCGETTUNNEL, &p) < 0)
@@ -369,28 +372,38 @@ static int do_show(int argc, char **argv)
static int do_add(int cmd, int argc, char **argv)
{
- struct ip6_tnl_parm p;
+ struct ip6_tnl_parm2 p;
- ip6_tnl_parm_init(&p, 1);
+ ip6_tnl_parm2_init(&p, 1);
if (parse_args(argc, argv, cmd, &p) < 0)
return -1;
- return tnl_add_ioctl(cmd,
- cmd == SIOCCHGTUNNEL && p.name[0] ?
- p.name : "ip6tnl0", p.name, &p);
+ if (p.i_flags != VTI_ISVTI)
+ return tnl_add_ioctl(cmd,
+ cmd == SIOCCHGTUNNEL && p.name[0] ?
+ p.name : "ip6tnl0", p.name, &p);
+ else
+ return tnl_add_ioctl(cmd,
+ cmd == SIOCCHGTUNNEL && p.name[0] ?
+ p.name : "ip6_vti0", p.name, &p);
}
static int do_del(int argc, char **argv)
{
- struct ip6_tnl_parm p;
+ struct ip6_tnl_parm2 p;
- ip6_tnl_parm_init(&p, 1);
+ ip6_tnl_parm2_init(&p, 1);
if (parse_args(argc, argv, SIOCDELTUNNEL, &p) < 0)
return -1;
- return tnl_del_ioctl(p.name[0] ? p.name : "ip6tnl0", p.name, &p);
+ if (p.i_flags != VTI_ISVTI)
+ return tnl_del_ioctl(p.name[0] ? p.name : "ip6tnl0",
+ p.name, &p);
+ else
+ return tnl_del_ioctl(p.name[0] ? p.name : "ip6_vti0",
+ p.name, &p);
}
int do_ip6tunnel(int argc, char **argv)
--
1.7.9.5
--
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