mirror of
https://git.proxmox.com/git/mirror_iproute2
synced 2025-08-13 16:46:06 +00:00
iproute2: GRE over IPv6 tunnel support.
GRE over IPv6 tunnel support. Signed-off-by: Dmitry Kozlov <xeb@mail.ru>
This commit is contained in:
xeb@mail.ru
Stephen Hemminger
parent
e26520e5c1
commit
af89576d7a
@ -5,7 +5,7 @@ IPOBJ=ip.o ipaddress.o ipaddrlabel.o iproute.o iprule.o ipnetns.o \
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iplink_vlan.o link_veth.o link_gre.o iplink_can.o \
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iplink_macvlan.o iplink_macvtap.o ipl2tp.o link_vti.o \
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iplink_vxlan.o tcp_metrics.o iplink_ipoib.o ipnetconf.o link_ip6tnl.o \
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link_iptnl.o
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link_iptnl.o link_gre6.o
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RTMONOBJ=rtmon.o
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@ -23,7 +23,6 @@ all: $(TARGETS) $(SCRIPTS)
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ip: $(IPOBJ) $(LIBNETLINK)
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rtmon: $(RTMONOBJ)
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install: all
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131
ip/ip6tunnel.c
131
ip/ip6tunnel.c
@ -48,11 +48,12 @@ static void usage(void) __attribute__((noreturn));
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static void usage(void)
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{
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fprintf(stderr, "Usage: ip -f inet6 tunnel { add | change | del | show } [ NAME ]\n");
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fprintf(stderr, " [ mode { ip6ip6 | ipip6 | any } ]\n");
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fprintf(stderr, " [ mode { ip6ip6 | ipip6 | ip6gre | any } ]\n");
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fprintf(stderr, " [ remote ADDR local ADDR ] [ dev PHYS_DEV ]\n");
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fprintf(stderr, " [ encaplimit ELIM ]\n");
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fprintf(stderr ," [ hoplimit TTL ] [ tclass TCLASS ] [ flowlabel FLOWLABEL ]\n");
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fprintf(stderr, " [ dscp inherit ]\n");
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fprintf(stderr, " [ [i|o]seq ] [ [i|o]key KEY ] [ [i|o]csum ]\n");
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fprintf(stderr, "\n");
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fprintf(stderr, "Where: NAME := STRING\n");
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fprintf(stderr, " ADDR := IPV6_ADDRESS\n");
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@ -62,10 +63,11 @@ static void usage(void)
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DEFAULT_TNL_HOP_LIMIT);
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fprintf(stderr, " TCLASS := { 0x0..0xff | inherit }\n");
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fprintf(stderr, " FLOWLABEL := { 0x0..0xfffff | inherit }\n");
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fprintf(stderr, " KEY := { DOTTED_QUAD | NUMBER }\n");
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exit(-1);
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}
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static void print_tunnel(struct ip6_tnl_parm *p)
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static void print_tunnel(struct ip6_tnl_parm2 *p)
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{
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char remote[64];
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char local[64];
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@ -104,9 +106,29 @@ static void print_tunnel(struct ip6_tnl_parm *p)
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if (p->flags & IP6_TNL_F_RCV_DSCP_COPY)
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printf(" dscp inherit");
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if (p->proto == IPPROTO_GRE) {
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if ((p->i_flags&GRE_KEY) && (p->o_flags&GRE_KEY) && p->o_key == p->i_key)
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printf(" key %u", ntohl(p->i_key));
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else if ((p->i_flags|p->o_flags)&GRE_KEY) {
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if (p->i_flags&GRE_KEY)
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printf(" ikey %u ", ntohl(p->i_key));
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if (p->o_flags&GRE_KEY)
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printf(" okey %u ", ntohl(p->o_key));
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}
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if (p->i_flags&GRE_SEQ)
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printf("%s Drop packets out of sequence.\n", _SL_);
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if (p->i_flags&GRE_CSUM)
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printf("%s Checksum in received packet is required.", _SL_);
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if (p->o_flags&GRE_SEQ)
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printf("%s Sequence packets on output.", _SL_);
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if (p->o_flags&GRE_CSUM)
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printf("%s Checksum output packets.", _SL_);
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}
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}
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static int parse_args(int argc, char **argv, int cmd, struct ip6_tnl_parm *p)
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static int parse_args(int argc, char **argv, int cmd, struct ip6_tnl_parm2 *p)
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{
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int count = 0;
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char medium[IFNAMSIZ];
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@ -124,6 +146,9 @@ static int parse_args(int argc, char **argv, int cmd, struct ip6_tnl_parm *p)
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strcmp(*argv, "ipip6") == 0 ||
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strcmp(*argv, "ip4ip6") == 0)
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p->proto = IPPROTO_IPIP;
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else if (strcmp(*argv, "ip6gre") == 0 ||
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strcmp(*argv, "gre/ipv6") == 0)
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p->proto = IPPROTO_GRE;
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else if (strcmp(*argv, "any/ipv6") == 0 ||
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strcmp(*argv, "any") == 0)
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p->proto = 0;
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@ -202,6 +227,60 @@ static int parse_args(int argc, char **argv, int cmd, struct ip6_tnl_parm *p)
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if (strcmp(*argv, "inherit") != 0)
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invarg("not inherit", *argv);
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p->flags |= IP6_TNL_F_RCV_DSCP_COPY;
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} else if (strcmp(*argv, "key") == 0) {
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unsigned uval;
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NEXT_ARG();
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p->i_flags |= GRE_KEY;
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p->o_flags |= GRE_KEY;
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if (strchr(*argv, '.'))
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p->i_key = p->o_key = get_addr32(*argv);
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else {
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if (get_unsigned(&uval, *argv, 0)<0) {
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fprintf(stderr, "invalid value of \"key\"\n");
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exit(-1);
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}
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p->i_key = p->o_key = htonl(uval);
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}
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} else if (strcmp(*argv, "ikey") == 0) {
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unsigned uval;
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NEXT_ARG();
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p->i_flags |= GRE_KEY;
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if (strchr(*argv, '.'))
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p->i_key = get_addr32(*argv);
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else {
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if (get_unsigned(&uval, *argv, 0)<0) {
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fprintf(stderr, "invalid value of \"ikey\"\n");
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exit(-1);
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}
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p->i_key = htonl(uval);
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}
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} else if (strcmp(*argv, "okey") == 0) {
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unsigned uval;
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NEXT_ARG();
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p->o_flags |= GRE_KEY;
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if (strchr(*argv, '.'))
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p->o_key = get_addr32(*argv);
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else {
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if (get_unsigned(&uval, *argv, 0)<0) {
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fprintf(stderr, "invalid value of \"okey\"\n");
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exit(-1);
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}
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p->o_key = htonl(uval);
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}
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} else if (strcmp(*argv, "seq") == 0) {
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p->i_flags |= GRE_SEQ;
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p->o_flags |= GRE_SEQ;
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} else if (strcmp(*argv, "iseq") == 0) {
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p->i_flags |= GRE_SEQ;
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} else if (strcmp(*argv, "oseq") == 0) {
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p->o_flags |= GRE_SEQ;
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} else if (strcmp(*argv, "csum") == 0) {
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p->i_flags |= GRE_CSUM;
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p->o_flags |= GRE_CSUM;
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} else if (strcmp(*argv, "icsum") == 0) {
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p->i_flags |= GRE_CSUM;
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} else if (strcmp(*argv, "ocsum") == 0) {
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p->o_flags |= GRE_CSUM;
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} else {
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if (strcmp(*argv, "name") == 0) {
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NEXT_ARG();
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@ -212,7 +291,7 @@ static int parse_args(int argc, char **argv, int cmd, struct ip6_tnl_parm *p)
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duparg2("name", *argv);
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strncpy(p->name, *argv, IFNAMSIZ - 1);
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if (cmd == SIOCCHGTUNNEL && count == 0) {
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struct ip6_tnl_parm old_p;
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struct ip6_tnl_parm2 old_p;
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memset(&old_p, 0, sizeof(old_p));
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if (tnl_get_ioctl(*argv, &old_p))
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return -1;
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@ -230,7 +309,7 @@ static int parse_args(int argc, char **argv, int cmd, struct ip6_tnl_parm *p)
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return 0;
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}
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static void ip6_tnl_parm_init(struct ip6_tnl_parm *p, int apply_default)
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static void ip6_tnl_parm_init(struct ip6_tnl_parm2 *p, int apply_default)
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{
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memset(p, 0, sizeof(*p));
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p->proto = IPPROTO_IPV6;
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@ -244,8 +323,8 @@ static void ip6_tnl_parm_init(struct ip6_tnl_parm *p, int apply_default)
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* @p1: user specified parameter
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* @p2: database entry
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*/
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static int ip6_tnl_parm_match(const struct ip6_tnl_parm *p1,
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const struct ip6_tnl_parm *p2)
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static int ip6_tnl_parm_match(const struct ip6_tnl_parm2 *p1,
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const struct ip6_tnl_parm2 *p2)
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{
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return ((!p1->link || p1->link == p2->link) &&
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(!p1->name[0] || strcmp(p1->name, p2->name) == 0) &&
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@ -263,7 +342,7 @@ static int ip6_tnl_parm_match(const struct ip6_tnl_parm *p1,
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(!p1->flags || (p1->flags & p2->flags)));
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}
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static int do_tunnels_list(struct ip6_tnl_parm *p)
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static int do_tunnels_list(struct ip6_tnl_parm2 *p)
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{
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char buf[512];
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int err = -1;
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@ -287,7 +366,7 @@ static int do_tunnels_list(struct ip6_tnl_parm *p)
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rx_fifo, rx_frame,
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tx_bytes, tx_packets, tx_errs, tx_drops,
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tx_fifo, tx_colls, tx_carrier, rx_multi;
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struct ip6_tnl_parm p1;
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struct ip6_tnl_parm2 p1;
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char *ptr;
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buf[sizeof(buf) - 1] = '\0';
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@ -312,10 +391,12 @@ static int do_tunnels_list(struct ip6_tnl_parm *p)
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fprintf(stderr, "Failed to get type of \"%s\"\n", name);
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continue;
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}
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if (type != ARPHRD_TUNNEL6)
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if (type != ARPHRD_TUNNEL6 && type != ARPHRD_IP6GRE)
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continue;
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memset(&p1, 0, sizeof(p1));
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ip6_tnl_parm_init(&p1, 0);
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if (type == ARPHRD_IP6GRE)
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p1.proto = IPPROTO_GRE;
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strcpy(p1.name, name);
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p1.link = ll_name_to_index(p1.name);
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if (p1.link == 0)
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@ -346,7 +427,7 @@ static int do_tunnels_list(struct ip6_tnl_parm *p)
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static int do_show(int argc, char **argv)
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{
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struct ip6_tnl_parm p;
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struct ip6_tnl_parm2 p;
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ll_init_map(&rth);
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ip6_tnl_parm_init(&p, 0);
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@ -369,28 +450,44 @@ static int do_show(int argc, char **argv)
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static int do_add(int cmd, int argc, char **argv)
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{
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struct ip6_tnl_parm p;
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struct ip6_tnl_parm2 p;
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ip6_tnl_parm_init(&p, 1);
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if (parse_args(argc, argv, cmd, &p) < 0)
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return -1;
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return tnl_add_ioctl(cmd,
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cmd == SIOCCHGTUNNEL && p.name[0] ?
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p.name : "ip6tnl0", p.name, &p);
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switch (p.proto) {
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case IPPROTO_IPIP:
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case IPPROTO_IPV6:
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return tnl_add_ioctl(cmd, "ip6tnl0", p.name, &p);
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case IPPROTO_GRE:
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return tnl_add_ioctl(cmd, "ip6gre0", p.name, &p);
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default:
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fprintf(stderr, "cannot determine tunnel mode (ip6ip6, ipip6 or gre)\n");
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}
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return -1;
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}
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static int do_del(int argc, char **argv)
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{
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struct ip6_tnl_parm p;
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struct ip6_tnl_parm2 p;
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ip6_tnl_parm_init(&p, 1);
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if (parse_args(argc, argv, SIOCDELTUNNEL, &p) < 0)
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return -1;
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return tnl_del_ioctl(p.name[0] ? p.name : "ip6tnl0", p.name, &p);
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switch (p.proto) {
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case IPPROTO_IPIP:
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case IPPROTO_IPV6:
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return tnl_del_ioctl("ip6tnl0", p.name, &p);
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case IPPROTO_GRE:
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return tnl_del_ioctl("ip6gre0", p.name, &p);
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default:
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return tnl_del_ioctl(p.name, p.name, &p);
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}
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return -1;
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}
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int do_ip6tunnel(int argc, char **argv)
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@ -85,7 +85,8 @@ void iplink_usage(void)
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if (iplink_have_newlink()) {
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fprintf(stderr, "\n");
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fprintf(stderr, "TYPE := { vlan | veth | vcan | dummy | ifb | macvlan | can |\n");
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fprintf(stderr, " bridge | ipoib | ip6tnl | ipip | sit | vxlan }\n");
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fprintf(stderr, " bridge | ipoib | ip6tnl | ipip | sit | vxlan |\n");
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fprintf(stderr, " gre | gretap | ip6gre | ip6gretap }\n");
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}
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exit(-1);
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}
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@ -243,7 +244,7 @@ static int iplink_parse_vf(int vf, int *argcp, char ***argvp,
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}
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ivt.vf = vf;
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addattr_l(&req->n, sizeof(*req), IFLA_VF_TX_RATE, &ivt, sizeof(ivt));
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} else if (matches(*argv, "spoofchk") == 0) {
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struct ifla_vf_spoofchk ivs;
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NEXT_ARG();
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@ -286,7 +287,6 @@ static int iplink_parse_vf(int vf, int *argcp, char ***argvp,
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return 0;
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}
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int iplink_parse(int argc, char **argv, struct iplink_req *req,
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char **name, char **type, char **link, char **dev, int *group)
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{
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@ -811,7 +811,6 @@ static int set_address(struct ifreq *ifr, int brd)
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return 0;
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}
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static int do_set(int argc, char **argv)
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{
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char *dev = NULL;
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398
ip/link_gre6.c
Normal file
398
ip/link_gre6.c
Normal file
@ -0,0 +1,398 @@
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/*
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* link_gre6.c gre driver module
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*
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* Authors: Dmitry Kozlov <xeb@mail.ru>
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*
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*/
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#include <string.h>
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#include <net/if.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <arpa/inet.h>
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#include <linux/ip.h>
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#include <linux/if_tunnel.h>
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#include <linux/ip6_tunnel.h>
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#include "rt_names.h"
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#include "utils.h"
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#include "ip_common.h"
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#include "tunnel.h"
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#define IP6_FLOWINFO_TCLASS htonl(0x0FF00000)
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#define IP6_FLOWINFO_FLOWLABEL htonl(0x000FFFFF)
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#define DEFAULT_TNL_HOP_LIMIT (64)
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static void usage(void) __attribute__((noreturn));
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static void usage(void)
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{
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fprintf(stderr, "Usage: ip link { add | set | change | replace | del } NAME\n");
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fprintf(stderr, " type { ip6gre | ip6gretap } [ remote ADDR ] [ local ADDR ]\n");
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fprintf(stderr, " [ [i|o]seq ] [ [i|o]key KEY ] [ [i|o]csum ]\n");
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fprintf(stderr, " [ hoplimit TTL ] [ encaplimit ELIM ]\n");
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fprintf(stderr, " [ tclass TCLASS ] [ flowlabel FLOWLABEL ]\n");
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fprintf(stderr, " [ dscp inherit ] [ dev PHYS_DEV ]\n");
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fprintf(stderr, "\n");
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fprintf(stderr, "Where: NAME := STRING\n");
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fprintf(stderr, " ADDR := IPV6_ADDRESS\n");
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fprintf(stderr, " TTL := { 0..255 } (default=%d)\n",
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DEFAULT_TNL_HOP_LIMIT);
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fprintf(stderr, " KEY := { DOTTED_QUAD | NUMBER }\n");
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fprintf(stderr, " ELIM := { none | 0..255 }(default=%d)\n",
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IPV6_DEFAULT_TNL_ENCAP_LIMIT);
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fprintf(stderr, " TCLASS := { 0x0..0xff | inherit }\n");
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fprintf(stderr, " FLOWLABEL := { 0x0..0xfffff | inherit }\n");
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exit(-1);
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}
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static int gre_parse_opt(struct link_util *lu, int argc, char **argv,
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struct nlmsghdr *n)
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{
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struct {
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struct nlmsghdr n;
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struct ifinfomsg i;
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char buf[1024];
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} req;
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struct ifinfomsg *ifi = (struct ifinfomsg *)(n + 1);
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struct rtattr *tb[IFLA_MAX + 1];
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struct rtattr *linkinfo[IFLA_INFO_MAX+1];
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struct rtattr *greinfo[IFLA_GRE_MAX + 1];
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__u16 iflags = 0;
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__u16 oflags = 0;
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unsigned ikey = 0;
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unsigned okey = 0;
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struct in6_addr raddr = IN6ADDR_ANY_INIT;
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struct in6_addr laddr = IN6ADDR_ANY_INIT;
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unsigned link = 0;
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unsigned flowinfo = 0;
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unsigned flags = 0;
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__u8 hop_limit = DEFAULT_TNL_HOP_LIMIT;
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__u8 encap_limit = IPV6_DEFAULT_TNL_ENCAP_LIMIT;
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int len;
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if (!(n->nlmsg_flags & NLM_F_CREATE)) {
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memset(&req, 0, sizeof(req));
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req.n.nlmsg_len = NLMSG_LENGTH(sizeof(*ifi));
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req.n.nlmsg_flags = NLM_F_REQUEST;
|
||||
req.n.nlmsg_type = RTM_GETLINK;
|
||||
req.i.ifi_family = preferred_family;
|
||||
req.i.ifi_index = ifi->ifi_index;
|
||||
|
||||
if (rtnl_talk(&rth, &req.n, 0, 0, &req.n) < 0) {
|
||||
get_failed:
|
||||
fprintf(stderr,
|
||||
"Failed to get existing tunnel info.\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
len = req.n.nlmsg_len;
|
||||
len -= NLMSG_LENGTH(sizeof(*ifi));
|
||||
if (len < 0)
|
||||
goto get_failed;
|
||||
|
||||
parse_rtattr(tb, IFLA_MAX, IFLA_RTA(&req.i), len);
|
||||
|
||||
if (!tb[IFLA_LINKINFO])
|
||||
goto get_failed;
|
||||
|
||||
parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb[IFLA_LINKINFO]);
|
||||
|
||||
if (!linkinfo[IFLA_INFO_DATA])
|
||||
goto get_failed;
|
||||
|
||||
parse_rtattr_nested(greinfo, IFLA_GRE_MAX,
|
||||
linkinfo[IFLA_INFO_DATA]);
|
||||
|
||||
if (greinfo[IFLA_GRE_IKEY])
|
||||
ikey = rta_getattr_u32(greinfo[IFLA_GRE_IKEY]);
|
||||
|
||||
if (greinfo[IFLA_GRE_OKEY])
|
||||
okey = rta_getattr_u32(greinfo[IFLA_GRE_OKEY]);
|
||||
|
||||
if (greinfo[IFLA_GRE_IFLAGS])
|
||||
iflags = rta_getattr_u16(greinfo[IFLA_GRE_IFLAGS]);
|
||||
|
||||
if (greinfo[IFLA_GRE_OFLAGS])
|
||||
oflags = rta_getattr_u16(greinfo[IFLA_GRE_OFLAGS]);
|
||||
|
||||
if (greinfo[IFLA_GRE_LOCAL])
|
||||
memcpy(&laddr, RTA_DATA(greinfo[IFLA_GRE_LOCAL]), sizeof(laddr));
|
||||
|
||||
if (greinfo[IFLA_GRE_REMOTE])
|
||||
memcpy(&raddr, RTA_DATA(greinfo[IFLA_GRE_REMOTE]), sizeof(raddr));
|
||||
|
||||
if (greinfo[IFLA_GRE_TTL])
|
||||
hop_limit = rta_getattr_u8(greinfo[IFLA_GRE_TTL]);
|
||||
|
||||
if (greinfo[IFLA_GRE_LINK])
|
||||
link = rta_getattr_u32(greinfo[IFLA_GRE_LINK]);
|
||||
|
||||
if (greinfo[IFLA_GRE_ENCAP_LIMIT])
|
||||
encap_limit = rta_getattr_u8(greinfo[IFLA_GRE_ENCAP_LIMIT]);
|
||||
|
||||
if (greinfo[IFLA_GRE_FLOWINFO])
|
||||
flowinfo = rta_getattr_u32(greinfo[IFLA_GRE_FLOWINFO]);
|
||||
|
||||
if (greinfo[IFLA_GRE_FLAGS])
|
||||
flags = rta_getattr_u32(greinfo[IFLA_GRE_FLAGS]);
|
||||
}
|
||||
|
||||
while (argc > 0) {
|
||||
if (!matches(*argv, "key")) {
|
||||
unsigned uval;
|
||||
|
||||
NEXT_ARG();
|
||||
iflags |= GRE_KEY;
|
||||
oflags |= GRE_KEY;
|
||||
if (strchr(*argv, '.'))
|
||||
uval = get_addr32(*argv);
|
||||
else {
|
||||
if (get_unsigned(&uval, *argv, 0) < 0) {
|
||||
fprintf(stderr,
|
||||
"Invalid value for \"key\"\n");
|
||||
exit(-1);
|
||||
}
|
||||
uval = htonl(uval);
|
||||
}
|
||||
|
||||
ikey = okey = uval;
|
||||
} else if (!matches(*argv, "ikey")) {
|
||||
unsigned uval;
|
||||
|
||||
NEXT_ARG();
|
||||
iflags |= GRE_KEY;
|
||||
if (strchr(*argv, '.'))
|
||||
uval = get_addr32(*argv);
|
||||
else {
|
||||
if (get_unsigned(&uval, *argv, 0)<0) {
|
||||
fprintf(stderr, "invalid value of \"ikey\"\n");
|
||||
exit(-1);
|
||||
}
|
||||
uval = htonl(uval);
|
||||
}
|
||||
ikey = uval;
|
||||
} else if (!matches(*argv, "okey")) {
|
||||
unsigned uval;
|
||||
|
||||
NEXT_ARG();
|
||||
oflags |= GRE_KEY;
|
||||
if (strchr(*argv, '.'))
|
||||
uval = get_addr32(*argv);
|
||||
else {
|
||||
if (get_unsigned(&uval, *argv, 0)<0) {
|
||||
fprintf(stderr, "invalid value of \"okey\"\n");
|
||||
exit(-1);
|
||||
}
|
||||
uval = htonl(uval);
|
||||
}
|
||||
okey = uval;
|
||||
} else if (!matches(*argv, "seq")) {
|
||||
iflags |= GRE_SEQ;
|
||||
oflags |= GRE_SEQ;
|
||||
} else if (!matches(*argv, "iseq")) {
|
||||
iflags |= GRE_SEQ;
|
||||
} else if (!matches(*argv, "oseq")) {
|
||||
oflags |= GRE_SEQ;
|
||||
} else if (!matches(*argv, "csum")) {
|
||||
iflags |= GRE_CSUM;
|
||||
oflags |= GRE_CSUM;
|
||||
} else if (!matches(*argv, "icsum")) {
|
||||
iflags |= GRE_CSUM;
|
||||
} else if (!matches(*argv, "ocsum")) {
|
||||
oflags |= GRE_CSUM;
|
||||
} else if (!matches(*argv, "remote")) {
|
||||
inet_prefix addr;
|
||||
NEXT_ARG();
|
||||
get_prefix(&addr, *argv, preferred_family);
|
||||
if (addr.family == AF_UNSPEC)
|
||||
invarg("\"remote\" address family is AF_UNSPEC", *argv);
|
||||
memcpy(&raddr, &addr.data, sizeof(raddr));
|
||||
} else if (!matches(*argv, "local")) {
|
||||
inet_prefix addr;
|
||||
NEXT_ARG();
|
||||
get_prefix(&addr, *argv, preferred_family);
|
||||
if (addr.family == AF_UNSPEC)
|
||||
invarg("\"local\" address family is AF_UNSPEC", *argv);
|
||||
memcpy(&laddr, &addr.data, sizeof(laddr));
|
||||
} else if (!matches(*argv, "dev")) {
|
||||
NEXT_ARG();
|
||||
link = if_nametoindex(*argv);
|
||||
if (link == 0)
|
||||
exit(-1);
|
||||
} else if (!matches(*argv, "ttl") ||
|
||||
!matches(*argv, "hoplimit")) {
|
||||
__u8 uval;
|
||||
NEXT_ARG();
|
||||
if (get_u8(&uval, *argv, 0))
|
||||
invarg("invalid TTL", *argv);
|
||||
hop_limit = uval;
|
||||
} else if (!matches(*argv, "tos") ||
|
||||
!matches(*argv, "tclass") ||
|
||||
!matches(*argv, "dsfield")) {
|
||||
__u8 uval;
|
||||
NEXT_ARG();
|
||||
if (strcmp(*argv, "inherit") == 0)
|
||||
flags |= IP6_TNL_F_USE_ORIG_TCLASS;
|
||||
else {
|
||||
if (get_u8(&uval, *argv, 16))
|
||||
invarg("invalid TClass", *argv);
|
||||
flowinfo |= htonl((__u32)uval << 20) & IP6_FLOWINFO_TCLASS;
|
||||
flags &= ~IP6_TNL_F_USE_ORIG_TCLASS;
|
||||
}
|
||||
} else if (strcmp(*argv, "flowlabel") == 0 ||
|
||||
strcmp(*argv, "fl") == 0) {
|
||||
__u32 uval;
|
||||
NEXT_ARG();
|
||||
if (strcmp(*argv, "inherit") == 0)
|
||||
flags |= IP6_TNL_F_USE_ORIG_FLOWLABEL;
|
||||
else {
|
||||
if (get_u32(&uval, *argv, 16))
|
||||
invarg("invalid Flowlabel", *argv);
|
||||
if (uval > 0xFFFFF)
|
||||
invarg("invalid Flowlabel", *argv);
|
||||
flowinfo |= htonl(uval) & IP6_FLOWINFO_FLOWLABEL;
|
||||
flags &= ~IP6_TNL_F_USE_ORIG_FLOWLABEL;
|
||||
}
|
||||
} else if (strcmp(*argv, "dscp") == 0) {
|
||||
NEXT_ARG();
|
||||
if (strcmp(*argv, "inherit") != 0)
|
||||
invarg("not inherit", *argv);
|
||||
flags |= IP6_TNL_F_RCV_DSCP_COPY;
|
||||
} else
|
||||
usage();
|
||||
argc--; argv++;
|
||||
}
|
||||
|
||||
addattr32(n, 1024, IFLA_GRE_IKEY, ikey);
|
||||
addattr32(n, 1024, IFLA_GRE_OKEY, okey);
|
||||
addattr_l(n, 1024, IFLA_GRE_IFLAGS, &iflags, 2);
|
||||
addattr_l(n, 1024, IFLA_GRE_OFLAGS, &oflags, 2);
|
||||
addattr_l(n, 1024, IFLA_GRE_LOCAL, &laddr, sizeof(laddr));
|
||||
addattr_l(n, 1024, IFLA_GRE_REMOTE, &raddr, sizeof(raddr));
|
||||
if (link)
|
||||
addattr32(n, 1024, IFLA_GRE_LINK, link);
|
||||
addattr_l(n, 1024, IFLA_GRE_TTL, &hop_limit, 1);
|
||||
addattr_l(n, 1024, IFLA_GRE_ENCAP_LIMIT, &encap_limit, 1);
|
||||
addattr_l(n, 1024, IFLA_GRE_FLOWINFO, &flowinfo, 4);
|
||||
addattr_l(n, 1024, IFLA_GRE_FLAGS, &flowinfo, 4);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void gre_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
|
||||
{
|
||||
char s1[1024];
|
||||
char s2[64];
|
||||
const char *local = "any";
|
||||
const char *remote = "any";
|
||||
unsigned iflags = 0;
|
||||
unsigned oflags = 0;
|
||||
unsigned flags = 0;
|
||||
unsigned flowinfo = 0;
|
||||
struct in6_addr in6_addr_any = IN6ADDR_ANY_INIT;
|
||||
|
||||
if (!tb)
|
||||
return;
|
||||
|
||||
if (tb[IFLA_GRE_FLAGS])
|
||||
flags = rta_getattr_u32(tb[IFLA_GRE_FLAGS]);
|
||||
|
||||
if (tb[IFLA_GRE_FLOWINFO])
|
||||
flags = rta_getattr_u32(tb[IFLA_GRE_FLOWINFO]);
|
||||
|
||||
if (tb[IFLA_GRE_REMOTE]) {
|
||||
struct in6_addr addr;
|
||||
memcpy(&addr, RTA_DATA(tb[IFLA_GRE_REMOTE]), sizeof(addr));
|
||||
|
||||
if (memcmp(&addr, &in6_addr_any, sizeof(addr)))
|
||||
remote = format_host(AF_INET6, sizeof(addr), &addr, s1, sizeof(s1));
|
||||
}
|
||||
|
||||
fprintf(f, "remote %s ", remote);
|
||||
|
||||
if (tb[IFLA_GRE_LOCAL]) {
|
||||
struct in6_addr addr;
|
||||
memcpy(&addr, RTA_DATA(tb[IFLA_GRE_LOCAL]), sizeof(addr));
|
||||
|
||||
if (memcmp(&addr, &in6_addr_any, sizeof(addr)))
|
||||
local = format_host(AF_INET6, sizeof(addr), &addr, s1, sizeof(s1));
|
||||
}
|
||||
|
||||
fprintf(f, "local %s ", local);
|
||||
|
||||
if (tb[IFLA_GRE_LINK] && rta_getattr_u32(tb[IFLA_GRE_LINK])) {
|
||||
unsigned link = rta_getattr_u32(tb[IFLA_GRE_LINK]);
|
||||
const char *n = if_indextoname(link, s2);
|
||||
|
||||
if (n)
|
||||
fprintf(f, "dev %s ", n);
|
||||
else
|
||||
fprintf(f, "dev %u ", link);
|
||||
}
|
||||
|
||||
if (tb[IFLA_GRE_TTL] && rta_getattr_u8(tb[IFLA_GRE_TTL]))
|
||||
fprintf(f, "hoplimit %d ", rta_getattr_u8(tb[IFLA_GRE_TTL]));
|
||||
|
||||
if (flags & IP6_TNL_F_IGN_ENCAP_LIMIT)
|
||||
fprintf(f, "encaplimit none ");
|
||||
else if (tb[IFLA_GRE_ENCAP_LIMIT]) {
|
||||
int encap_limit = rta_getattr_u8(tb[IFLA_GRE_ENCAP_LIMIT]);
|
||||
|
||||
fprintf(f, "encaplimit %d ", encap_limit);
|
||||
}
|
||||
|
||||
if (flags & IP6_TNL_F_USE_ORIG_FLOWLABEL)
|
||||
fprintf(f, "flowlabel inherit ");
|
||||
else
|
||||
fprintf(f, "flowlabel 0x%05x ", ntohl(flowinfo & IP6_FLOWINFO_FLOWLABEL));
|
||||
|
||||
if (flags & IP6_TNL_F_RCV_DSCP_COPY)
|
||||
fprintf(f, "dscp inherit ");
|
||||
|
||||
if (tb[IFLA_GRE_IFLAGS])
|
||||
iflags = rta_getattr_u16(tb[IFLA_GRE_IFLAGS]);
|
||||
|
||||
if (tb[IFLA_GRE_OFLAGS])
|
||||
oflags = rta_getattr_u16(tb[IFLA_GRE_OFLAGS]);
|
||||
|
||||
if ((iflags & GRE_KEY) && tb[IFLA_GRE_IKEY]) {
|
||||
inet_ntop(AF_INET, RTA_DATA(tb[IFLA_GRE_IKEY]), s2, sizeof(s2));
|
||||
fprintf(f, "ikey %s ", s2);
|
||||
}
|
||||
|
||||
if ((oflags & GRE_KEY) && tb[IFLA_GRE_OKEY]) {
|
||||
inet_ntop(AF_INET, RTA_DATA(tb[IFLA_GRE_OKEY]), s2, sizeof(s2));
|
||||
fprintf(f, "okey %s ", s2);
|
||||
}
|
||||
|
||||
if (iflags & GRE_SEQ)
|
||||
fputs("iseq ", f);
|
||||
if (oflags & GRE_SEQ)
|
||||
fputs("oseq ", f);
|
||||
if (iflags & GRE_CSUM)
|
||||
fputs("icsum ", f);
|
||||
if (oflags & GRE_CSUM)
|
||||
fputs("ocsum ", f);
|
||||
}
|
||||
|
||||
struct link_util ip6gre_link_util = {
|
||||
.id = "ip6gre",
|
||||
.maxattr = IFLA_GRE_MAX,
|
||||
.parse_opt = gre_parse_opt,
|
||||
.print_opt = gre_print_opt,
|
||||
};
|
||||
|
||||
struct link_util ip6gretap_link_util = {
|
||||
.id = "ip6gretap",
|
||||
.maxattr = IFLA_GRE_MAX,
|
||||
.parse_opt = gre_parse_opt,
|
||||
.print_opt = gre_print_opt,
|
||||
};
|
||||
Loading…
Reference in New Issue
Block a user