#include "ip_common.h"
#include "tunnel.h"
-static void print_usage(FILE *f)
+static void gre_print_help(struct link_util *lu, int argc, char **argv, FILE *f)
{
fprintf(f,
- "Usage: ... { gre | gretap | erspan } [ remote ADDR ]\n"
- " [ local ADDR ]\n"
- " [ [i|o]seq ]\n"
- " [ [i|o]key KEY ]\n"
- " [ [i|o]csum ]\n"
- " [ ttl TTL ]\n"
- " [ tos TOS ]\n"
- " [ [no]pmtudisc ]\n"
- " [ [no]ignore-df ]\n"
- " [ dev PHYS_DEV ]\n"
- " [ noencap ]\n"
- " [ encap { fou | gue | none } ]\n"
- " [ encap-sport PORT ]\n"
- " [ encap-dport PORT ]\n"
- " [ [no]encap-csum ]\n"
- " [ [no]encap-csum6 ]\n"
- " [ [no]encap-remcsum ]\n"
- " [ external ]\n"
- " [ fwmark MARK ]\n"
- " [ erspan_ver version ]\n"
- " [ erspan IDX ]\n"
- " [ erspan_dir { ingress | egress } ]\n"
- " [ erspan_hwid hwid ]\n"
- " [ external ]\n"
+ "Usage: ... %-9s [ remote ADDR ]\n",
+ lu->id
+ );
+ fprintf(f,
+ " [ local ADDR ]\n"
+ " [ [no][i|o]seq ]\n"
+ " [ [i|o]key KEY | no[i|o]key ]\n"
+ " [ [no][i|o]csum ]\n"
+ " [ ttl TTL ]\n"
+ " [ tos TOS ]\n"
+ " [ [no]pmtudisc ]\n"
+ " [ [no]ignore-df ]\n"
+ " [ dev PHYS_DEV ]\n"
+ " [ fwmark MARK ]\n"
+ " [ external ]\n"
+ " [ noencap ]\n"
+ " [ encap { fou | gue | none } ]\n"
+ " [ encap-sport PORT ]\n"
+ " [ encap-dport PORT ]\n"
+ " [ [no]encap-csum ]\n"
+ " [ [no]encap-csum6 ]\n"
+ " [ [no]encap-remcsum ]\n"
+ " [ erspan_ver version ]\n"
+ " [ erspan IDX ]\n"
+ " [ erspan_dir { ingress | egress } ]\n"
+ " [ erspan_hwid hwid ]\n"
"\n"
+ );
+ fprintf(f,
"Where: ADDR := { IP_ADDRESS | any }\n"
" TOS := { NUMBER | inherit }\n"
" TTL := { 1..255 | inherit }\n"
);
}
-static void usage(void) __attribute__((noreturn));
-static void usage(void)
-{
- print_usage(stderr);
- exit(-1);
-}
-
static int gre_parse_opt(struct link_util *lu, int argc, char **argv,
struct nlmsghdr *n)
{
- struct ifinfomsg *ifi = (struct ifinfomsg *)(n + 1);
+ struct ifinfomsg *ifi = NLMSG_DATA(n);
struct {
struct nlmsghdr n;
struct ifinfomsg i;
struct rtattr *tb[IFLA_MAX + 1];
struct rtattr *linkinfo[IFLA_INFO_MAX+1];
struct rtattr *greinfo[IFLA_GRE_MAX + 1];
+ int len;
__u16 iflags = 0;
__u16 oflags = 0;
__be32 ikey = 0;
__be32 okey = 0;
- unsigned int saddr = 0;
- unsigned int daddr = 0;
- unsigned int link = 0;
+ inet_prefix saddr, daddr;
__u8 pmtudisc = 1;
- __u8 ttl = 0;
+ __u8 ignore_df = 0;
__u8 tos = 0;
- int len;
+ __u8 ttl = 0;
+ __u32 link = 0;
__u16 encaptype = 0;
__u16 encapflags = 0;
__u16 encapsport = 0;
__u16 encapdport = 0;
__u8 metadata = 0;
- __u8 ignore_df = 0;
__u32 fwmark = 0;
__u32 erspan_idx = 0;
__u8 erspan_ver = 0;
__u8 erspan_dir = 0;
__u16 erspan_hwid = 0;
+ inet_prefix_reset(&saddr);
+ inet_prefix_reset(&daddr);
+
if (!(n->nlmsg_flags & NLM_F_CREATE)) {
+ const struct rtattr *rta;
+
if (rtnl_talk(&rth, &req.n, &answer) < 0) {
get_failed:
fprintf(stderr,
parse_rtattr_nested(greinfo, IFLA_GRE_MAX,
linkinfo[IFLA_INFO_DATA]);
+ rta = greinfo[IFLA_GRE_LOCAL];
+ if (rta && get_addr_rta(&saddr, rta, AF_INET))
+ goto get_failed;
+
+ rta = greinfo[IFLA_GRE_REMOTE];
+ if (rta && get_addr_rta(&daddr, rta, AF_INET))
+ goto get_failed;
+
if (greinfo[IFLA_GRE_IKEY])
ikey = rta_getattr_u32(greinfo[IFLA_GRE_IKEY]);
if (greinfo[IFLA_GRE_OFLAGS])
oflags = rta_getattr_u16(greinfo[IFLA_GRE_OFLAGS]);
- if (greinfo[IFLA_GRE_LOCAL])
- saddr = rta_getattr_u32(greinfo[IFLA_GRE_LOCAL]);
-
- if (greinfo[IFLA_GRE_REMOTE])
- daddr = rta_getattr_u32(greinfo[IFLA_GRE_REMOTE]);
-
if (greinfo[IFLA_GRE_PMTUDISC])
pmtudisc = rta_getattr_u8(
greinfo[IFLA_GRE_PMTUDISC]);
- if (greinfo[IFLA_GRE_TTL])
- ttl = rta_getattr_u8(greinfo[IFLA_GRE_TTL]);
+ if (greinfo[IFLA_GRE_IGNORE_DF])
+ ignore_df =
+ !!rta_getattr_u8(greinfo[IFLA_GRE_IGNORE_DF]);
if (greinfo[IFLA_GRE_TOS])
tos = rta_getattr_u8(greinfo[IFLA_GRE_TOS]);
+ if (greinfo[IFLA_GRE_TTL])
+ ttl = 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_TYPE])
encaptype = rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_TYPE]);
+
if (greinfo[IFLA_GRE_ENCAP_FLAGS])
encapflags = rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_FLAGS]);
+
if (greinfo[IFLA_GRE_ENCAP_SPORT])
encapsport = rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_SPORT]);
+
if (greinfo[IFLA_GRE_ENCAP_DPORT])
encapdport = rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_DPORT]);
if (greinfo[IFLA_GRE_COLLECT_METADATA])
metadata = 1;
- if (greinfo[IFLA_GRE_IGNORE_DF])
- ignore_df =
- !!rta_getattr_u8(greinfo[IFLA_GRE_IGNORE_DF]);
-
if (greinfo[IFLA_GRE_FWMARK])
fwmark = rta_getattr_u32(greinfo[IFLA_GRE_FWMARK]);
iflags |= GRE_KEY;
oflags |= GRE_KEY;
ikey = okey = tnl_parse_key("key", *argv);
+ } else if (!matches(*argv, "nokey")) {
+ iflags &= ~GRE_KEY;
+ oflags &= ~GRE_KEY;
+ ikey = okey = 0;
} else if (!matches(*argv, "ikey")) {
NEXT_ARG();
iflags |= GRE_KEY;
ikey = tnl_parse_key("ikey", *argv);
+ } else if (!matches(*argv, "noikey")) {
+ iflags &= ~GRE_KEY;
+ ikey = 0;
} else if (!matches(*argv, "okey")) {
NEXT_ARG();
oflags |= GRE_KEY;
okey = tnl_parse_key("okey", *argv);
+ } else if (!matches(*argv, "nookey")) {
+ oflags &= ~GRE_KEY;
+ okey = 0;
} else if (!matches(*argv, "seq")) {
iflags |= GRE_SEQ;
oflags |= GRE_SEQ;
+ } else if (!matches(*argv, "noseq")) {
+ iflags &= ~GRE_SEQ;
+ oflags &= ~GRE_SEQ;
} else if (!matches(*argv, "iseq")) {
iflags |= GRE_SEQ;
+ } else if (!matches(*argv, "noiseq")) {
+ iflags &= ~GRE_SEQ;
} else if (!matches(*argv, "oseq")) {
oflags |= GRE_SEQ;
+ } else if (!matches(*argv, "nooseq")) {
+ oflags &= ~GRE_SEQ;
} else if (!matches(*argv, "csum")) {
iflags |= GRE_CSUM;
oflags |= GRE_CSUM;
+ } else if (!matches(*argv, "nocsum")) {
+ iflags &= ~GRE_CSUM;
+ oflags &= ~GRE_CSUM;
} else if (!matches(*argv, "icsum")) {
iflags |= GRE_CSUM;
+ } else if (!matches(*argv, "noicsum")) {
+ iflags &= ~GRE_CSUM;
} else if (!matches(*argv, "ocsum")) {
oflags |= GRE_CSUM;
+ } else if (!matches(*argv, "noocsum")) {
+ oflags &= ~GRE_CSUM;
} else if (!matches(*argv, "nopmtudisc")) {
pmtudisc = 0;
} else if (!matches(*argv, "pmtudisc")) {
pmtudisc = 1;
} else if (!matches(*argv, "remote")) {
NEXT_ARG();
- daddr = get_addr32(*argv);
+ get_addr(&daddr, *argv, AF_INET);
} else if (!matches(*argv, "local")) {
NEXT_ARG();
- saddr = get_addr32(*argv);
+ get_addr(&saddr, *argv, AF_INET);
} else if (!matches(*argv, "dev")) {
NEXT_ARG();
- link = if_nametoindex(*argv);
- if (link == 0) {
- fprintf(stderr, "Cannot find device \"%s\"\n",
- *argv);
- exit(-1);
- }
+ link = ll_name_to_index(*argv);
+ if (!link)
+ exit(nodev(*argv));
} else if (!matches(*argv, "ttl") ||
- !matches(*argv, "hoplimit")) {
- unsigned int uval;
-
+ !matches(*argv, "hoplimit") ||
+ !matches(*argv, "hlim")) {
NEXT_ARG();
if (strcmp(*argv, "inherit") != 0) {
- if (get_unsigned(&uval, *argv, 0))
+ if (get_u8(&ttl, *argv, 0))
invarg("invalid TTL\n", *argv);
- if (uval > 255)
- invarg("TTL must be <= 255\n", *argv);
- ttl = uval;
} else
ttl = 0;
} else if (!matches(*argv, "tos") ||
NEXT_ARG();
if (get_u16(&erspan_hwid, *argv, 0))
invarg("invalid erspan hwid\n", *argv);
- } else
- usage();
+ } else {
+ gre_print_help(lu, argc, argv, stderr);
+ return -1;
+ }
argc--; argv++;
}
- if (!ikey && IN_MULTICAST(ntohl(daddr))) {
- ikey = daddr;
- iflags |= GRE_KEY;
- }
- if (!okey && IN_MULTICAST(ntohl(daddr))) {
- okey = daddr;
- oflags |= GRE_KEY;
- }
- if (IN_MULTICAST(ntohl(daddr)) && !saddr) {
- fprintf(stderr, "A broadcast tunnel requires a source address.\n");
- return -1;
+ if (is_addrtype_inet_multi(&daddr)) {
+ if (!ikey) {
+ ikey = daddr.data[0];
+ iflags |= GRE_KEY;
+ }
+ if (!okey) {
+ okey = daddr.data[0];
+ oflags |= GRE_KEY;
+ }
+ if (!is_addrtype_inet_not_unspec(&saddr)) {
+ fprintf(stderr,
+ "A broadcast tunnel requires a source address.\n");
+ return -1;
+ }
}
- if (!metadata) {
- 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, &saddr, 4);
- addattr_l(n, 1024, IFLA_GRE_REMOTE, &daddr, 4);
- addattr_l(n, 1024, IFLA_GRE_PMTUDISC, &pmtudisc, 1);
- if (link)
- addattr32(n, 1024, IFLA_GRE_LINK, link);
- addattr_l(n, 1024, IFLA_GRE_TTL, &ttl, 1);
- addattr_l(n, 1024, IFLA_GRE_TOS, &tos, 1);
- addattr32(n, 1024, IFLA_GRE_FWMARK, fwmark);
- if (erspan_ver) {
- addattr8(n, 1024, IFLA_GRE_ERSPAN_VER, erspan_ver);
- if (erspan_ver == 1 && erspan_idx != 0) {
- addattr32(n, 1024, IFLA_GRE_ERSPAN_INDEX, erspan_idx);
- } else if (erspan_ver == 2) {
- addattr8(n, 1024, IFLA_GRE_ERSPAN_DIR, erspan_dir);
- addattr16(n, 1024, IFLA_GRE_ERSPAN_HWID, erspan_hwid);
- }
- }
- } else {
+ if (metadata) {
addattr_l(n, 1024, IFLA_GRE_COLLECT_METADATA, NULL, 0);
+ return 0;
}
+ 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);
+ if (is_addrtype_inet_not_unspec(&saddr))
+ addattr_l(n, 1024, IFLA_GRE_LOCAL, saddr.data, saddr.bytelen);
+ if (is_addrtype_inet_not_unspec(&daddr))
+ addattr_l(n, 1024, IFLA_GRE_REMOTE, daddr.data, daddr.bytelen);
+ addattr_l(n, 1024, IFLA_GRE_PMTUDISC, &pmtudisc, 1);
+ if (ignore_df)
+ addattr8(n, 1024, IFLA_GRE_IGNORE_DF, ignore_df & 1);
+ addattr_l(n, 1024, IFLA_GRE_TOS, &tos, 1);
+ if (link)
+ addattr32(n, 1024, IFLA_GRE_LINK, link);
+ addattr_l(n, 1024, IFLA_GRE_TTL, &ttl, 1);
+ addattr32(n, 1024, IFLA_GRE_FWMARK, fwmark);
+ if (erspan_ver) {
+ addattr8(n, 1024, IFLA_GRE_ERSPAN_VER, erspan_ver);
+ if (erspan_ver == 1 && erspan_idx != 0) {
+ addattr32(n, 1024, IFLA_GRE_ERSPAN_INDEX, erspan_idx);
+ } else if (erspan_ver == 2) {
+ addattr8(n, 1024, IFLA_GRE_ERSPAN_DIR, erspan_dir);
+ addattr16(n, 1024, IFLA_GRE_ERSPAN_HWID, erspan_hwid);
+ }
+ }
addattr16(n, 1024, IFLA_GRE_ENCAP_TYPE, encaptype);
addattr16(n, 1024, IFLA_GRE_ENCAP_FLAGS, encapflags);
addattr16(n, 1024, IFLA_GRE_ENCAP_SPORT, htons(encapsport));
addattr16(n, 1024, IFLA_GRE_ENCAP_DPORT, htons(encapdport));
- if (ignore_df)
- addattr8(n, 1024, IFLA_GRE_IGNORE_DF, ignore_df & 1);
-
return 0;
}
-static void gre_print_direct_opt(FILE *f, struct rtattr *tb[])
+static void gre_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
{
char s2[64];
- const char *local = "any";
- const char *remote = "any";
- unsigned int iflags = 0;
- unsigned int oflags = 0;
+ __u16 iflags = 0;
+ __u16 oflags = 0;
__u8 ttl = 0;
__u8 tos = 0;
- if (tb[IFLA_GRE_REMOTE]) {
- unsigned int addr = rta_getattr_u32(tb[IFLA_GRE_REMOTE]);
-
- if (addr)
- remote = format_host(AF_INET, 4, &addr);
- }
-
- print_string(PRINT_ANY, "remote", "remote %s ", remote);
-
- if (tb[IFLA_GRE_LOCAL]) {
- unsigned int addr = rta_getattr_u32(tb[IFLA_GRE_LOCAL]);
+ if (!tb)
+ return;
- if (addr)
- local = format_host(AF_INET, 4, &addr);
+ if (tb[IFLA_GRE_COLLECT_METADATA]) {
+ print_bool(PRINT_ANY, "external", "external", true);
+ return;
}
- print_string(PRINT_ANY, "local", "local %s ", local);
+ tnl_print_endpoint("remote", tb[IFLA_GRE_REMOTE], AF_INET);
+ tnl_print_endpoint("local", tb[IFLA_GRE_LOCAL], AF_INET);
if (tb[IFLA_GRE_LINK]) {
- unsigned int link = rta_getattr_u32(tb[IFLA_GRE_LINK]);
+ __u32 link = rta_getattr_u32(tb[IFLA_GRE_LINK]);
if (link) {
print_string(PRINT_ANY, "link", "dev %s ",
tos = rta_getattr_u8(tb[IFLA_GRE_TOS]);
if (tos) {
if (is_json_context() || tos != 1)
- print_0xhex(PRINT_ANY, "tos", "tos 0x%x ", tos);
+ print_0xhex(PRINT_ANY, "tos", "tos %#llx ", tos);
else
print_string(PRINT_FP, NULL, "tos %s ", "inherit");
}
print_bool(PRINT_JSON, "pmtudisc", NULL, true);
}
+ if (tb[IFLA_GRE_IGNORE_DF] && rta_getattr_u8(tb[IFLA_GRE_IGNORE_DF]))
+ print_bool(PRINT_ANY, "ignore_df", "ignore-df ", true);
+
if (tb[IFLA_GRE_IFLAGS])
iflags = rta_getattr_u16(tb[IFLA_GRE_IFLAGS]);
if (fwmark) {
print_0xhex(PRINT_ANY,
- "fwmark", "fwmark 0x%x ", fwmark);
+ "fwmark", "fwmark %#llx ", fwmark);
}
}
-}
-
-static void gre_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
-{
- if (!tb)
- return;
-
- if (!tb[IFLA_GRE_COLLECT_METADATA])
- gre_print_direct_opt(f, tb);
- else
- print_bool(PRINT_ANY, "external", "external ", true);
-
- if (tb[IFLA_GRE_IGNORE_DF] && rta_getattr_u8(tb[IFLA_GRE_IGNORE_DF]))
- print_bool(PRINT_ANY, "ignore_df", "ignore-df ", true);
if (tb[IFLA_GRE_ERSPAN_INDEX]) {
__u32 erspan_idx = rta_getattr_u32(tb[IFLA_GRE_ERSPAN_INDEX]);
- print_uint(PRINT_ANY, "erspan_index", "erspan_index %u ", erspan_idx);
+ print_uint(PRINT_ANY,
+ "erspan_index", "erspan_index %u ", erspan_idx);
}
if (tb[IFLA_GRE_ERSPAN_VER]) {
__u8 erspan_ver = rta_getattr_u8(tb[IFLA_GRE_ERSPAN_VER]);
- print_uint(PRINT_ANY, "erspan_ver", "erspan_ver %u ", erspan_ver);
+ print_uint(PRINT_ANY,
+ "erspan_ver", "erspan_ver %u ", erspan_ver);
}
if (tb[IFLA_GRE_ERSPAN_DIR]) {
if (tb[IFLA_GRE_ERSPAN_HWID]) {
__u16 erspan_hwid = rta_getattr_u16(tb[IFLA_GRE_ERSPAN_HWID]);
- print_hex(PRINT_ANY, "erspan_hwid", "erspan_hwid 0x%x ", erspan_hwid);
+ print_0xhex(PRINT_ANY,
+ "erspan_hwid", "erspan_hwid %#llx ", erspan_hwid);
}
tnl_print_encap(tb,
IFLA_GRE_ENCAP_DPORT);
}
-static void gre_print_help(struct link_util *lu, int argc, char **argv,
- FILE *f)
-{
- print_usage(f);
-}
-
struct link_util gre_link_util = {
.id = "gre",
.maxattr = IFLA_GRE_MAX,
projects / mirror_iproute2.git / blobdiff