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iproute2
Commit 909dfe2c authored by Pavel Emelyanov's avatar Pavel Emelyanov Committed by Stephen Hemminger
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iplink_parse() routine 

This routine parses CLI attributes, describing generic link
parameters such as name, address, etc.

This is mostly copy-pasted from iplink_modify().
Signed-off-by: default avatarPavel Emelyanov <xemul@openvz.org>
Acked-by: default avatarPatrick McHardy <kaber@trash.net>
Signed-off-by: default avatarStephen Hemminger <shemminger@linux-foundation.org>
parent d84914a0
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Showing with 76 additions and 54 deletions
include/utils.h
View file @ 909dfe2c
......@@ -147,4 +147,7 @@ extern int cmdlineno;
extern ssize_t getcmdline(char **line, size_t *len, FILE *in);
extern int makeargs(char *line, char *argv[], int maxargs);
struct iplink_req;
int iplink_parse(int argc, char **argv, struct iplink_req *req,
char **name, char **type, char **link, char **dev);
#endif /* __UTILS_H__ */
ip/iplink.c
View file @ 909dfe2c
......@@ -143,140 +143,159 @@ static int iplink_have_newlink(void)
}
#endif /* ! IPLINK_IOCTL_COMPAT */
static int iplink_modify(int cmd, unsigned int flags, int argc, char **argv)
struct iplink_req {
struct nlmsghdr n;
struct ifinfomsg i;
char buf[1024];
};
int iplink_parse(int argc, char **argv, struct iplink_req *req,
char **name, char **type, char **link, char **dev)
{
int ret, len;
char abuf[32];
int qlen = -1;
int mtu = -1;
int len;
char abuf[32];
char *dev = NULL;
char *name = NULL;
char *link = NULL;
char *type = NULL;
struct link_util *lu = NULL;
struct {
struct nlmsghdr n;
struct ifinfomsg i;
char buf[1024];
} req;
memset(&req, 0, sizeof(req));
req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
req.n.nlmsg_flags = NLM_F_REQUEST|flags;
req.n.nlmsg_type = cmd;
req.i.ifi_family = preferred_family;
ret = argc;
while (argc > 0) {
if (strcmp(*argv, "up") == 0) {
req.i.ifi_change |= IFF_UP;
req.i.ifi_flags |= IFF_UP;
req->i.ifi_change |= IFF_UP;
req->i.ifi_flags |= IFF_UP;
} else if (strcmp(*argv, "down") == 0) {
req.i.ifi_change |= IFF_UP;
req.i.ifi_flags &= ~IFF_UP;
req->i.ifi_change |= IFF_UP;
req->i.ifi_flags &= ~IFF_UP;
} else if (strcmp(*argv, "name") == 0) {
NEXT_ARG();
name = *argv;
*name = *argv;
} else if (matches(*argv, "link") == 0) {
NEXT_ARG();
link = *argv;
*link = *argv;
} else if (matches(*argv, "address") == 0) {
NEXT_ARG();
len = ll_addr_a2n(abuf, sizeof(abuf), *argv);
addattr_l(&req.n, sizeof(req), IFLA_ADDRESS, abuf, len);
addattr_l(&req->n, sizeof(*req), IFLA_ADDRESS, abuf, len);
} else if (matches(*argv, "broadcast") == 0 ||
strcmp(*argv, "brd") == 0) {
strcmp(*argv, "brd") == 0) {
NEXT_ARG();
len = ll_addr_a2n(abuf, sizeof(abuf), *argv);
addattr_l(&req.n, sizeof(req), IFLA_BROADCAST, abuf, len);
addattr_l(&req->n, sizeof(*req), IFLA_BROADCAST, abuf, len);
} else if (matches(*argv, "txqueuelen") == 0 ||
strcmp(*argv, "qlen") == 0 ||
matches(*argv, "txqlen") == 0) {
strcmp(*argv, "qlen") == 0 ||
matches(*argv, "txqlen") == 0) {
NEXT_ARG();
if (qlen != -1)
duparg("txqueuelen", *argv);
if (get_integer(&qlen, *argv, 0))
invarg("Invalid \"txqueuelen\" value\n", *argv);
addattr_l(&req.n, sizeof(req), IFLA_TXQLEN, &qlen, 4);
addattr_l(&req->n, sizeof(*req), IFLA_TXQLEN, &qlen, 4);
} else if (strcmp(*argv, "mtu") == 0) {
NEXT_ARG();
if (mtu != -1)
duparg("mtu", *argv);
if (get_integer(&mtu, *argv, 0))
invarg("Invalid \"mtu\" value\n", *argv);
addattr_l(&req.n, sizeof(req), IFLA_MTU, &mtu, 4);
addattr_l(&req->n, sizeof(*req), IFLA_MTU, &mtu, 4);
} else if (strcmp(*argv, "multicast") == 0) {
NEXT_ARG();
req.i.ifi_change |= IFF_MULTICAST;
req->i.ifi_change |= IFF_MULTICAST;
if (strcmp(*argv, "on") == 0) {
req.i.ifi_flags |= IFF_MULTICAST;
req->i.ifi_flags |= IFF_MULTICAST;
} else if (strcmp(*argv, "off") == 0) {
req.i.ifi_flags &= ~IFF_MULTICAST;
req->i.ifi_flags &= ~IFF_MULTICAST;
} else
return on_off("multicast");
} else if (strcmp(*argv, "allmulticast") == 0) {
NEXT_ARG();
req.i.ifi_change |= IFF_ALLMULTI;
req->i.ifi_change |= IFF_ALLMULTI;
if (strcmp(*argv, "on") == 0) {
req.i.ifi_flags |= IFF_ALLMULTI;
req->i.ifi_flags |= IFF_ALLMULTI;
} else if (strcmp(*argv, "off") == 0) {
req.i.ifi_flags &= ~IFF_ALLMULTI;
req->i.ifi_flags &= ~IFF_ALLMULTI;
} else
return on_off("allmulticast");
} else if (strcmp(*argv, "promisc") == 0) {
NEXT_ARG();
req.i.ifi_change |= IFF_PROMISC;
req->i.ifi_change |= IFF_PROMISC;
if (strcmp(*argv, "on") == 0) {
req.i.ifi_flags |= IFF_PROMISC;
req->i.ifi_flags |= IFF_PROMISC;
} else if (strcmp(*argv, "off") == 0) {
req.i.ifi_flags &= ~IFF_PROMISC;
req->i.ifi_flags &= ~IFF_PROMISC;
} else
return on_off("promisc");
} else if (strcmp(*argv, "trailers") == 0) {
NEXT_ARG();
req.i.ifi_change |= IFF_NOTRAILERS;
req->i.ifi_change |= IFF_NOTRAILERS;
if (strcmp(*argv, "off") == 0) {
req.i.ifi_flags |= IFF_NOTRAILERS;
req->i.ifi_flags |= IFF_NOTRAILERS;
} else if (strcmp(*argv, "on") == 0) {
req.i.ifi_flags &= ~IFF_NOTRAILERS;
req->i.ifi_flags &= ~IFF_NOTRAILERS;
} else
return on_off("trailers");
} else if (strcmp(*argv, "arp") == 0) {
NEXT_ARG();
req.i.ifi_change |= IFF_NOARP;
req->i.ifi_change |= IFF_NOARP;
if (strcmp(*argv, "on") == 0) {
req.i.ifi_flags &= ~IFF_NOARP;
req->i.ifi_flags &= ~IFF_NOARP;
} else if (strcmp(*argv, "off") == 0) {
req.i.ifi_flags |= IFF_NOARP;
req->i.ifi_flags |= IFF_NOARP;
} else
return on_off("noarp");
#ifdef IFF_DYNAMIC
} else if (matches(*argv, "dynamic") == 0) {
NEXT_ARG();
req.i.ifi_change |= IFF_DYNAMIC;
req->i.ifi_change |= IFF_DYNAMIC;
if (strcmp(*argv, "on") == 0) {
req.i.ifi_flags |= IFF_DYNAMIC;
req->i.ifi_flags |= IFF_DYNAMIC;
} else if (strcmp(*argv, "off") == 0) {
req.i.ifi_flags &= ~IFF_DYNAMIC;
req->i.ifi_flags &= ~IFF_DYNAMIC;
} else
return on_off("dynamic");
#endif
} else if (matches(*argv, "type") == 0) {
NEXT_ARG();
type = *argv;
*type = *argv;
argc--; argv++;
break;
} else {
if (strcmp(*argv, "dev") == 0) {
if (strcmp(*argv, "dev") == 0) {
NEXT_ARG();
}
if (dev)
if (*dev)
duparg2("dev", *argv);
dev = *argv;
*dev = *argv;
}
argc--; argv++;
}
return ret - argc;
}
static int iplink_modify(int cmd, unsigned int flags, int argc, char **argv)
{
int len;
char *dev = NULL;
char *name = NULL;
char *link = NULL;
char *type = NULL;
struct link_util *lu = NULL;
struct iplink_req req;
int ret;
memset(&req, 0, sizeof(req));
req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
req.n.nlmsg_flags = NLM_F_REQUEST|flags;
req.n.nlmsg_type = cmd;
req.i.ifi_family = preferred_family;
ret = iplink_parse(argc, argv, &req, &name, &type, &link, &dev);
if (ret < 0)
return ret;
argc -= ret;
argv += ret;
ll_init_map(&rth);
if (type) {
......
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