Commit 4f2fdd44 authored by Stephen Hemminger's avatar Stephen Hemminger

Add ability to set link state with ip

Exposes existing netlink operations to modify link state of devices.
parent ae5555d3
extern int get_operstate(const char *name);
extern int print_linkinfo(const struct sockaddr_nl *who,
struct nlmsghdr *n,
void *arg);
......
......@@ -131,6 +131,16 @@ static void print_operstate(FILE *f, __u8 state)
fprintf(f, "state %s ", oper_states[state]);
}
int get_operstate(const char *name)
{
int i;
for (i = 0; i < sizeof(oper_states)/sizeof(oper_states[0]); i++)
if (strcasecmp(name, oper_states[i]) == 0)
return i;
return -1;
}
static void print_queuelen(FILE *f, struct rtattr *tb[IFLA_MAX + 1])
{
int qlen;
......
......@@ -437,6 +437,14 @@ int iplink_parse(int argc, char **argv, struct iplink_req *req,
if (mode < 0)
invarg("Invalid link mode\n", *argv);
addattr8(&req->n, sizeof(*req), IFLA_LINKMODE, mode);
} else if (strcmp(*argv, "state") == 0) {
int state;
NEXT_ARG();
state = get_operstate(*argv);
if (state < 0)
invarg("Invalid operstate\n", *argv);
addattr8(&req->n, sizeof(*req), IFLA_OPERSTATE, state);
} else {
if (strcmp(*argv, "dev") == 0) {
NEXT_ARG();
......
......@@ -103,6 +103,9 @@ ip-link \- network device configuration
.B mode
.IR LINKMODE " |"
.br
.B state
.IR LINKSTATE " |"
.br
.B master
.IR DEVICE
.br
......@@ -259,6 +262,10 @@ the device will transistion to when it is brought up. Setting
mode changes the behaviour so that device goes into DORMANT state instead
of UP when driver is ready.
.TP
.BI state " LINKSTATE"
allows setting the operational link state. The values (defined in RFC2863)
are: UP, DOWN, TESTING, UNKNOWN, DORMANT, NOTPRESENT, LOWERLAYERDOWN.
.TP
.BI alias " NAME"
give the device a symbolic name for easy reference.
......
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