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selftests: mptcp: support MPTCP_PM_CMD_SUBFLOW_DESTROY

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This change updates the "pm_nl_ctl" testing sample with a "dsf"
(destroy subflow) option to support the newly added netlink interface
command MPTCP_PM_CMD_SUBFLOW_DESTROY over the chosen MPTCP connection.

E.g. ./pm_nl_ctl dsf lip 10.0.2.1 lport 44567 rip 10.0.2.2 rport 56789
token 823274047

Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Kishen Maloor <kishen.maloor@intel.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Kishen Maloor 2022-05-03 19:38:58 -07:00 committed by David S. Miller
parent cf8d0a6dfd
commit 57cc361b8d
1 changed files with 115 additions and 0 deletions
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115
tools/testing/selftests/net/mptcp/pm_nl_ctl.c
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@ -30,6 +30,7 @@ static void syntax(char *argv[])
fprintf(stderr, "\tann <local-ip> id <local-id> token <token> [port <local-port>] [dev <name>]\n");
fprintf(stderr, "\trem id <local-id> token <token>\n");
fprintf(stderr, "\tcsf lip <local-ip> lid <local-id> rip <remote-ip> rport <remote-port> token <token>\n");
fprintf(stderr, "\tdsf lip <local-ip> lport <local-port> rip <remote-ip> rport <remote-port> token <token>\n");
fprintf(stderr, "\tdel <id> [<ip>]\n");
fprintf(stderr, "\tget <id>\n");
fprintf(stderr, "\tset [<ip>] [id <nr>] flags [no]backup|[no]fullmesh [port <nr>]\n");
@ -174,6 +175,118 @@ static int resolve_mptcp_pm_netlink(int fd)
return genl_parse_getfamily((void *)data);
}
int dsf(int fd, int pm_family, int argc, char *argv[])
{
char data[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
NLMSG_ALIGN(sizeof(struct genlmsghdr)) +
1024];
struct rtattr *rta, *addr;
u_int16_t family, port;
struct nlmsghdr *nh;
u_int32_t token;
int addr_start;
int off = 0;
int arg;
const char *params[5];
memset(params, 0, 5 * sizeof(const char *));
memset(data, 0, sizeof(data));
nh = (void *)data;
off = init_genl_req(data, pm_family, MPTCP_PM_CMD_SUBFLOW_DESTROY,
MPTCP_PM_VER);
if (argc < 12)
syntax(argv);
/* Params recorded in this order:
* <local-ip>, <local-port>, <remote-ip>, <remote-port>, <token>
*/
for (arg = 2; arg < argc; arg++) {
if (!strcmp(argv[arg], "lip")) {
if (++arg >= argc)
error(1, 0, " missing local IP");
params[0] = argv[arg];
} else if (!strcmp(argv[arg], "lport")) {
if (++arg >= argc)
error(1, 0, " missing local port");
params[1] = argv[arg];
} else if (!strcmp(argv[arg], "rip")) {
if (++arg >= argc)
error(1, 0, " missing remote IP");
params[2] = argv[arg];
} else if (!strcmp(argv[arg], "rport")) {
if (++arg >= argc)
error(1, 0, " missing remote port");
params[3] = argv[arg];
} else if (!strcmp(argv[arg], "token")) {
if (++arg >= argc)
error(1, 0, " missing token");
params[4] = argv[arg];
} else
error(1, 0, "unknown keyword %s", argv[arg]);
}
for (arg = 0; arg < 4; arg = arg + 2) {
/* addr header */
addr_start = off;
addr = (void *)(data + off);
addr->rta_type = NLA_F_NESTED |
((arg == 0) ? MPTCP_PM_ATTR_ADDR : MPTCP_PM_ATTR_ADDR_REMOTE);
addr->rta_len = RTA_LENGTH(0);
off += NLMSG_ALIGN(addr->rta_len);
/* addr data */
rta = (void *)(data + off);
if (inet_pton(AF_INET, params[arg], RTA_DATA(rta))) {
family = AF_INET;
rta->rta_type = MPTCP_PM_ADDR_ATTR_ADDR4;
rta->rta_len = RTA_LENGTH(4);
} else if (inet_pton(AF_INET6, params[arg], RTA_DATA(rta))) {
family = AF_INET6;
rta->rta_type = MPTCP_PM_ADDR_ATTR_ADDR6;
rta->rta_len = RTA_LENGTH(16);
} else
error(1, errno, "can't parse ip %s", params[arg]);
off += NLMSG_ALIGN(rta->rta_len);
/* family */
rta = (void *)(data + off);
rta->rta_type = MPTCP_PM_ADDR_ATTR_FAMILY;
rta->rta_len = RTA_LENGTH(2);
memcpy(RTA_DATA(rta), &family, 2);
off += NLMSG_ALIGN(rta->rta_len);
/* port */
port = atoi(params[arg + 1]);
rta = (void *)(data + off);
rta->rta_type = MPTCP_PM_ADDR_ATTR_PORT;
rta->rta_len = RTA_LENGTH(2);
memcpy(RTA_DATA(rta), &port, 2);
off += NLMSG_ALIGN(rta->rta_len);
addr->rta_len = off - addr_start;
}
/* token */
token = atoi(params[4]);
rta = (void *)(data + off);
rta->rta_type = MPTCP_PM_ATTR_TOKEN;
rta->rta_len = RTA_LENGTH(4);
memcpy(RTA_DATA(rta), &token, 4);
off += NLMSG_ALIGN(rta->rta_len);
do_nl_req(fd, nh, off, 0);
return 0;
}
int csf(int fd, int pm_family, int argc, char *argv[])
{
char data[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
@ -1098,6 +1211,8 @@ int main(int argc, char *argv[])
return remove_addr(fd, pm_family, argc, argv);
else if (!strcmp(argv[1], "csf"))
return csf(fd, pm_family, argc, argv);
else if (!strcmp(argv[1], "dsf"))
return dsf(fd, pm_family, argc, argv);
else if (!strcmp(argv[1], "del"))
return del_addr(fd, pm_family, argc, argv);
else if (!strcmp(argv[1], "flush"))