static int xfrm_state_extra_flag_parse(__u32 *extra_flags, int *argcp, char ***argvp)
{
int argc = *argcp;
char **argv = *argvp;
int len = strlen(*argv);
if (len > 2 && strncmp(*argv, "0x", 2) == 0) {
__u32 val = 0;
if (get_u32(&val, *argv, 16))
invarg("\"EXTRA-FLAG\" is invalid", *argv);
*extra_flags = val;
} else {
while (1) {
if (strcmp(*argv, "dont-encap-dscp") == 0)
*extra_flags |= XFRM_SA_XFLAG_DONT_ENCAP_DSCP;
else {
PREV_ARG(); /* back track */
break;
}
if (!NEXT_ARG_OK())
break;
NEXT_ARG();
}
}
*argcp = argc;
*argvp = argv;
return 0;
}
static int xfrm_policy_flag_parse(__u8 *flags, int *argcp, char ***argvp)
{
int argc = *argcp;
char **argv = *argvp;
int len = strlen(*argv);
if (len > 2 && strncmp(*argv, "0x", 2) == 0) {
__u8 val = 0;
if (get_u8(&val, *argv, 16))
invarg("\"FLAG\" is invalid", *argv);
*flags = val;
} else {
while (1) {
if (strcmp(*argv, "localok") == 0)
*flags |= XFRM_POLICY_LOCALOK;
else {
PREV_ARG(); /* back track */
break;
}
if (!NEXT_ARG_OK())
break;
NEXT_ARG();
}
}
*argcp = argc;
*argvp = argv;
return 0;
}
static int xfrm_tmpl_parse(struct xfrm_user_tmpl *tmpl,
int *argcp, char ***argvp)
{
int argc = *argcp;
char **argv = *argvp;
char *idp = NULL;
while (1) {
if (strcmp(*argv, "mode") == 0) {
NEXT_ARG();
xfrm_mode_parse(&tmpl->mode, &argc, &argv);
} else if (strcmp(*argv, "reqid") == 0) {
NEXT_ARG();
xfrm_reqid_parse(&tmpl->reqid, &argc, &argv);
} else if (strcmp(*argv, "level") == 0) {
NEXT_ARG();
if (strcmp(*argv, "required") == 0)
tmpl->optional = 0;
else if (strcmp(*argv, "use") == 0)
tmpl->optional = 1;
else
invarg("\"LEVEL\" is invalid\n", *argv);
} else {
if (idp) {
PREV_ARG(); /* back track */
break;
}
idp = *argv;
xfrm_id_parse(&tmpl->saddr, &tmpl->id, &tmpl->family,
0, &argc, &argv);
if (preferred_family == AF_UNSPEC)
preferred_family = tmpl->family;
}
if (!NEXT_ARG_OK())
break;
NEXT_ARG();
}
if (argc == *argcp)
missarg("TMPL");
*argcp = argc;
*argvp = argv;
return 0;
}
static int xfrm_state_flag_parse(__u8 *flags, int *argcp, char ***argvp)
{
int argc = *argcp;
char **argv = *argvp;
int len = strlen(*argv);
if (len > 2 && strncmp(*argv, "0x", 2) == 0) {
__u8 val = 0;
if (get_u8(&val, *argv, 16))
invarg("FLAG value is invalid", *argv);
*flags = val;
} else {
while (1) {
if (strcmp(*argv, "noecn") == 0)
*flags |= XFRM_STATE_NOECN;
else if (strcmp(*argv, "decap-dscp") == 0)
*flags |= XFRM_STATE_DECAP_DSCP;
else if (strcmp(*argv, "nopmtudisc") == 0)
*flags |= XFRM_STATE_NOPMTUDISC;
else if (strcmp(*argv, "wildrecv") == 0)
*flags |= XFRM_STATE_WILDRECV;
else if (strcmp(*argv, "icmp") == 0)
*flags |= XFRM_STATE_ICMP;
else if (strcmp(*argv, "af-unspec") == 0)
*flags |= XFRM_STATE_AF_UNSPEC;
else if (strcmp(*argv, "align4") == 0)
*flags |= XFRM_STATE_ALIGN4;
else if (strcmp(*argv, "esn") == 0)
*flags |= XFRM_STATE_ESN;
else {
PREV_ARG(); /* back track */
break;
}
if (!NEXT_ARG_OK())
break;
NEXT_ARG();
}
}
*argcp = argc;
*argvp = argv;
return 0;
}
static int xfrm_state_flag_parse(__u8 *flags, int *argcp, char ***argvp)
{
int argc = *argcp;
char **argv = *argvp;
int len = strlen(*argv);
if (len > 2 && strncmp(*argv, "0x", 2) == 0) {
__u8 val = 0;
if (get_u8(&val, *argv, 16))
invarg("\"FLAG\" is invalid", *argv);
*flags = val;
} else {
while (1) {
if (strcmp(*argv, "noecn") == 0)
*flags |= XFRM_STATE_NOECN;
else if (strcmp(*argv, "decap-dscp") == 0)
*flags |= XFRM_STATE_DECAP_DSCP;
else if (strcmp(*argv, "wildrecv") == 0)
*flags |= XFRM_STATE_WILDRECV;
else {
PREV_ARG(); /* back track */
break;
}
if (!NEXT_ARG_OK())
break;
NEXT_ARG();
}
}
filter.state_flags_mask = XFRM_FILTER_MASK_FULL;
*argcp = argc;
*argvp = argv;
return 0;
}
static int bond_parse_opt(struct link_util *lu, int argc, char **argv,
struct nlmsghdr *n)
{
__u8 mode, use_carrier, primary_reselect, fail_over_mac;
__u8 xmit_hash_policy, num_peer_notif, all_slaves_active;
__u8 lacp_rate, ad_select, tlb_dynamic_lb;
__u16 ad_user_port_key, ad_actor_sys_prio;
__u32 miimon, updelay, downdelay, arp_interval, arp_validate;
__u32 arp_all_targets, resend_igmp, min_links, lp_interval;
__u32 packets_per_slave;
unsigned ifindex;
while (argc > 0) {
if (matches(*argv, "mode") == 0) {
NEXT_ARG();
if (get_index(mode_tbl, *argv) < 0)
invarg("invalid mode", *argv);
mode = get_index(mode_tbl, *argv);
addattr8(n, 1024, IFLA_BOND_MODE, mode);
} else if (matches(*argv, "active_slave") == 0) {
NEXT_ARG();
ifindex = if_nametoindex(*argv);
if (!ifindex)
return -1;
addattr32(n, 1024, IFLA_BOND_ACTIVE_SLAVE, ifindex);
} else if (matches(*argv, "clear_active_slave") == 0) {
addattr32(n, 1024, IFLA_BOND_ACTIVE_SLAVE, 0);
} else if (matches(*argv, "miimon") == 0) {
NEXT_ARG();
if (get_u32(&miimon, *argv, 0))
invarg("invalid miimon", *argv);
addattr32(n, 1024, IFLA_BOND_MIIMON, miimon);
} else if (matches(*argv, "updelay") == 0) {
NEXT_ARG();
if (get_u32(&updelay, *argv, 0))
invarg("invalid updelay", *argv);
addattr32(n, 1024, IFLA_BOND_UPDELAY, updelay);
} else if (matches(*argv, "downdelay") == 0) {
NEXT_ARG();
if (get_u32(&downdelay, *argv, 0))
invarg("invalid downdelay", *argv);
addattr32(n, 1024, IFLA_BOND_DOWNDELAY, downdelay);
} else if (matches(*argv, "use_carrier") == 0) {
NEXT_ARG();
if (get_u8(&use_carrier, *argv, 0))
invarg("invalid use_carrier", *argv);
addattr8(n, 1024, IFLA_BOND_USE_CARRIER, use_carrier);
} else if (matches(*argv, "arp_interval") == 0) {
NEXT_ARG();
if (get_u32(&arp_interval, *argv, 0))
invarg("invalid arp_interval", *argv);
addattr32(n, 1024, IFLA_BOND_ARP_INTERVAL, arp_interval);
} else if (matches(*argv, "arp_ip_target") == 0) {
struct rtattr * nest = addattr_nest(n, 1024,
IFLA_BOND_ARP_IP_TARGET);
if (NEXT_ARG_OK()) {
NEXT_ARG();
char *targets = strdupa(*argv);
char *target = strtok(targets, ",");
int i;
for(i = 0; target && i < BOND_MAX_ARP_TARGETS; i++) {
__u32 addr = get_addr32(target);
addattr32(n, 1024, i, addr);
target = strtok(NULL, ",");
}
addattr_nest_end(n, nest);
}
addattr_nest_end(n, nest);
} else if (matches(*argv, "arp_validate") == 0) {
NEXT_ARG();
if (get_index(arp_validate_tbl, *argv) < 0)
invarg("invalid arp_validate", *argv);
arp_validate = get_index(arp_validate_tbl, *argv);
addattr32(n, 1024, IFLA_BOND_ARP_VALIDATE, arp_validate);
} else if (matches(*argv, "arp_all_targets") == 0) {
NEXT_ARG();
if (get_index(arp_all_targets_tbl, *argv) < 0)
invarg("invalid arp_all_targets", *argv);
arp_all_targets = get_index(arp_all_targets_tbl, *argv);
addattr32(n, 1024, IFLA_BOND_ARP_ALL_TARGETS, arp_all_targets);
} else if (matches(*argv, "primary") == 0) {
NEXT_ARG();
ifindex = if_nametoindex(*argv);
if (!ifindex)
return -1;
addattr32(n, 1024, IFLA_BOND_PRIMARY, ifindex);
} else if (matches(*argv, "primary_reselect") == 0) {
NEXT_ARG();
if (get_index(primary_reselect_tbl, *argv) < 0)
invarg("invalid primary_reselect", *argv);
primary_reselect = get_index(primary_reselect_tbl, *argv);
addattr8(n, 1024, IFLA_BOND_PRIMARY_RESELECT,
primary_reselect);
} else if (matches(*argv, "fail_over_mac") == 0) {
NEXT_ARG();
if (get_index(fail_over_mac_tbl, *argv) < 0)
invarg("invalid fail_over_mac", *argv);
fail_over_mac = get_index(fail_over_mac_tbl, *argv);
addattr8(n, 1024, IFLA_BOND_FAIL_OVER_MAC,
fail_over_mac);
} else if (matches(*argv, "xmit_hash_policy") == 0) {
NEXT_ARG();
if (get_index(xmit_hash_policy_tbl, *argv) < 0)
invarg("invalid xmit_hash_policy", *argv);
xmit_hash_policy = get_index(xmit_hash_policy_tbl, *argv);
addattr8(n, 1024, IFLA_BOND_XMIT_HASH_POLICY,
xmit_hash_policy);
} else if (matches(*argv, "resend_igmp") == 0) {
NEXT_ARG();
if (get_u32(&resend_igmp, *argv, 0))
invarg("invalid resend_igmp", *argv);
addattr32(n, 1024, IFLA_BOND_RESEND_IGMP, resend_igmp);
} else if (matches(*argv, "num_grat_arp") == 0 ||
matches(*argv, "num_unsol_na") == 0) {
NEXT_ARG();
if (get_u8(&num_peer_notif, *argv, 0))
invarg("invalid num_grat_arp|num_unsol_na",
*argv);
addattr8(n, 1024, IFLA_BOND_NUM_PEER_NOTIF,
num_peer_notif);
} else if (matches(*argv, "all_slaves_active") == 0) {
NEXT_ARG();
if (get_u8(&all_slaves_active, *argv, 0))
invarg("invalid all_slaves_active", *argv);
addattr8(n, 1024, IFLA_BOND_ALL_SLAVES_ACTIVE,
all_slaves_active);
} else if (matches(*argv, "min_links") == 0) {
NEXT_ARG();
if (get_u32(&min_links, *argv, 0))
invarg("invalid min_links", *argv);
addattr32(n, 1024, IFLA_BOND_MIN_LINKS, min_links);
} else if (matches(*argv, "lp_interval") == 0) {
NEXT_ARG();
if (get_u32(&lp_interval, *argv, 0))
invarg("invalid lp_interval", *argv);
addattr32(n, 1024, IFLA_BOND_LP_INTERVAL, lp_interval);
} else if (matches(*argv, "packets_per_slave") == 0) {
NEXT_ARG();
if (get_u32(&packets_per_slave, *argv, 0))
invarg("invalid packets_per_slave", *argv);
addattr32(n, 1024, IFLA_BOND_PACKETS_PER_SLAVE,
packets_per_slave);
} else if (matches(*argv, "lacp_rate") == 0) {
NEXT_ARG();
if (get_index(lacp_rate_tbl, *argv) < 0)
invarg("invalid lacp_rate", *argv);
lacp_rate = get_index(lacp_rate_tbl, *argv);
addattr8(n, 1024, IFLA_BOND_AD_LACP_RATE, lacp_rate);
} else if (matches(*argv, "ad_select") == 0) {
NEXT_ARG();
if (get_index(ad_select_tbl, *argv) < 0)
invarg("invalid ad_select", *argv);
ad_select = get_index(ad_select_tbl, *argv);
addattr8(n, 1024, IFLA_BOND_AD_SELECT, ad_select);
} else if (matches(*argv, "ad_user_port_key") == 0) {
NEXT_ARG();
if (get_u16(&ad_user_port_key, *argv, 0))
invarg("invalid ad_user_port_key", *argv);
addattr16(n, 1024, IFLA_BOND_AD_USER_PORT_KEY,
ad_user_port_key);
} else if (matches(*argv, "ad_actor_sys_prio") == 0) {
NEXT_ARG();
if (get_u16(&ad_actor_sys_prio, *argv, 0))
invarg("invalid ad_actor_sys_prio", *argv);
addattr16(n, 1024, IFLA_BOND_AD_ACTOR_SYS_PRIO,
ad_actor_sys_prio);
} else if (matches(*argv, "ad_actor_system") == 0) {
int len;
char abuf[32];
NEXT_ARG();
len = ll_addr_a2n(abuf, sizeof(abuf), *argv);
if (len < 0)
return -1;
addattr_l(n, 1024, IFLA_BOND_AD_ACTOR_SYSTEM,
abuf, len);
} else if (matches(*argv, "tlb_dynamic_lb") == 0) {
NEXT_ARG();
if (get_u8(&tlb_dynamic_lb, *argv, 0)) {
invarg("invalid tlb_dynamic_lb", *argv);
return -1;
}
addattr8(n, 1024, IFLA_BOND_TLB_DYNAMIC_LB,
tlb_dynamic_lb);
} else if (matches(*argv, "help") == 0) {
explain();
return -1;
} else {
fprintf(stderr, "bond: unknown command \"%s\"?\n", *argv);
explain();
return -1;
}
argc--, argv++;
}
return 0;
}
static int xfrm_state_modify(int cmd, unsigned flags, int argc, char **argv)
{
struct rtnl_handle rth;
struct {
struct nlmsghdr n;
struct xfrm_usersa_info xsinfo;
char buf[RTA_BUF_SIZE];
} req;
struct xfrm_replay_state replay;
char *idp = NULL;
char *aeadop = NULL;
char *ealgop = NULL;
char *aalgop = NULL;
char *calgop = NULL;
char *coap = NULL;
char *sctxp = NULL;
struct xfrm_mark mark = {0, 0};
struct {
struct xfrm_user_sec_ctx sctx;
char str[CTX_BUF_SIZE];
} ctx;
memset(&req, 0, sizeof(req));
memset(&replay, 0, sizeof(replay));
memset(&ctx, 0, sizeof(ctx));
req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsinfo));
req.n.nlmsg_flags = NLM_F_REQUEST|flags;
req.n.nlmsg_type = cmd;
req.xsinfo.family = preferred_family;
req.xsinfo.lft.soft_byte_limit = XFRM_INF;
req.xsinfo.lft.hard_byte_limit = XFRM_INF;
req.xsinfo.lft.soft_packet_limit = XFRM_INF;
req.xsinfo.lft.hard_packet_limit = XFRM_INF;
while (argc > 0) {
if (strcmp(*argv, "mode") == 0) {
NEXT_ARG();
xfrm_mode_parse(&req.xsinfo.mode, &argc, &argv);
} else if (strcmp(*argv, "mark") == 0) {
xfrm_parse_mark(&mark, &argc, &argv);
} else if (strcmp(*argv, "reqid") == 0) {
NEXT_ARG();
xfrm_reqid_parse(&req.xsinfo.reqid, &argc, &argv);
} else if (strcmp(*argv, "seq") == 0) {
NEXT_ARG();
xfrm_seq_parse(&req.xsinfo.seq, &argc, &argv);
} else if (strcmp(*argv, "replay-window") == 0) {
NEXT_ARG();
if (get_u8(&req.xsinfo.replay_window, *argv, 0))
invarg("\"replay-window\" value is invalid", *argv);
} else if (strcmp(*argv, "replay-seq") == 0) {
NEXT_ARG();
if (get_u32(&replay.seq, *argv, 0))
invarg("\"replay-seq\" value is invalid", *argv);
} else if (strcmp(*argv, "replay-oseq") == 0) {
NEXT_ARG();
if (get_u32(&replay.oseq, *argv, 0))
invarg("\"replay-oseq\" value is invalid", *argv);
} else if (strcmp(*argv, "flag") == 0) {
NEXT_ARG();
xfrm_state_flag_parse(&req.xsinfo.flags, &argc, &argv);
} else if (strcmp(*argv, "sel") == 0) {
NEXT_ARG();
xfrm_selector_parse(&req.xsinfo.sel, &argc, &argv);
} else if (strcmp(*argv, "limit") == 0) {
NEXT_ARG();
xfrm_lifetime_cfg_parse(&req.xsinfo.lft, &argc, &argv);
} else if (strcmp(*argv, "encap") == 0) {
struct xfrm_encap_tmpl encap;
inet_prefix oa;
NEXT_ARG();
xfrm_encap_type_parse(&encap.encap_type, &argc, &argv);
NEXT_ARG();
if (get_u16(&encap.encap_sport, *argv, 0))
invarg("\"encap\" sport value is invalid", *argv);
encap.encap_sport = htons(encap.encap_sport);
NEXT_ARG();
if (get_u16(&encap.encap_dport, *argv, 0))
invarg("\"encap\" dport value is invalid", *argv);
encap.encap_dport = htons(encap.encap_dport);
NEXT_ARG();
get_addr(&oa, *argv, AF_UNSPEC);
memcpy(&encap.encap_oa, &oa.data, sizeof(encap.encap_oa));
addattr_l(&req.n, sizeof(req.buf), XFRMA_ENCAP,
(void *)&encap, sizeof(encap));
} else if (strcmp(*argv, "coa") == 0) {
inet_prefix coa;
xfrm_address_t xcoa;
if (coap)
duparg("coa", *argv);
coap = *argv;
NEXT_ARG();
get_prefix(&coa, *argv, preferred_family);
if (coa.family == AF_UNSPEC)
invarg("\"coa\" address family is AF_UNSPEC", *argv);
if (coa.bytelen > sizeof(xcoa))
invarg("\"coa\" address length is too large", *argv);
memset(&xcoa, 0, sizeof(xcoa));
memcpy(&xcoa, &coa.data, coa.bytelen);
addattr_l(&req.n, sizeof(req.buf), XFRMA_COADDR,
(void *)&xcoa, sizeof(xcoa));
} else if (strcmp(*argv, "ctx") == 0) {
char *context;
if (sctxp)
duparg("ctx", *argv);
sctxp = *argv;
NEXT_ARG();
context = *argv;
xfrm_sctx_parse((char *)&ctx.str, context, &ctx.sctx);
addattr_l(&req.n, sizeof(req.buf), XFRMA_SEC_CTX,
(void *)&ctx, ctx.sctx.len);
} else {
/* try to assume ALGO */
int type = xfrm_algotype_getbyname(*argv);
switch (type) {
case XFRMA_ALG_AEAD:
case XFRMA_ALG_CRYPT:
case XFRMA_ALG_AUTH:
case XFRMA_ALG_AUTH_TRUNC:
case XFRMA_ALG_COMP:
{
/* ALGO */
struct {
union {
struct xfrm_algo alg;
struct xfrm_algo_aead aead;
struct xfrm_algo_auth auth;
} u;
char buf[XFRM_ALGO_KEY_BUF_SIZE];
} alg = {};
int len;
__u32 icvlen, trunclen;
char *name;
char *key;
char *buf;
switch (type) {
case XFRMA_ALG_AEAD:
if (aeadop)
duparg("ALGO-TYPE", *argv);
aeadop = *argv;
break;
case XFRMA_ALG_CRYPT:
if (ealgop)
duparg("ALGO-TYPE", *argv);
ealgop = *argv;
break;
case XFRMA_ALG_AUTH:
case XFRMA_ALG_AUTH_TRUNC:
if (aalgop)
duparg("ALGO-TYPE", *argv);
aalgop = *argv;
break;
case XFRMA_ALG_COMP:
if (calgop)
duparg("ALGO-TYPE", *argv);
calgop = *argv;
break;
default:
/* not reached */
invarg("\"ALGO-TYPE\" is invalid\n", *argv);
}
if (!NEXT_ARG_OK())
missarg("ALGO-NAME");
NEXT_ARG();
name = *argv;
if (!NEXT_ARG_OK())
missarg("ALGO-KEY");
NEXT_ARG();
key = *argv;
buf = alg.u.alg.alg_key;
len = sizeof(alg.u.alg);
switch (type) {
case XFRMA_ALG_AEAD:
if (!NEXT_ARG_OK())
missarg("ALGO-ICV-LEN");
NEXT_ARG();
if (get_u32(&icvlen, *argv, 0))
invarg("\"aead\" ICV length is invalid",
*argv);
alg.u.aead.alg_icv_len = icvlen;
buf = alg.u.aead.alg_key;
len = sizeof(alg.u.aead);
break;
case XFRMA_ALG_AUTH_TRUNC:
if (!NEXT_ARG_OK())
missarg("ALGO-TRUNC-LEN");
NEXT_ARG();
if (get_u32(&trunclen, *argv, 0))
invarg("\"auth\" trunc length is invalid",
*argv);
alg.u.auth.alg_trunc_len = trunclen;
buf = alg.u.auth.alg_key;
len = sizeof(alg.u.auth);
break;
}
xfrm_algo_parse((void *)&alg, type, name, key,
buf, sizeof(alg.buf));
len += alg.u.alg.alg_key_len;
addattr_l(&req.n, sizeof(req.buf), type,
(void *)&alg, len);
break;
}
default:
/* try to assume ID */
if (idp)
invarg("unknown", *argv);
idp = *argv;
/* ID */
xfrm_id_parse(&req.xsinfo.saddr, &req.xsinfo.id,
&req.xsinfo.family, 0, &argc, &argv);
if (preferred_family == AF_UNSPEC)
preferred_family = req.xsinfo.family;
}
}
argc--; argv++;
}
if (replay.seq || replay.oseq)
addattr_l(&req.n, sizeof(req.buf), XFRMA_REPLAY_VAL,
(void *)&replay, sizeof(replay));
if (!idp) {
fprintf(stderr, "Not enough information: \"ID\" is required\n");
exit(1);
}
if (mark.m & mark.v) {
int r = addattr_l(&req.n, sizeof(req.buf), XFRMA_MARK,
(void *)&mark, sizeof(mark));
if (r < 0) {
fprintf(stderr, "XFRMA_MARK failed\n");
exit(1);
}
}
switch (req.xsinfo.mode) {
case XFRM_MODE_TRANSPORT:
case XFRM_MODE_TUNNEL:
if (!xfrm_xfrmproto_is_ipsec(req.xsinfo.id.proto)) {
fprintf(stderr, "\"mode\" is invalid with proto=%s\n",
strxf_xfrmproto(req.xsinfo.id.proto));
exit(1);
}
break;
case XFRM_MODE_ROUTEOPTIMIZATION:
case XFRM_MODE_IN_TRIGGER:
if (!xfrm_xfrmproto_is_ro(req.xsinfo.id.proto)) {
fprintf(stderr, "\"mode\" is invalid with proto=%s\n",
strxf_xfrmproto(req.xsinfo.id.proto));
exit(1);
}
if (req.xsinfo.id.spi != 0) {
fprintf(stderr, "\"spi\" must be 0 with proto=%s\n",
strxf_xfrmproto(req.xsinfo.id.proto));
exit(1);
}
break;
default:
break;
}
if (aeadop || ealgop || aalgop || calgop) {
if (!xfrm_xfrmproto_is_ipsec(req.xsinfo.id.proto)) {
fprintf(stderr, "\"ALGO\" is invalid with proto=%s\n",
strxf_xfrmproto(req.xsinfo.id.proto));
exit(1);
}
} else {
if (xfrm_xfrmproto_is_ipsec(req.xsinfo.id.proto)) {
fprintf(stderr, "\"ALGO\" is required with proto=%s\n",
strxf_xfrmproto(req.xsinfo.id.proto));
exit (1);
}
}
if (coap) {
if (!xfrm_xfrmproto_is_ro(req.xsinfo.id.proto)) {
fprintf(stderr, "\"coa\" is invalid with proto=%s\n",
strxf_xfrmproto(req.xsinfo.id.proto));
exit(1);
}
} else {
if (xfrm_xfrmproto_is_ro(req.xsinfo.id.proto)) {
fprintf(stderr, "\"coa\" is required with proto=%s\n",
strxf_xfrmproto(req.xsinfo.id.proto));
exit (1);
}
}
if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
exit(1);
if (req.xsinfo.family == AF_UNSPEC)
req.xsinfo.family = AF_INET;
if (rtnl_talk(&rth, &req.n, 0, 0, NULL) < 0)
exit(2);
rtnl_close(&rth);
return 0;
}
int xfrm_id_parse(xfrm_address_t *saddr, struct xfrm_id *id, __u16 *family,
int loose, int *argcp, char ***argvp)
{
int argc = *argcp;
char **argv = *argvp;
inet_prefix dst;
inet_prefix src;
memset(&dst, 0, sizeof(dst));
memset(&src, 0, sizeof(src));
while (1) {
if (strcmp(*argv, "src") == 0) {
NEXT_ARG();
get_prefix(&src, *argv, preferred_family);
if (src.family == AF_UNSPEC)
invarg("\"src\" address family is AF_UNSPEC", *argv);
if (family)
*family = src.family;
memcpy(saddr, &src.data, sizeof(*saddr));
filter.id_src_mask = src.bitlen;
} else if (strcmp(*argv, "dst") == 0) {
NEXT_ARG();
get_prefix(&dst, *argv, preferred_family);
if (dst.family == AF_UNSPEC)
invarg("\"dst\" address family is AF_UNSPEC", *argv);
if (family)
*family = dst.family;
memcpy(&id->daddr, &dst.data, sizeof(id->daddr));
filter.id_dst_mask = dst.bitlen;
} else if (strcmp(*argv, "proto") == 0) {
int ret;
NEXT_ARG();
ret = xfrm_xfrmproto_getbyname(*argv);
if (ret < 0)
invarg("\"XFRM_PROTO\" is invalid", *argv);
id->proto = (__u8)ret;
filter.id_proto_mask = XFRM_FILTER_MASK_FULL;
} else if (strcmp(*argv, "spi") == 0) {
__u32 spi;
NEXT_ARG();
if (get_u32(&spi, *argv, 0))
invarg("\"SPI\" is invalid", *argv);
spi = htonl(spi);
id->spi = spi;
filter.id_spi_mask = XFRM_FILTER_MASK_FULL;
} else {
PREV_ARG(); /* back track */
break;
}
if (!NEXT_ARG_OK())
break;
NEXT_ARG();
}
if (src.family && dst.family && (src.family != dst.family))
invarg("the same address family is required between \"src\" and \"dst\"", *argv);
if (loose == 0 && id->proto == 0)
missarg("XFRM_PROTO");
if (argc == *argcp)
missarg("ID");
*argcp = argc;
*argvp = argv;
return 0;
}
int xfrm_selector_parse(struct xfrm_selector *sel, int *argcp, char ***argvp)
{
int argc = *argcp;
char **argv = *argvp;
inet_prefix dst;
inet_prefix src;
char *upspecp = NULL;
memset(&dst, 0, sizeof(dst));
memset(&src, 0, sizeof(src));
while (1) {
if (strcmp(*argv, "src") == 0) {
NEXT_ARG();
get_prefix(&src, *argv, preferred_family);
if (src.family == AF_UNSPEC)
invarg("\"src\" address family is AF_UNSPEC", *argv);
sel->family = src.family;
memcpy(&sel->saddr, &src.data, sizeof(sel->saddr));
sel->prefixlen_s = src.bitlen;
filter.sel_src_mask = src.bitlen;
} else if (strcmp(*argv, "dst") == 0) {
NEXT_ARG();
get_prefix(&dst, *argv, preferred_family);
if (dst.family == AF_UNSPEC)
invarg("\"dst\" address family is AF_UNSPEC", *argv);
sel->family = dst.family;
memcpy(&sel->daddr, &dst.data, sizeof(sel->daddr));
sel->prefixlen_d = dst.bitlen;
filter.sel_dst_mask = dst.bitlen;
} else if (strcmp(*argv, "dev") == 0) {
int ifindex;
NEXT_ARG();
if (strcmp(*argv, "none") == 0)
ifindex = 0;
else {
ifindex = ll_name_to_index(*argv);
if (ifindex <= 0)
invarg("\"DEV\" is invalid", *argv);
}
sel->ifindex = ifindex;
filter.sel_dev_mask = XFRM_FILTER_MASK_FULL;
} else {
if (upspecp) {
PREV_ARG(); /* back track */
break;
} else {
upspecp = *argv;
xfrm_selector_upspec_parse(sel, &argc, &argv);
}
}
if (!NEXT_ARG_OK())
break;
NEXT_ARG();
}
if (src.family && dst.family && (src.family != dst.family))
invarg("the same address family is required between \"src\" and \"dst\"", *argv);
if (argc == *argcp)
missarg("SELECTOR");
*argcp = argc;
*argvp = argv;
return 0;
}
static int xfrm_selector_upspec_parse(struct xfrm_selector *sel,
int *argcp, char ***argvp)
{
int argc = *argcp;
char **argv = *argvp;
char *sportp = NULL;
char *dportp = NULL;
char *typep = NULL;
char *codep = NULL;
while (1) {
if (strcmp(*argv, "proto") == 0) {
__u8 upspec;
NEXT_ARG();
if (strcmp(*argv, "any") == 0)
upspec = 0;
else {
struct protoent *pp;
pp = getprotobyname(*argv);
if (pp)
upspec = pp->p_proto;
else {
if (get_u8(&upspec, *argv, 0))
invarg("\"PROTO\" is invalid", *argv);
}
}
sel->proto = upspec;
filter.upspec_proto_mask = XFRM_FILTER_MASK_FULL;
} else if (strcmp(*argv, "sport") == 0) {
sportp = *argv;
NEXT_ARG();
if (get_u16(&sel->sport, *argv, 0))
invarg("\"PORT\" is invalid", *argv);
sel->sport = htons(sel->sport);
if (sel->sport)
sel->sport_mask = ~((__u16)0);
filter.upspec_sport_mask = XFRM_FILTER_MASK_FULL;
} else if (strcmp(*argv, "dport") == 0) {
dportp = *argv;
NEXT_ARG();
if (get_u16(&sel->dport, *argv, 0))
invarg("\"PORT\" is invalid", *argv);
sel->dport = htons(sel->dport);
if (sel->dport)
sel->dport_mask = ~((__u16)0);
filter.upspec_dport_mask = XFRM_FILTER_MASK_FULL;
} else if (strcmp(*argv, "type") == 0) {
typep = *argv;
NEXT_ARG();
if (get_u16(&sel->sport, *argv, 0) ||
(sel->sport & ~((__u16)0xff)))
invarg("\"type\" value is invalid", *argv);
sel->sport = htons(sel->sport);
sel->sport_mask = ~((__u16)0);
filter.upspec_sport_mask = XFRM_FILTER_MASK_FULL;
} else if (strcmp(*argv, "code") == 0) {
codep = *argv;
NEXT_ARG();
if (get_u16(&sel->dport, *argv, 0) ||
(sel->dport & ~((__u16)0xff)))
invarg("\"code\" value is invalid", *argv);
sel->dport = htons(sel->dport);
sel->dport_mask = ~((__u16)0);
filter.upspec_dport_mask = XFRM_FILTER_MASK_FULL;
} else {
PREV_ARG(); /* back track */
break;
}
if (!NEXT_ARG_OK())
break;
NEXT_ARG();
}
if (argc == *argcp)
missarg("UPSPEC");
if (sportp || dportp) {
switch (sel->proto) {
case IPPROTO_TCP:
case IPPROTO_UDP:
case IPPROTO_SCTP:
case IPPROTO_DCCP:
break;
default:
fprintf(stderr, "\"sport\" and \"dport\" are invalid with proto=%s\n", strxf_proto(sel->proto));
exit(1);
}
}
if (typep || codep) {
switch (sel->proto) {
case IPPROTO_ICMP:
case IPPROTO_ICMPV6:
case IPPROTO_MH:
break;
default:
fprintf(stderr, "\"type\" and \"code\" are invalid with proto=%s\n", strxf_proto(sel->proto));
exit(1);
}
}
*argcp = argc;
*argvp = argv;
return 0;
}
int xfrm_id_parse(xfrm_address_t *saddr, struct xfrm_id *id, __u16 *family,
int loose, int *argcp, char ***argvp)
{
int argc = *argcp;
char **argv = *argvp;
inet_prefix dst;
inet_prefix src;
memset(&dst, 0, sizeof(dst));
memset(&src, 0, sizeof(src));
while (1) {
if (strcmp(*argv, "src") == 0) {
NEXT_ARG();
get_prefix(&src, *argv, preferred_family);
if (src.family == AF_UNSPEC)
invarg("value after \"src\" has an unrecognized address family", *argv);
if (family)
*family = src.family;
memcpy(saddr, &src.data, sizeof(*saddr));
filter.id_src_mask = src.bitlen;
} else if (strcmp(*argv, "dst") == 0) {
NEXT_ARG();
get_prefix(&dst, *argv, preferred_family);
if (dst.family == AF_UNSPEC)
invarg("value after \"dst\" has an unrecognized address family", *argv);
if (family)
*family = dst.family;
memcpy(&id->daddr, &dst.data, sizeof(id->daddr));
filter.id_dst_mask = dst.bitlen;
} else if (strcmp(*argv, "proto") == 0) {
int ret;
NEXT_ARG();
ret = xfrm_xfrmproto_getbyname(*argv);
if (ret < 0)
invarg("XFRM-PROTO value is invalid", *argv);
id->proto = (__u8)ret;
filter.id_proto_mask = XFRM_FILTER_MASK_FULL;
} else if (strcmp(*argv, "spi") == 0) {
__u32 spi;
NEXT_ARG();
if (get_u32(&spi, *argv, 0))
invarg("SPI value is invalid", *argv);
spi = htonl(spi);
id->spi = spi;
filter.id_spi_mask = XFRM_FILTER_MASK_FULL;
} else {
PREV_ARG(); /* back track */
break;
}
if (!NEXT_ARG_OK())
break;
NEXT_ARG();
}
if (src.family && dst.family && (src.family != dst.family))
invarg("the same address family is required between values after \"src\" and \"dst\"", *argv);
if (id->spi && id->proto) {
if (xfrm_xfrmproto_is_ro(id->proto)) {
fprintf(stderr, "\"spi\" is invalid with XFRM-PROTO value \"%s\"\n",
strxf_xfrmproto(id->proto));
exit(1);
} else if (id->proto == IPPROTO_COMP && ntohl(id->spi) >= 0x10000) {
fprintf(stderr, "SPI value is too large with XFRM-PROTO value \"%s\"\n",
strxf_xfrmproto(id->proto));
exit(1);
}
}
if (loose == 0 && id->proto == 0)
missarg("XFRM-PROTO");
if (argc == *argcp)
missarg("ID");
*argcp = argc;
*argvp = argv;
return 0;
}
static int iplink_parse_vf(int vf, int *argcp, char ***argvp,
struct iplink_req *req, int dev_index)
{
char new_rate_api = 0, count = 0, override_legacy_rate = 0;
struct ifla_vf_rate tivt;
int len, argc = *argcp;
char **argv = *argvp;
struct rtattr *vfinfo;
tivt.min_tx_rate = -1;
tivt.max_tx_rate = -1;
vfinfo = addattr_nest(&req->n, sizeof(*req), IFLA_VF_INFO);
while (NEXT_ARG_OK()) {
NEXT_ARG();
count++;
if (!matches(*argv, "max_tx_rate")) {
/* new API in use */
new_rate_api = 1;
/* override legacy rate */
override_legacy_rate = 1;
} else if (!matches(*argv, "min_tx_rate")) {
/* new API in use */
new_rate_api = 1;
}
}
while (count--) {
/* rewind arg */
PREV_ARG();
}
while (NEXT_ARG_OK()) {
NEXT_ARG();
if (matches(*argv, "mac") == 0) {
struct ifla_vf_mac ivm;
NEXT_ARG();
ivm.vf = vf;
len = ll_addr_a2n((char *)ivm.mac, 32, *argv);
if (len < 0)
return -1;
addattr_l(&req->n, sizeof(*req), IFLA_VF_MAC, &ivm, sizeof(ivm));
} else if (matches(*argv, "vlan") == 0) {
struct ifla_vf_vlan ivv;
NEXT_ARG();
if (get_unsigned(&ivv.vlan, *argv, 0)) {
invarg("Invalid \"vlan\" value\n", *argv);
}
ivv.vf = vf;
ivv.qos = 0;
if (NEXT_ARG_OK()) {
NEXT_ARG();
if (matches(*argv, "qos") == 0) {
NEXT_ARG();
if (get_unsigned(&ivv.qos, *argv, 0)) {
invarg("Invalid \"qos\" value\n", *argv);
}
} else {
/* rewind arg */
PREV_ARG();
}
}
addattr_l(&req->n, sizeof(*req), IFLA_VF_VLAN, &ivv, sizeof(ivv));
} else if (matches(*argv, "rate") == 0) {
struct ifla_vf_tx_rate ivt;
NEXT_ARG();
if (get_unsigned(&ivt.rate, *argv, 0)) {
invarg("Invalid \"rate\" value\n", *argv);
}
ivt.vf = vf;
if (!new_rate_api)
addattr_l(&req->n, sizeof(*req),
IFLA_VF_TX_RATE, &ivt, sizeof(ivt));
else if (!override_legacy_rate)
tivt.max_tx_rate = ivt.rate;
} else if (matches(*argv, "max_tx_rate") == 0) {
NEXT_ARG();
if (get_unsigned(&tivt.max_tx_rate, *argv, 0))
invarg("Invalid \"max tx rate\" value\n",
*argv);
tivt.vf = vf;
} else if (matches(*argv, "min_tx_rate") == 0) {
NEXT_ARG();
if (get_unsigned(&tivt.min_tx_rate, *argv, 0))
invarg("Invalid \"min tx rate\" value\n",
*argv);
tivt.vf = vf;
} else if (matches(*argv, "spoofchk") == 0) {
struct ifla_vf_spoofchk ivs;
NEXT_ARG();
if (matches(*argv, "on") == 0)
ivs.setting = 1;
else if (matches(*argv, "off") == 0)
ivs.setting = 0;
else
invarg("Invalid \"spoofchk\" value\n", *argv);
ivs.vf = vf;
addattr_l(&req->n, sizeof(*req), IFLA_VF_SPOOFCHK, &ivs, sizeof(ivs));
} else if (matches(*argv, "state") == 0) {
struct ifla_vf_link_state ivl;
NEXT_ARG();
if (matches(*argv, "auto") == 0)
ivl.link_state = IFLA_VF_LINK_STATE_AUTO;
else if (matches(*argv, "enable") == 0)
ivl.link_state = IFLA_VF_LINK_STATE_ENABLE;
else if (matches(*argv, "disable") == 0)
ivl.link_state = IFLA_VF_LINK_STATE_DISABLE;
else
invarg("Invalid \"state\" value\n", *argv);
ivl.vf = vf;
addattr_l(&req->n, sizeof(*req), IFLA_VF_LINK_STATE, &ivl, sizeof(ivl));
} else {
/* rewind arg */
PREV_ARG();
break;
}
}
if (new_rate_api) {
int tmin, tmax;
if (tivt.min_tx_rate == -1 || tivt.max_tx_rate == -1) {
ipaddr_get_vf_rate(tivt.vf, &tmin, &tmax, dev_index);
if (tivt.min_tx_rate == -1)
tivt.min_tx_rate = tmin;
if (tivt.max_tx_rate == -1)
tivt.max_tx_rate = tmax;
}
addattr_l(&req->n, sizeof(*req), IFLA_VF_RATE, &tivt,
sizeof(tivt));
}
if (argc == *argcp)
incomplete_command();
addattr_nest_end(&req->n, vfinfo);
*argcp = argc;
*argvp = argv;
return 0;
}
static int xfrm_state_modify(int cmd, unsigned flags, int argc, char **argv)
{
struct rtnl_handle rth;
struct {
struct nlmsghdr n;
struct xfrm_usersa_info xsinfo;
char buf[RTA_BUF_SIZE];
} req;
char *idp = NULL;
char *ealgop = NULL;
char *aalgop = NULL;
char *calgop = NULL;
memset(&req, 0, sizeof(req));
req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsinfo));
req.n.nlmsg_flags = NLM_F_REQUEST|flags;
req.n.nlmsg_type = cmd;
req.xsinfo.family = preferred_family;
req.xsinfo.lft.soft_byte_limit = XFRM_INF;
req.xsinfo.lft.hard_byte_limit = XFRM_INF;
req.xsinfo.lft.soft_packet_limit = XFRM_INF;
req.xsinfo.lft.hard_packet_limit = XFRM_INF;
while (argc > 0) {
if (strcmp(*argv, "mode") == 0) {
NEXT_ARG();
xfrm_mode_parse(&req.xsinfo.mode, &argc, &argv);
} else if (strcmp(*argv, "reqid") == 0) {
NEXT_ARG();
xfrm_reqid_parse(&req.xsinfo.reqid, &argc, &argv);
} else if (strcmp(*argv, "seq") == 0) {
NEXT_ARG();
xfrm_seq_parse(&req.xsinfo.seq, &argc, &argv);
} else if (strcmp(*argv, "replay-window") == 0) {
NEXT_ARG();
if (get_u8(&req.xsinfo.replay_window, *argv, 0))
invarg("\"replay-window\" value is invalid", *argv);
} else if (strcmp(*argv, "flag") == 0) {
NEXT_ARG();
xfrm_state_flag_parse(&req.xsinfo.flags, &argc, &argv);
} else if (strcmp(*argv, "sel") == 0) {
NEXT_ARG();
xfrm_selector_parse(&req.xsinfo.sel, &argc, &argv);
} else if (strcmp(*argv, "limit") == 0) {
NEXT_ARG();
xfrm_lifetime_cfg_parse(&req.xsinfo.lft, &argc, &argv);
} else if (strcmp(*argv, "encap") == 0) {
struct xfrm_encap_tmpl encap;
inet_prefix oa;
NEXT_ARG();
xfrm_encap_type_parse(&encap.encap_type, &argc, &argv);
NEXT_ARG();
if (get_u16(&encap.encap_sport, *argv, 0))
invarg("\"encap\" sport value is invalid", *argv);
encap.encap_sport = htons(encap.encap_sport);
NEXT_ARG();
if (get_u16(&encap.encap_dport, *argv, 0))
invarg("\"encap\" dport value is invalid", *argv);
encap.encap_dport = htons(encap.encap_dport);
NEXT_ARG();
get_addr(&oa, *argv, AF_UNSPEC);
memcpy(&encap.encap_oa, &oa.data, sizeof(encap.encap_oa));
addattr_l(&req.n, sizeof(req.buf), XFRMA_ENCAP,
(void *)&encap, sizeof(encap));
} else {
/* try to assume ALGO */
int type = xfrm_algotype_getbyname(*argv);
switch (type) {
case XFRMA_ALG_CRYPT:
case XFRMA_ALG_AUTH:
case XFRMA_ALG_COMP:
{
/* ALGO */
struct {
struct xfrm_algo alg;
char buf[XFRM_ALGO_KEY_BUF_SIZE];
} alg;
int len;
char *name;
char *key;
switch (type) {
case XFRMA_ALG_CRYPT:
if (ealgop)
duparg("ALGOTYPE", *argv);
ealgop = *argv;
break;
case XFRMA_ALG_AUTH:
if (aalgop)
duparg("ALGOTYPE", *argv);
aalgop = *argv;
break;
case XFRMA_ALG_COMP:
if (calgop)
duparg("ALGOTYPE", *argv);
calgop = *argv;
break;
default:
/* not reached */
invarg("\"ALGOTYPE\" is invalid\n", *argv);
}
if (!NEXT_ARG_OK())
missarg("ALGONAME");
NEXT_ARG();
name = *argv;
if (!NEXT_ARG_OK())
missarg("ALGOKEY");
NEXT_ARG();
key = *argv;
memset(&alg, 0, sizeof(alg));
xfrm_algo_parse((void *)&alg, type, name, key,
sizeof(alg.buf));
len = sizeof(struct xfrm_algo) + alg.alg.alg_key_len;
addattr_l(&req.n, sizeof(req.buf), type,
(void *)&alg, len);
break;
}
default:
/* try to assume ID */
if (idp)
invarg("unknown", *argv);
idp = *argv;
/* ID */
xfrm_id_parse(&req.xsinfo.saddr, &req.xsinfo.id,
&req.xsinfo.family, 0, &argc, &argv);
if (preferred_family == AF_UNSPEC)
preferred_family = req.xsinfo.family;
}
}
argc--; argv++;
}
if (!idp) {
// fprintf(stderr, "Not enough information: \"ID\" is required\n");
exit(1);
}
if (ealgop || aalgop || calgop) {
if (req.xsinfo.id.proto != IPPROTO_ESP &&
req.xsinfo.id.proto != IPPROTO_AH &&
req.xsinfo.id.proto != IPPROTO_COMP) {
// fprintf(stderr, "\"ALGO\" is invalid with proto=%s\n", strxf_xfrmproto(req.xsinfo.id.proto));
exit(1);
}
} else {
if (req.xsinfo.id.proto == IPPROTO_ESP ||
req.xsinfo.id.proto == IPPROTO_AH ||
req.xsinfo.id.proto == IPPROTO_COMP) {
// fprintf(stderr, "\"ALGO\" is required with proto=%s\n", strxf_xfrmproto(req.xsinfo.id.proto));
exit (1);
}
}
if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
exit(1);
if (req.xsinfo.family == AF_UNSPEC)
req.xsinfo.family = AF_INET;
if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0)
exit(2);
rtnl_close(&rth);
return 0;
}
static int iplink_parse_vf(int vf, int *argcp, char ***argvp,
struct iplink_req *req)
{
int len, argc = *argcp;
char **argv = *argvp;
struct rtattr *vfinfo;
vfinfo = addattr_nest(&req->n, sizeof(*req), IFLA_VF_INFO);
while (NEXT_ARG_OK()) {
NEXT_ARG();
if (matches(*argv, "mac") == 0) {
struct ifla_vf_mac ivm;
NEXT_ARG();
ivm.vf = vf;
len = ll_addr_a2n((char *)ivm.mac, 32, *argv);
if (len < 0)
return -1;
addattr_l(&req->n, sizeof(*req), IFLA_VF_MAC, &ivm, sizeof(ivm));
} else if (matches(*argv, "vlan") == 0) {
struct ifla_vf_vlan ivv;
NEXT_ARG();
if (get_unsigned(&ivv.vlan, *argv, 0)) {
invarg("Invalid \"vlan\" value\n", *argv);
}
ivv.vf = vf;
ivv.qos = 0;
if (NEXT_ARG_OK()) {
NEXT_ARG();
if (matches(*argv, "qos") == 0) {
NEXT_ARG();
if (get_unsigned(&ivv.qos, *argv, 0)) {
invarg("Invalid \"qos\" value\n", *argv);
}
} else {
/* rewind arg */
PREV_ARG();
}
}
addattr_l(&req->n, sizeof(*req), IFLA_VF_VLAN, &ivv, sizeof(ivv));
} else if (matches(*argv, "rate") == 0) {
struct ifla_vf_tx_rate ivt;
NEXT_ARG();
if (get_unsigned(&ivt.rate, *argv, 0)) {
invarg("Invalid \"rate\" value\n", *argv);
}
ivt.vf = vf;
addattr_l(&req->n, sizeof(*req), IFLA_VF_TX_RATE, &ivt, sizeof(ivt));
} else if (matches(*argv, "spoofchk") == 0) {
struct ifla_vf_spoofchk ivs;
NEXT_ARG();
if (matches(*argv, "on") == 0)
ivs.setting = 1;
else if (matches(*argv, "off") == 0)
ivs.setting = 0;
else
invarg("Invalid \"spoofchk\" value\n", *argv);
ivs.vf = vf;
addattr_l(&req->n, sizeof(*req), IFLA_VF_SPOOFCHK, &ivs, sizeof(ivs));
} else {
/* rewind arg */
PREV_ARG();
break;
}
}
if (argc == *argcp)
incomplete_command();
addattr_nest_end(&req->n, vfinfo);
*argcp = argc;
*argvp = argv;
return 0;
}
static int xfrm_state_modify(int cmd, unsigned flags, int argc, char **argv)
{
struct rtnl_handle rth;
struct {
struct nlmsghdr n;
struct xfrm_usersa_info xsinfo;
char buf[RTA_BUF_SIZE];
} req;
struct xfrm_replay_state replay;
struct xfrm_replay_state_esn replay_esn;
__u32 replay_window = 0;
__u32 seq = 0, oseq = 0, seq_hi = 0, oseq_hi = 0;
char *idp = NULL;
char *aeadop = NULL;
char *ealgop = NULL;
char *aalgop = NULL;
char *calgop = NULL;
char *coap = NULL;
char *sctxp = NULL;
__u32 extra_flags = 0;
struct xfrm_mark mark = {0, 0};
struct {
struct xfrm_user_sec_ctx sctx;
char str[CTX_BUF_SIZE];
} ctx;
memset(&req, 0, sizeof(req));
memset(&replay, 0, sizeof(replay));
memset(&replay_esn, 0, sizeof(replay_esn));
memset(&ctx, 0, sizeof(ctx));
req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsinfo));
req.n.nlmsg_flags = NLM_F_REQUEST|flags;
req.n.nlmsg_type = cmd;
req.xsinfo.family = preferred_family;
req.xsinfo.lft.soft_byte_limit = XFRM_INF;
req.xsinfo.lft.hard_byte_limit = XFRM_INF;
req.xsinfo.lft.soft_packet_limit = XFRM_INF;
req.xsinfo.lft.hard_packet_limit = XFRM_INF;
while (argc > 0) {
if (strcmp(*argv, "mode") == 0) {
NEXT_ARG();
xfrm_mode_parse(&req.xsinfo.mode, &argc, &argv);
} else if (strcmp(*argv, "mark") == 0) {
xfrm_parse_mark(&mark, &argc, &argv);
} else if (strcmp(*argv, "reqid") == 0) {
NEXT_ARG();
xfrm_reqid_parse(&req.xsinfo.reqid, &argc, &argv);
} else if (strcmp(*argv, "seq") == 0) {
NEXT_ARG();
xfrm_seq_parse(&req.xsinfo.seq, &argc, &argv);
} else if (strcmp(*argv, "replay-window") == 0) {
NEXT_ARG();
if (get_u32(&replay_window, *argv, 0))
invarg("value after \"replay-window\" is invalid", *argv);
} else if (strcmp(*argv, "replay-seq") == 0) {
NEXT_ARG();
if (get_u32(&seq, *argv, 0))
invarg("value after \"replay-seq\" is invalid", *argv);
} else if (strcmp(*argv, "replay-seq-hi") == 0) {
NEXT_ARG();
if (get_u32(&seq_hi, *argv, 0))
invarg("value after \"replay-seq-hi\" is invalid", *argv);
} else if (strcmp(*argv, "replay-oseq") == 0) {
NEXT_ARG();
if (get_u32(&oseq, *argv, 0))
invarg("value after \"replay-oseq\" is invalid", *argv);
} else if (strcmp(*argv, "replay-oseq-hi") == 0) {
NEXT_ARG();
if (get_u32(&oseq_hi, *argv, 0))
invarg("value after \"replay-oseq-hi\" is invalid", *argv);
} else if (strcmp(*argv, "flag") == 0) {
NEXT_ARG();
xfrm_state_flag_parse(&req.xsinfo.flags, &argc, &argv);
} else if (strcmp(*argv, "extra-flag") == 0) {
NEXT_ARG();
xfrm_state_extra_flag_parse(&extra_flags, &argc, &argv);
} else if (strcmp(*argv, "sel") == 0) {
NEXT_ARG();
preferred_family = AF_UNSPEC;
xfrm_selector_parse(&req.xsinfo.sel, &argc, &argv);
preferred_family = req.xsinfo.sel.family;
} else if (strcmp(*argv, "limit") == 0) {
NEXT_ARG();
xfrm_lifetime_cfg_parse(&req.xsinfo.lft, &argc, &argv);
} else if (strcmp(*argv, "encap") == 0) {
struct xfrm_encap_tmpl encap;
inet_prefix oa;
NEXT_ARG();
xfrm_encap_type_parse(&encap.encap_type, &argc, &argv);
NEXT_ARG();
if (get_u16(&encap.encap_sport, *argv, 0))
invarg("SPORT value after \"encap\" is invalid", *argv);
encap.encap_sport = htons(encap.encap_sport);
NEXT_ARG();
if (get_u16(&encap.encap_dport, *argv, 0))
invarg("DPORT value after \"encap\" is invalid", *argv);
encap.encap_dport = htons(encap.encap_dport);
NEXT_ARG();
get_addr(&oa, *argv, AF_UNSPEC);
memcpy(&encap.encap_oa, &oa.data, sizeof(encap.encap_oa));
addattr_l(&req.n, sizeof(req.buf), XFRMA_ENCAP,
(void *)&encap, sizeof(encap));
} else if (strcmp(*argv, "coa") == 0) {
inet_prefix coa;
xfrm_address_t xcoa;
if (coap)
duparg("coa", *argv);
coap = *argv;
NEXT_ARG();
get_prefix(&coa, *argv, preferred_family);
if (coa.family == AF_UNSPEC)
invarg("value after \"coa\" has an unrecognized address family", *argv);
if (coa.bytelen > sizeof(xcoa))
invarg("value after \"coa\" is too large", *argv);
memset(&xcoa, 0, sizeof(xcoa));
memcpy(&xcoa, &coa.data, coa.bytelen);
addattr_l(&req.n, sizeof(req.buf), XFRMA_COADDR,
(void *)&xcoa, sizeof(xcoa));
} else if (strcmp(*argv, "ctx") == 0) {
char *context;
if (sctxp)
duparg("ctx", *argv);
sctxp = *argv;
NEXT_ARG();
context = *argv;
xfrm_sctx_parse((char *)&ctx.str, context, &ctx.sctx);
addattr_l(&req.n, sizeof(req.buf), XFRMA_SEC_CTX,
(void *)&ctx, ctx.sctx.len);
} else {
/* try to assume ALGO */
int type = xfrm_algotype_getbyname(*argv);
switch (type) {
case XFRMA_ALG_AEAD:
case XFRMA_ALG_CRYPT:
case XFRMA_ALG_AUTH:
case XFRMA_ALG_AUTH_TRUNC:
case XFRMA_ALG_COMP:
{
/* ALGO */
struct {
union {
struct xfrm_algo alg;
struct xfrm_algo_aead aead;
struct xfrm_algo_auth auth;
} u;
char buf[XFRM_ALGO_KEY_BUF_SIZE];
} alg = {};
int len;
__u32 icvlen, trunclen;
char *name;
char *key = "";
char *buf;
switch (type) {
case XFRMA_ALG_AEAD:
if (ealgop || aalgop || aeadop)
duparg("ALGO-TYPE", *argv);
aeadop = *argv;
break;
case XFRMA_ALG_CRYPT:
if (ealgop || aeadop)
duparg("ALGO-TYPE", *argv);
ealgop = *argv;
break;
case XFRMA_ALG_AUTH:
case XFRMA_ALG_AUTH_TRUNC:
if (aalgop || aeadop)
duparg("ALGO-TYPE", *argv);
aalgop = *argv;
break;
case XFRMA_ALG_COMP:
if (calgop)
duparg("ALGO-TYPE", *argv);
calgop = *argv;
break;
default:
/* not reached */
invarg("ALGO-TYPE value is invalid\n", *argv);
}
if (!NEXT_ARG_OK())
missarg("ALGO-NAME");
NEXT_ARG();
name = *argv;
switch (type) {
case XFRMA_ALG_AEAD:
case XFRMA_ALG_CRYPT:
case XFRMA_ALG_AUTH:
case XFRMA_ALG_AUTH_TRUNC:
if (!NEXT_ARG_OK())
missarg("ALGO-KEYMAT");
NEXT_ARG();
key = *argv;
break;
}
buf = alg.u.alg.alg_key;
len = sizeof(alg.u.alg);
switch (type) {
case XFRMA_ALG_AEAD:
if (!NEXT_ARG_OK())
missarg("ALGO-ICV-LEN");
NEXT_ARG();
if (get_u32(&icvlen, *argv, 0))
invarg("ALGO-ICV-LEN value is invalid",
*argv);
alg.u.aead.alg_icv_len = icvlen;
buf = alg.u.aead.alg_key;
len = sizeof(alg.u.aead);
break;
case XFRMA_ALG_AUTH_TRUNC:
if (!NEXT_ARG_OK())
missarg("ALGO-TRUNC-LEN");
NEXT_ARG();
if (get_u32(&trunclen, *argv, 0))
invarg("ALGO-TRUNC-LEN value is invalid",
*argv);
alg.u.auth.alg_trunc_len = trunclen;
buf = alg.u.auth.alg_key;
len = sizeof(alg.u.auth);
break;
}
xfrm_algo_parse((void *)&alg, type, name, key,
buf, sizeof(alg.buf));
len += alg.u.alg.alg_key_len;
addattr_l(&req.n, sizeof(req.buf), type,
(void *)&alg, len);
break;
}
default:
/* try to assume ID */
if (idp)
invarg("unknown", *argv);
idp = *argv;
/* ID */
xfrm_id_parse(&req.xsinfo.saddr, &req.xsinfo.id,
&req.xsinfo.family, 0, &argc, &argv);
if (preferred_family == AF_UNSPEC)
preferred_family = req.xsinfo.family;
}
}
argc--; argv++;
}
if (req.xsinfo.flags & XFRM_STATE_ESN &&
replay_window == 0) {
fprintf(stderr, "Error: esn flag set without replay-window.\n");
exit(-1);
}
if (replay_window > XFRMA_REPLAY_ESN_MAX) {
fprintf(stderr,
"Error: replay-window (%u) > XFRMA_REPLAY_ESN_MAX (%u).\n",
replay_window, XFRMA_REPLAY_ESN_MAX);
exit(-1);
}
if (req.xsinfo.flags & XFRM_STATE_ESN ||
replay_window > (sizeof(replay.bitmap) * 8)) {
replay_esn.seq = seq;
replay_esn.oseq = oseq;
replay_esn.seq_hi = seq_hi;
replay_esn.oseq_hi = oseq_hi;
replay_esn.replay_window = replay_window;
replay_esn.bmp_len = (replay_window + sizeof(__u32) * 8 - 1) /
(sizeof(__u32) * 8);
addattr_l(&req.n, sizeof(req.buf), XFRMA_REPLAY_ESN_VAL,
&replay_esn, sizeof(replay_esn));
} else {
if (seq || oseq) {
replay.seq = seq;
replay.oseq = oseq;
addattr_l(&req.n, sizeof(req.buf), XFRMA_REPLAY_VAL,
&replay, sizeof(replay));
}
req.xsinfo.replay_window = replay_window;
}
if (extra_flags)
addattr32(&req.n, sizeof(req.buf), XFRMA_SA_EXTRA_FLAGS,
extra_flags);
if (!idp) {
fprintf(stderr, "Not enough information: ID is required\n");
exit(1);
}
if (mark.m) {
int r = addattr_l(&req.n, sizeof(req.buf), XFRMA_MARK,
(void *)&mark, sizeof(mark));
if (r < 0) {
fprintf(stderr, "XFRMA_MARK failed\n");
exit(1);
}
}
if (xfrm_xfrmproto_is_ipsec(req.xsinfo.id.proto)) {
switch (req.xsinfo.mode) {
case XFRM_MODE_TRANSPORT:
case XFRM_MODE_TUNNEL:
break;
case XFRM_MODE_BEET:
if (req.xsinfo.id.proto == IPPROTO_ESP)
break;
default:
fprintf(stderr, "MODE value is invalid with XFRM-PROTO value \"%s\"\n",
strxf_xfrmproto(req.xsinfo.id.proto));
exit(1);
}
switch (req.xsinfo.id.proto) {
case IPPROTO_ESP:
if (calgop) {
fprintf(stderr, "ALGO-TYPE value \"%s\" is invalid with XFRM-PROTO value \"%s\"\n",
strxf_algotype(XFRMA_ALG_COMP),
strxf_xfrmproto(req.xsinfo.id.proto));
exit(1);
}
if (!ealgop && !aeadop) {
fprintf(stderr, "ALGO-TYPE value \"%s\" or \"%s\" is required with XFRM-PROTO value \"%s\"\n",
strxf_algotype(XFRMA_ALG_CRYPT),
strxf_algotype(XFRMA_ALG_AEAD),
strxf_xfrmproto(req.xsinfo.id.proto));
exit(1);
}
break;
case IPPROTO_AH:
if (ealgop || aeadop || calgop) {
fprintf(stderr, "ALGO-TYPE values \"%s\", \"%s\", and \"%s\" are invalid with XFRM-PROTO value \"%s\"\n",
strxf_algotype(XFRMA_ALG_CRYPT),
strxf_algotype(XFRMA_ALG_AEAD),
strxf_algotype(XFRMA_ALG_COMP),
strxf_xfrmproto(req.xsinfo.id.proto));
exit(1);
}
if (!aalgop) {
fprintf(stderr, "ALGO-TYPE value \"%s\" or \"%s\" is required with XFRM-PROTO value \"%s\"\n",
strxf_algotype(XFRMA_ALG_AUTH),
strxf_algotype(XFRMA_ALG_AUTH_TRUNC),
strxf_xfrmproto(req.xsinfo.id.proto));
exit(1);
}
break;
case IPPROTO_COMP:
if (ealgop || aalgop || aeadop) {
fprintf(stderr, "ALGO-TYPE values \"%s\", \"%s\", \"%s\", and \"%s\" are invalid with XFRM-PROTO value \"%s\"\n",
strxf_algotype(XFRMA_ALG_CRYPT),
strxf_algotype(XFRMA_ALG_AUTH),
strxf_algotype(XFRMA_ALG_AUTH_TRUNC),
strxf_algotype(XFRMA_ALG_AEAD),
strxf_xfrmproto(req.xsinfo.id.proto));
exit(1);
}
if (!calgop) {
fprintf(stderr, "ALGO-TYPE value \"%s\" is required with XFRM-PROTO value \"%s\"\n",
strxf_algotype(XFRMA_ALG_COMP),
strxf_xfrmproto(req.xsinfo.id.proto));
exit(1);
}
break;
}
} else {
if (ealgop || aalgop || aeadop || calgop) {
fprintf(stderr, "ALGO is invalid with XFRM-PROTO value \"%s\"\n",
strxf_xfrmproto(req.xsinfo.id.proto));
exit(1);
}
}
if (xfrm_xfrmproto_is_ro(req.xsinfo.id.proto)) {
switch (req.xsinfo.mode) {
case XFRM_MODE_ROUTEOPTIMIZATION:
case XFRM_MODE_IN_TRIGGER:
break;
case 0:
fprintf(stderr, "\"mode\" is required with XFRM-PROTO value \"%s\"\n",
strxf_xfrmproto(req.xsinfo.id.proto));
exit(1);
default:
fprintf(stderr, "MODE value is invalid with XFRM-PROTO value \"%s\"\n",
strxf_xfrmproto(req.xsinfo.id.proto));
exit(1);
}
if (!coap) {
fprintf(stderr, "\"coa\" is required with XFRM-PROTO value \"%s\"\n",
strxf_xfrmproto(req.xsinfo.id.proto));
exit(1);
}
} else {
if (coap) {
fprintf(stderr, "\"coa\" is invalid with XFRM-PROTO value \"%s\"\n",
strxf_xfrmproto(req.xsinfo.id.proto));
exit(1);
}
}
if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
exit(1);
if (req.xsinfo.family == AF_UNSPEC)
req.xsinfo.family = AF_INET;
if (rtnl_talk(&rth, &req.n, NULL, 0) < 0)
exit(2);
rtnl_close(&rth);
return 0;
}
static int netem_parse_opt(struct qdisc_util *qu, int argc, char **argv,
struct nlmsghdr *n, const char *dev)
{
int dist_size = 0;
int slot_dist_size = 0;
struct rtattr *tail;
struct tc_netem_qopt opt = { .limit = 1000 };
struct tc_netem_corr cor = {};
struct tc_netem_reorder reorder = {};
struct tc_netem_corrupt corrupt = {};
struct tc_netem_gimodel gimodel;
struct tc_netem_gemodel gemodel;
struct tc_netem_rate rate = {};
struct tc_netem_slot slot = {};
__s16 *dist_data = NULL;
__s16 *slot_dist_data = NULL;
__u16 loss_type = NETEM_LOSS_UNSPEC;
int present[__TCA_NETEM_MAX] = {};
__u64 rate64 = 0;
for ( ; argc > 0; --argc, ++argv) {
if (matches(*argv, "limit") == 0) {
NEXT_ARG();
if (get_size(&opt.limit, *argv)) {
explain1("limit");
return -1;
}
} else if (matches(*argv, "latency") == 0 ||
matches(*argv, "delay") == 0) {
NEXT_ARG();
if (get_ticks(&opt.latency, *argv)) {
explain1("latency");
return -1;
}
if (NEXT_IS_NUMBER()) {
NEXT_ARG();
if (get_ticks(&opt.jitter, *argv)) {
explain1("latency");
return -1;
}
if (NEXT_IS_NUMBER()) {
NEXT_ARG();
++present[TCA_NETEM_CORR];
if (get_percent(&cor.delay_corr, *argv)) {
explain1("latency");
return -1;
}
}
}
} else if (matches(*argv, "loss") == 0 ||
matches(*argv, "drop") == 0) {
if (opt.loss > 0 || loss_type != NETEM_LOSS_UNSPEC) {
explain1("duplicate loss argument\n");
return -1;
}
NEXT_ARG();
/* Old (deprecated) random loss model syntax */
if (isdigit(argv[0][0]))
goto random_loss_model;
if (!strcmp(*argv, "random")) {
NEXT_ARG();
random_loss_model:
if (get_percent(&opt.loss, *argv)) {
explain1("loss percent");
return -1;
}
if (NEXT_IS_NUMBER()) {
NEXT_ARG();
++present[TCA_NETEM_CORR];
if (get_percent(&cor.loss_corr, *argv)) {
explain1("loss correllation");
return -1;
}
}
} else if (!strcmp(*argv, "state")) {
double p13;
NEXT_ARG();
if (parse_percent(&p13, *argv)) {
explain1("loss p13");
return -1;
}
/* set defaults */
set_percent(&gimodel.p13, p13);
set_percent(&gimodel.p31, 1. - p13);
set_percent(&gimodel.p32, 0);
set_percent(&gimodel.p23, 1.);
set_percent(&gimodel.p14, 0);
loss_type = NETEM_LOSS_GI;
if (!NEXT_IS_NUMBER())
continue;
NEXT_ARG();
if (get_percent(&gimodel.p31, *argv)) {
explain1("loss p31");
return -1;
}
if (!NEXT_IS_NUMBER())
continue;
NEXT_ARG();
if (get_percent(&gimodel.p32, *argv)) {
explain1("loss p32");
return -1;
}
if (!NEXT_IS_NUMBER())
continue;
NEXT_ARG();
if (get_percent(&gimodel.p23, *argv)) {
explain1("loss p23");
return -1;
}
if (!NEXT_IS_NUMBER())
continue;
NEXT_ARG();
if (get_percent(&gimodel.p14, *argv)) {
explain1("loss p14");
return -1;
}
} else if (!strcmp(*argv, "gemodel")) {
NEXT_ARG();
if (get_percent(&gemodel.p, *argv)) {
explain1("loss gemodel p");
return -1;
}
/* set defaults */
set_percent(&gemodel.r, 1.);
set_percent(&gemodel.h, 0);
set_percent(&gemodel.k1, 0);
loss_type = NETEM_LOSS_GE;
if (!NEXT_IS_NUMBER())
continue;
NEXT_ARG();
if (get_percent(&gemodel.r, *argv)) {
explain1("loss gemodel r");
return -1;
}
if (!NEXT_IS_NUMBER())
continue;
NEXT_ARG();
if (get_percent(&gemodel.h, *argv)) {
explain1("loss gemodel h");
return -1;
}
/* netem option is "1-h" but kernel
* expects "h".
*/
gemodel.h = UINT32_MAX - gemodel.h;
if (!NEXT_IS_NUMBER())
continue;
NEXT_ARG();
if (get_percent(&gemodel.k1, *argv)) {
explain1("loss gemodel k");
return -1;
}
} else {
fprintf(stderr, "Unknown loss parameter: %s\n",
*argv);
return -1;
}
} else if (matches(*argv, "ecn") == 0) {
present[TCA_NETEM_ECN] = 1;
} else if (matches(*argv, "reorder") == 0) {
NEXT_ARG();
present[TCA_NETEM_REORDER] = 1;
if (get_percent(&reorder.probability, *argv)) {
explain1("reorder");
return -1;
}
if (NEXT_IS_NUMBER()) {
NEXT_ARG();
++present[TCA_NETEM_CORR];
if (get_percent(&reorder.correlation, *argv)) {
explain1("reorder");
return -1;
}
}
} else if (matches(*argv, "corrupt") == 0) {
NEXT_ARG();
present[TCA_NETEM_CORRUPT] = 1;
if (get_percent(&corrupt.probability, *argv)) {
explain1("corrupt");
return -1;
}
if (NEXT_IS_NUMBER()) {
NEXT_ARG();
++present[TCA_NETEM_CORR];
if (get_percent(&corrupt.correlation, *argv)) {
explain1("corrupt");
return -1;
}
}
} else if (matches(*argv, "gap") == 0) {
NEXT_ARG();
if (get_u32(&opt.gap, *argv, 0)) {
explain1("gap");
return -1;
}
} else if (matches(*argv, "duplicate") == 0) {
NEXT_ARG();
if (get_percent(&opt.duplicate, *argv)) {
explain1("duplicate");
return -1;
}
if (NEXT_IS_NUMBER()) {
NEXT_ARG();
if (get_percent(&cor.dup_corr, *argv)) {
explain1("duplicate");
return -1;
}
}
} else if (matches(*argv, "distribution") == 0) {
NEXT_ARG();
dist_data = calloc(sizeof(dist_data[0]), MAX_DIST);
dist_size = get_distribution(*argv, dist_data, MAX_DIST);
if (dist_size <= 0) {
free(dist_data);
return -1;
}
} else if (matches(*argv, "rate") == 0) {
++present[TCA_NETEM_RATE];
NEXT_ARG();
if (strchr(*argv, '%')) {
if (get_percent_rate64(&rate64, *argv, dev)) {
explain1("rate");
return -1;
}
} else if (get_rate64(&rate64, *argv)) {
explain1("rate");
return -1;
}
if (NEXT_IS_SIGNED_NUMBER()) {
NEXT_ARG();
if (get_s32(&rate.packet_overhead, *argv, 0)) {
explain1("rate");
return -1;
}
}
if (NEXT_IS_NUMBER()) {
NEXT_ARG();
if (get_u32(&rate.cell_size, *argv, 0)) {
explain1("rate");
return -1;
}
}
if (NEXT_IS_SIGNED_NUMBER()) {
NEXT_ARG();
if (get_s32(&rate.cell_overhead, *argv, 0)) {
explain1("rate");
return -1;
}
}
} else if (matches(*argv, "slot") == 0) {
if (NEXT_IS_NUMBER()) {
NEXT_ARG();
present[TCA_NETEM_SLOT] = 1;
if (get_time64(&slot.min_delay, *argv)) {
explain1("slot min_delay");
return -1;
}
if (NEXT_IS_NUMBER()) {
NEXT_ARG();
if (get_time64(&slot.max_delay, *argv) ||
slot.max_delay < slot.min_delay) {
explain1("slot max_delay");
return -1;
}
} else {
slot.max_delay = slot.min_delay;
}
} else {
NEXT_ARG();
if (strcmp(*argv, "distribution") == 0) {
present[TCA_NETEM_SLOT] = 1;
NEXT_ARG();
slot_dist_data = calloc(sizeof(slot_dist_data[0]), MAX_DIST);
if (!slot_dist_data)
return -1;
slot_dist_size = get_distribution(*argv, slot_dist_data, MAX_DIST);
if (slot_dist_size <= 0) {
free(slot_dist_data);
return -1;
}
NEXT_ARG();
if (get_time64(&slot.dist_delay, *argv)) {
explain1("slot delay");
return -1;
}
NEXT_ARG();
if (get_time64(&slot.dist_jitter, *argv)) {
explain1("slot jitter");
return -1;
}
if (slot.dist_jitter <= 0) {
fprintf(stderr, "Non-positive jitter\n");
return -1;
}
} else {
fprintf(stderr, "Unknown slot parameter: %s\n",
*argv);
return -1;
}
}
if (NEXT_ARG_OK() &&
matches(*(argv+1), "packets") == 0) {
NEXT_ARG();
if (!NEXT_ARG_OK() ||
get_s32(&slot.max_packets, *(argv+1), 0)) {
explain1("slot packets");
return -1;
}
NEXT_ARG();
}
if (NEXT_ARG_OK() &&
matches(*(argv+1), "bytes") == 0) {
unsigned int max_bytes;
NEXT_ARG();
if (!NEXT_ARG_OK() ||
get_size(&max_bytes, *(argv+1))) {
explain1("slot bytes");
return -1;
}
slot.max_bytes = (int) max_bytes;
NEXT_ARG();
}
} else if (strcmp(*argv, "help") == 0) {
explain();
return -1;
} else {
fprintf(stderr, "What is \"%s\"?\n", *argv);
explain();
return -1;
}
}
tail = NLMSG_TAIL(n);
if (reorder.probability) {
if (opt.latency == 0) {
fprintf(stderr, "reordering not possible without specifying some delay\n");
explain();
return -1;
}
if (opt.gap == 0)
opt.gap = 1;
} else if (opt.gap > 0) {
fprintf(stderr, "gap specified without reorder probability\n");
explain();
return -1;
}
if (present[TCA_NETEM_ECN]) {
if (opt.loss <= 0 && loss_type == NETEM_LOSS_UNSPEC) {
fprintf(stderr, "ecn requested without loss model\n");
explain();
return -1;
}
}
if (dist_data && (opt.latency == 0 || opt.jitter == 0)) {
fprintf(stderr, "distribution specified but no latency and jitter values\n");
explain();
return -1;
}
if (addattr_l(n, 1024, TCA_OPTIONS, &opt, sizeof(opt)) < 0)
return -1;
if (present[TCA_NETEM_CORR] &&
addattr_l(n, 1024, TCA_NETEM_CORR, &cor, sizeof(cor)) < 0)
return -1;
if (present[TCA_NETEM_REORDER] &&
addattr_l(n, 1024, TCA_NETEM_REORDER, &reorder, sizeof(reorder)) < 0)
return -1;
if (present[TCA_NETEM_ECN] &&
addattr_l(n, 1024, TCA_NETEM_ECN, &present[TCA_NETEM_ECN],
sizeof(present[TCA_NETEM_ECN])) < 0)
return -1;
if (present[TCA_NETEM_CORRUPT] &&
addattr_l(n, 1024, TCA_NETEM_CORRUPT, &corrupt, sizeof(corrupt)) < 0)
return -1;
if (present[TCA_NETEM_SLOT] &&
addattr_l(n, 1024, TCA_NETEM_SLOT, &slot, sizeof(slot)) < 0)
return -1;
if (loss_type != NETEM_LOSS_UNSPEC) {
struct rtattr *start;
start = addattr_nest(n, 1024, TCA_NETEM_LOSS | NLA_F_NESTED);
if (loss_type == NETEM_LOSS_GI) {
if (addattr_l(n, 1024, NETEM_LOSS_GI,
&gimodel, sizeof(gimodel)) < 0)
return -1;
} else if (loss_type == NETEM_LOSS_GE) {
if (addattr_l(n, 1024, NETEM_LOSS_GE,
&gemodel, sizeof(gemodel)) < 0)
return -1;
} else {
fprintf(stderr, "loss in the weeds!\n");
return -1;
}
addattr_nest_end(n, start);
}
if (present[TCA_NETEM_RATE]) {
if (rate64 >= (1ULL << 32)) {
if (addattr_l(n, 1024,
TCA_NETEM_RATE64, &rate64, sizeof(rate64)) < 0)
return -1;
rate.rate = ~0U;
} else {
rate.rate = rate64;
}
if (addattr_l(n, 1024, TCA_NETEM_RATE, &rate, sizeof(rate)) < 0)
return -1;
}
if (dist_data) {
if (addattr_l(n, MAX_DIST * sizeof(dist_data[0]),
TCA_NETEM_DELAY_DIST,
dist_data, dist_size * sizeof(dist_data[0])) < 0)
return -1;
free(dist_data);
}
if (slot_dist_data) {
if (addattr_l(n, MAX_DIST * sizeof(slot_dist_data[0]),
TCA_NETEM_SLOT_DIST,
slot_dist_data, slot_dist_size * sizeof(slot_dist_data[0])) < 0)
return -1;
free(slot_dist_data);
}
tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail;
return 0;
}
static int netem_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
{
const struct tc_netem_corr *cor = NULL;
const struct tc_netem_reorder *reorder = NULL;
const struct tc_netem_corrupt *corrupt = NULL;
const struct tc_netem_gimodel *gimodel = NULL;
const struct tc_netem_gemodel *gemodel = NULL;
int *ecn = NULL;
struct tc_netem_qopt qopt;
const struct tc_netem_rate *rate = NULL;
const struct tc_netem_slot *slot = NULL;
int len;
__u64 rate64 = 0;
SPRINT_BUF(b1);
if (opt == NULL)
return 0;
len = RTA_PAYLOAD(opt) - sizeof(qopt);
if (len < 0) {
fprintf(stderr, "options size error\n");
return -1;
}
memcpy(&qopt, RTA_DATA(opt), sizeof(qopt));
if (len > 0) {
struct rtattr *tb[TCA_NETEM_MAX+1];
parse_rtattr(tb, TCA_NETEM_MAX, RTA_DATA(opt) + sizeof(qopt),
len);
if (tb[TCA_NETEM_CORR]) {
if (RTA_PAYLOAD(tb[TCA_NETEM_CORR]) < sizeof(*cor))
return -1;
cor = RTA_DATA(tb[TCA_NETEM_CORR]);
}
if (tb[TCA_NETEM_REORDER]) {
if (RTA_PAYLOAD(tb[TCA_NETEM_REORDER]) < sizeof(*reorder))
return -1;
reorder = RTA_DATA(tb[TCA_NETEM_REORDER]);
}
if (tb[TCA_NETEM_CORRUPT]) {
if (RTA_PAYLOAD(tb[TCA_NETEM_CORRUPT]) < sizeof(*corrupt))
return -1;
corrupt = RTA_DATA(tb[TCA_NETEM_CORRUPT]);
}
if (tb[TCA_NETEM_LOSS]) {
struct rtattr *lb[NETEM_LOSS_MAX + 1];
parse_rtattr_nested(lb, NETEM_LOSS_MAX, tb[TCA_NETEM_LOSS]);
if (lb[NETEM_LOSS_GI])
gimodel = RTA_DATA(lb[NETEM_LOSS_GI]);
if (lb[NETEM_LOSS_GE])
gemodel = RTA_DATA(lb[NETEM_LOSS_GE]);
}
if (tb[TCA_NETEM_RATE]) {
if (RTA_PAYLOAD(tb[TCA_NETEM_RATE]) < sizeof(*rate))
return -1;
rate = RTA_DATA(tb[TCA_NETEM_RATE]);
}
if (tb[TCA_NETEM_ECN]) {
if (RTA_PAYLOAD(tb[TCA_NETEM_ECN]) < sizeof(*ecn))
return -1;
ecn = RTA_DATA(tb[TCA_NETEM_ECN]);
}
if (tb[TCA_NETEM_RATE64]) {
if (RTA_PAYLOAD(tb[TCA_NETEM_RATE64]) < sizeof(rate64))
return -1;
rate64 = rta_getattr_u64(tb[TCA_NETEM_RATE64]);
}
if (tb[TCA_NETEM_SLOT]) {
if (RTA_PAYLOAD(tb[TCA_NETEM_SLOT]) < sizeof(*slot))
return -1;
slot = RTA_DATA(tb[TCA_NETEM_SLOT]);
}
}
fprintf(f, "limit %d", qopt.limit);
if (qopt.latency) {
fprintf(f, " delay %s", sprint_ticks(qopt.latency, b1));
if (qopt.jitter) {
fprintf(f, " %s", sprint_ticks(qopt.jitter, b1));
if (cor && cor->delay_corr)
fprintf(f, " %s", sprint_percent(cor->delay_corr, b1));
}
}
if (qopt.loss) {
fprintf(f, " loss %s", sprint_percent(qopt.loss, b1));
if (cor && cor->loss_corr)
fprintf(f, " %s", sprint_percent(cor->loss_corr, b1));
}
if (gimodel) {
fprintf(f, " loss state p13 %s", sprint_percent(gimodel->p13, b1));
fprintf(f, " p31 %s", sprint_percent(gimodel->p31, b1));
fprintf(f, " p32 %s", sprint_percent(gimodel->p32, b1));
fprintf(f, " p23 %s", sprint_percent(gimodel->p23, b1));
fprintf(f, " p14 %s", sprint_percent(gimodel->p14, b1));
}
if (gemodel) {
fprintf(f, " loss gemodel p %s",
sprint_percent(gemodel->p, b1));
fprintf(f, " r %s", sprint_percent(gemodel->r, b1));
fprintf(f, " 1-h %s", sprint_percent(UINT32_MAX -
gemodel->h, b1));
fprintf(f, " 1-k %s", sprint_percent(gemodel->k1, b1));
}
if (qopt.duplicate) {
fprintf(f, " duplicate %s",
sprint_percent(qopt.duplicate, b1));
if (cor && cor->dup_corr)
fprintf(f, " %s", sprint_percent(cor->dup_corr, b1));
}
if (reorder && reorder->probability) {
fprintf(f, " reorder %s",
sprint_percent(reorder->probability, b1));
if (reorder->correlation)
fprintf(f, " %s",
sprint_percent(reorder->correlation, b1));
}
if (corrupt && corrupt->probability) {
fprintf(f, " corrupt %s",
sprint_percent(corrupt->probability, b1));
if (corrupt->correlation)
fprintf(f, " %s",
sprint_percent(corrupt->correlation, b1));
}
if (rate && rate->rate) {
if (rate64)
fprintf(f, " rate %s", sprint_rate(rate64, b1));
else
fprintf(f, " rate %s", sprint_rate(rate->rate, b1));
if (rate->packet_overhead)
fprintf(f, " packetoverhead %d", rate->packet_overhead);
if (rate->cell_size)
fprintf(f, " cellsize %u", rate->cell_size);
if (rate->cell_overhead)
fprintf(f, " celloverhead %d", rate->cell_overhead);
}
if (slot) {
if (slot->dist_jitter > 0) {
fprintf(f, " slot distribution %s", sprint_time64(slot->dist_delay, b1));
fprintf(f, " %s", sprint_time64(slot->dist_jitter, b1));
} else {
fprintf(f, " slot %s", sprint_time64(slot->min_delay, b1));
fprintf(f, " %s", sprint_time64(slot->max_delay, b1));
}
if (slot->max_packets)
fprintf(f, " packets %d", slot->max_packets);
if (slot->max_bytes)
fprintf(f, " bytes %d", slot->max_bytes);
}
if (ecn)
fprintf(f, " ecn ");
if (qopt.gap)
fprintf(f, " gap %lu", (unsigned long)qopt.gap);
return 0;
}
struct qdisc_util netem_qdisc_util = {
.id = "netem",
.parse_qopt = netem_parse_opt,
.print_qopt = netem_print_opt,
};