const struct ebt_802_3_info *info = par->matchinfo;
if (info->bitmask & ~EBT_802_3_MASK || info->invflags & ~EBT_802_3_MASK)
- return false;
+ return -EINVAL;
- return true;
+ return 0;
}
static struct xt_match ebt_802_3_mt_reg __read_mostly = {
pr_info("wrong size: %d against expected %d, rounded to %Zd\n",
em->match_size, expected_length,
EBT_ALIGN(expected_length));
- return false;
+ return -EINVAL;
}
if (wh_dst && (err = ebt_mac_wormhash_check_integrity(wh_dst))) {
pr_info("dst integrity fail: %x\n", -err);
- return false;
+ return -EINVAL;
}
if (wh_src && (err = ebt_mac_wormhash_check_integrity(wh_src))) {
pr_info("src integrity fail: %x\n", -err);
- return false;
+ return -EINVAL;
}
- return true;
+ return 0;
}
static struct xt_match ebt_among_mt_reg __read_mostly = {
if ((e->ethproto != htons(ETH_P_ARP) &&
e->ethproto != htons(ETH_P_RARP)) ||
e->invflags & EBT_IPROTO)
- return false;
+ return -EINVAL;
if (info->bitmask & ~EBT_ARP_MASK || info->invflags & ~EBT_ARP_MASK)
- return false;
- return true;
+ return -EINVAL;
+ return 0;
}
static struct xt_match ebt_arp_mt_reg __read_mostly = {
if (e->ethproto != htons(ETH_P_IP) ||
e->invflags & EBT_IPROTO)
- return false;
+ return -EINVAL;
if (info->bitmask & ~EBT_IP_MASK || info->invflags & ~EBT_IP_MASK)
- return false;
+ return -EINVAL;
if (info->bitmask & (EBT_IP_DPORT | EBT_IP_SPORT)) {
if (info->invflags & EBT_IP_PROTO)
- return false;
+ return -EINVAL;
if (info->protocol != IPPROTO_TCP &&
info->protocol != IPPROTO_UDP &&
info->protocol != IPPROTO_UDPLITE &&
info->protocol != IPPROTO_SCTP &&
info->protocol != IPPROTO_DCCP)
- return false;
+ return -EINVAL;
}
if (info->bitmask & EBT_IP_DPORT && info->dport[0] > info->dport[1])
- return false;
+ return -EINVAL;
if (info->bitmask & EBT_IP_SPORT && info->sport[0] > info->sport[1])
- return false;
- return true;
+ return -EINVAL;
+ return 0;
}
static struct xt_match ebt_ip_mt_reg __read_mostly = {
struct ebt_ip6_info *info = par->matchinfo;
if (e->ethproto != htons(ETH_P_IPV6) || e->invflags & EBT_IPROTO)
- return false;
+ return -EINVAL;
if (info->bitmask & ~EBT_IP6_MASK || info->invflags & ~EBT_IP6_MASK)
- return false;
+ return -EINVAL;
if (info->bitmask & (EBT_IP6_DPORT | EBT_IP6_SPORT)) {
if (info->invflags & EBT_IP6_PROTO)
- return false;
+ return -EINVAL;
if (info->protocol != IPPROTO_TCP &&
info->protocol != IPPROTO_UDP &&
info->protocol != IPPROTO_UDPLITE &&
info->protocol != IPPROTO_SCTP &&
info->protocol != IPPROTO_DCCP)
- return false;
+ return -EINVAL;
}
if (info->bitmask & EBT_IP6_DPORT && info->dport[0] > info->dport[1])
- return false;
+ return -EINVAL;
if (info->bitmask & EBT_IP6_SPORT && info->sport[0] > info->sport[1])
- return false;
- return true;
+ return -EINVAL;
+ return 0;
}
static struct xt_match ebt_ip6_mt_reg __read_mostly = {
user2credits(info->avg * info->burst) < user2credits(info->avg)) {
pr_info("overflow, try lower: %u/%u\n",
info->avg, info->burst);
- return false;
+ return -EINVAL;
}
/* User avg in seconds * EBT_LIMIT_SCALE: convert to jiffies * 128. */
info->credit = user2credits(info->avg * info->burst);
info->credit_cap = user2credits(info->avg * info->burst);
info->cost = user2credits(info->avg);
- return true;
+ return 0;
}
const struct ebt_mark_m_info *info = par->matchinfo;
if (info->bitmask & ~EBT_MARK_MASK)
- return false;
+ return -EINVAL;
if ((info->bitmask & EBT_MARK_OR) && (info->bitmask & EBT_MARK_AND))
- return false;
+ return -EINVAL;
if (!info->bitmask)
- return false;
- return true;
+ return -EINVAL;
+ return 0;
}
const struct ebt_pkttype_info *info = par->matchinfo;
if (info->invert != 0 && info->invert != 1)
- return false;
+ return -EINVAL;
/* Allow any pkt_type value */
- return true;
+ return 0;
}
static struct xt_match ebt_pkttype_mt_reg __read_mostly = {
if (info->bitmask & ~EBT_STP_MASK || info->invflags & ~EBT_STP_MASK ||
!(info->bitmask & EBT_STP_MASK))
- return false;
+ return -EINVAL;
/* Make sure the match only receives stp frames */
if (compare_ether_addr(e->destmac, bridge_ula) ||
compare_ether_addr(e->destmsk, msk) || !(e->bitmask & EBT_DESTMAC))
- return false;
+ return -EINVAL;
- return true;
+ return 0;
}
static struct xt_match ebt_stp_mt_reg __read_mostly = {
if (e->ethproto != htons(ETH_P_8021Q)) {
pr_debug("passed entry proto %2.4X is not 802.1Q (8100)\n",
ntohs(e->ethproto));
- return false;
+ return -EINVAL;
}
/* Check for bitmask range
if (info->bitmask & ~EBT_VLAN_MASK) {
pr_debug("bitmask %2X is out of mask (%2X)\n",
info->bitmask, EBT_VLAN_MASK);
- return false;
+ return -EINVAL;
}
/* Check for inversion flags range */
if (info->invflags & ~EBT_VLAN_MASK) {
pr_debug("inversion flags %2X is out of mask (%2X)\n",
info->invflags, EBT_VLAN_MASK);
- return false;
+ return -EINVAL;
}
/* Reserved VLAN ID (VID) values
if (info->id > VLAN_GROUP_ARRAY_LEN) {
pr_debug("id %d is out of range (1-4096)\n",
info->id);
- return false;
+ return -EINVAL;
}
/* Note: This is valid VLAN-tagged frame point.
* Any value of user_priority are acceptable,
if ((unsigned char) info->prio > 7) {
pr_debug("prio %d is out of range (0-7)\n",
info->prio);
- return false;
+ return -EINVAL;
}
}
/* Check for encapsulated proto range - it is possible to be
if ((unsigned short) ntohs(info->encap) < ETH_ZLEN) {
pr_debug("encap frame length %d is less than "
"minimal\n", ntohs(info->encap));
- return false;
+ return -EINVAL;
}
}
- return true;
+ return 0;
}
static struct xt_match ebt_vlan_mt_reg __read_mostly = {
const struct ipt_icmp *icmpinfo = par->matchinfo;
/* Must specify no unknown invflags */
- return !(icmpinfo->invflags & ~IPT_ICMP_INV);
+ return (icmpinfo->invflags & ~IPT_ICMP_INV) ? -EINVAL : 0;
}
/* The built-in targets: standard (NULL) and error. */
info->flags & IPT_ADDRTYPE_LIMIT_IFACE_OUT) {
pr_info("both incoming and outgoing "
"interface limitation cannot be selected\n");
- return false;
+ return -EINVAL;
}
if (par->hook_mask & ((1 << NF_INET_PRE_ROUTING) |
info->flags & IPT_ADDRTYPE_LIMIT_IFACE_OUT) {
pr_info("output interface limitation "
"not valid in PREROUTING and INPUT\n");
- return false;
+ return -EINVAL;
}
if (par->hook_mask & ((1 << NF_INET_POST_ROUTING) |
info->flags & IPT_ADDRTYPE_LIMIT_IFACE_IN) {
pr_info("input interface limitation "
"not valid in POSTROUTING and OUTPUT\n");
- return false;
+ return -EINVAL;
}
- return true;
+ return 0;
}
static struct xt_match addrtype_mt_reg[] __read_mostly = {
/* Must specify no unknown invflags */
if (ahinfo->invflags & ~IPT_AH_INV_MASK) {
pr_debug("unknown flags %X\n", ahinfo->invflags);
- return false;
+ return -EINVAL;
}
- return true;
+ return 0;
}
static struct xt_match ah_mt_reg __read_mostly = {
const struct ipt_ip *ip = par->entryinfo;
if (info->operation & IPT_ECN_OP_MATCH_MASK)
- return false;
+ return -EINVAL;
if (info->invert & IPT_ECN_OP_MATCH_MASK)
- return false;
+ return -EINVAL;
if (info->operation & (IPT_ECN_OP_MATCH_ECE|IPT_ECN_OP_MATCH_CWR) &&
ip->proto != IPPROTO_TCP) {
pr_info("cannot match TCP bits in rule for non-tcp packets\n");
- return false;
+ return -EINVAL;
}
- return true;
+ return 0;
}
static struct xt_match ecn_mt_reg __read_mostly = {
const struct ip6t_icmp *icmpinfo = par->matchinfo;
/* Must specify no unknown invflags */
- return !(icmpinfo->invflags & ~IP6T_ICMP_INV);
+ return (icmpinfo->invflags & ~IP6T_ICMP_INV) ? -EINVAL : 0;
}
/* The built-in targets: standard (NULL) and error. */
if (ahinfo->invflags & ~IP6T_AH_INV_MASK) {
pr_debug("unknown flags %X\n", ahinfo->invflags);
- return false;
+ return -EINVAL;
}
- return true;
+ return 0;
}
static struct xt_match ah_mt6_reg __read_mostly = {
if (fraginfo->invflags & ~IP6T_FRAG_INV_MASK) {
pr_debug("unknown flags %X\n", fraginfo->invflags);
- return false;
+ return -EINVAL;
}
- return true;
+ return 0;
}
static struct xt_match frag_mt6_reg __read_mostly = {
if (optsinfo->invflags & ~IP6T_OPTS_INV_MASK) {
pr_debug("unknown flags %X\n", optsinfo->invflags);
- return false;
+ return -EINVAL;
}
if (optsinfo->flags & IP6T_OPTS_NSTRICT) {
pr_debug("Not strict - not implemented");
- return false;
+ return -EINVAL;
}
- return true;
+ return 0;
}
static struct xt_match hbh_mt6_reg[] __read_mostly = {
/* invflags is 0 or 0xff in hard mode */
if ((!info->modeflag) && info->invflags != 0x00 &&
info->invflags != 0xFF)
- return false;
+ return -EINVAL;
- return true;
+ return 0;
}
static struct xt_match ipv6header_mt6_reg __read_mostly = {
const struct ip6t_mh *mhinfo = par->matchinfo;
/* Must specify no unknown invflags */
- return !(mhinfo->invflags & ~IP6T_MH_INV_MASK);
+ return (mhinfo->invflags & ~IP6T_MH_INV_MASK) ? -EINVAL : 0;
}
static struct xt_match mh_mt6_reg __read_mostly = {
if (rtinfo->invflags & ~IP6T_RT_INV_MASK) {
pr_debug("unknown flags %X\n", rtinfo->invflags);
- return false;
+ return -EINVAL;
}
if ((rtinfo->flags & (IP6T_RT_RES | IP6T_RT_FST_MASK)) &&
(!(rtinfo->flags & IP6T_RT_TYP) ||
(rtinfo->rt_type != 0) ||
(rtinfo->invflags & IP6T_RT_INV_TYP))) {
pr_debug("`--rt-type 0' required before `--rt-0-*'");
- return false;
+ return -EINVAL;
}
- return true;
+ return 0;
}
static struct xt_match rt_mt6_reg __read_mostly = {
int xt_check_match(struct xt_mtchk_param *par,
unsigned int size, u_int8_t proto, bool inv_proto)
{
+ int ret;
+
if (XT_ALIGN(par->match->matchsize) != size &&
par->match->matchsize != -1) {
/*
par->match->proto);
return -EINVAL;
}
- if (par->match->checkentry != NULL && !par->match->checkentry(par))
- return -EINVAL;
+ if (par->match->checkentry != NULL) {
+ ret = par->match->checkentry(par);
+ if (ret < 0)
+ return ret;
+ else if (ret > 0)
+ /* Flag up potential errors. */
+ return -EIO;
+ }
return 0;
}
EXPORT_SYMBOL_GPL(xt_check_match);
pr_info("you have exceeded the maximum "
"number of cluster nodes (%u > %u)\n",
info->total_nodes, XT_CLUSTER_NODES_MAX);
- return false;
+ return -EINVAL;
}
if (info->node_mask >= (1ULL << info->total_nodes)) {
pr_info("this node mask cannot be "
"higher than the total number of nodes\n");
- return false;
+ return -EINVAL;
}
- return true;
+ return 0;
}
static struct xt_match xt_cluster_match __read_mostly = {
if (sinfo->what != XT_CONNBYTES_PKTS &&
sinfo->what != XT_CONNBYTES_BYTES &&
sinfo->what != XT_CONNBYTES_AVGPKT)
- return false;
+ return -EINVAL;
if (sinfo->direction != XT_CONNBYTES_DIR_ORIGINAL &&
sinfo->direction != XT_CONNBYTES_DIR_REPLY &&
sinfo->direction != XT_CONNBYTES_DIR_BOTH)
- return false;
+ return -EINVAL;
if (nf_ct_l3proto_try_module_get(par->family) < 0) {
pr_info("cannot load conntrack support for proto=%u\n",
par->family);
- return false;
+ return -EINVAL;
}
- return true;
+ return 0;
}
static void connbytes_mt_destroy(const struct xt_mtdtor_param *par)
if (nf_ct_l3proto_try_module_get(par->family) < 0) {
pr_info("cannot load conntrack support for "
"address family %u\n", par->family);
- return false;
+ return -EINVAL;
}
/* init private data */
info->data = kmalloc(sizeof(struct xt_connlimit_data), GFP_KERNEL);
if (info->data == NULL) {
nf_ct_l3proto_module_put(par->family);
- return false;
+ return -EINVAL;
}
spin_lock_init(&info->data->lock);
for (i = 0; i < ARRAY_SIZE(info->data->iphash); ++i)
INIT_LIST_HEAD(&info->data->iphash[i]);
- return true;
+ return 0;
}
static void connlimit_mt_destroy(const struct xt_mtdtor_param *par)
if (nf_ct_l3proto_try_module_get(par->family) < 0) {
pr_info("cannot load conntrack support for proto=%u\n",
par->family);
- return false;
+ return -EINVAL;
}
- return true;
+ return 0;
}
static void connmark_tg_destroy(const struct xt_tgdtor_param *par)
if (nf_ct_l3proto_try_module_get(par->family) < 0) {
pr_info("cannot load conntrack support for proto=%u\n",
par->family);
- return false;
+ return -EINVAL;
}
- return true;
+ return 0;
}
static void connmark_mt_destroy(const struct xt_mtdtor_param *par)
if (nf_ct_l3proto_try_module_get(par->family) < 0) {
pr_info("cannot load conntrack support for proto=%u\n",
par->family);
- return false;
+ return -EINVAL;
}
- return true;
+ return 0;
}
static void conntrack_mt_destroy(const struct xt_mtdtor_param *par)
const struct xt_dccp_info *info = par->matchinfo;
if (info->flags & ~XT_DCCP_VALID_FLAGS)
- return false;
+ return -EINVAL;
if (info->invflags & ~XT_DCCP_VALID_FLAGS)
- return false;
+ return -EINVAL;
if (info->invflags & ~info->flags)
- return false;
- return true;
+ return -EINVAL;
+ return 0;
}
static struct xt_match dccp_mt_reg[] __read_mostly = {
if (info->dscp > XT_DSCP_MAX) {
pr_info("dscp %x out of range\n", info->dscp);
- return false;
+ return -EINVAL;
}
- return true;
+ return 0;
}
static bool tos_mt(const struct sk_buff *skb, const struct xt_match_param *par)
if (espinfo->invflags & ~XT_ESP_INV_MASK) {
pr_debug("unknown flags %X\n", espinfo->invflags);
- return false;
+ return -EINVAL;
}
- return true;
+ return 0;
}
static struct xt_match esp_mt_reg[] __read_mostly = {
user2credits(r->cfg.avg * r->cfg.burst) < user2credits(r->cfg.avg)) {
pr_info("overflow, try lower: %u/%u\n",
r->cfg.avg, r->cfg.burst);
- return false;
+ return -EINVAL;
}
if (r->cfg.mode == 0 ||
r->cfg.mode > (XT_HASHLIMIT_HASH_DPT |
XT_HASHLIMIT_HASH_DIP |
XT_HASHLIMIT_HASH_SIP |
XT_HASHLIMIT_HASH_SPT))
- return false;
+ return -EINVAL;
if (!r->cfg.gc_interval)
- return false;
+ return -EINVAL;
if (!r->cfg.expire)
- return false;
+ return -EINVAL;
if (r->name[sizeof(r->name) - 1] != '\0')
- return false;
+ return -EINVAL;
mutex_lock(&hashlimit_mutex);
r->hinfo = htable_find_get(net, r->name, par->family);
if (!r->hinfo && htable_create_v0(net, r, par->family) != 0) {
mutex_unlock(&hashlimit_mutex);
- return false;
+ return -EINVAL;
}
mutex_unlock(&hashlimit_mutex);
-
- return true;
+ return 0;
}
static int hashlimit_mt_check(const struct xt_mtchk_param *par)
user2credits(info->cfg.avg)) {
pr_info("overflow, try lower: %u/%u\n",
info->cfg.avg, info->cfg.burst);
- return false;
+ return -EINVAL;
}
if (info->cfg.gc_interval == 0 || info->cfg.expire == 0)
- return false;
+ return -EINVAL;
if (info->name[sizeof(info->name)-1] != '\0')
- return false;
+ return -EINVAL;
if (par->family == NFPROTO_IPV4) {
if (info->cfg.srcmask > 32 || info->cfg.dstmask > 32)
- return false;
+ return -EINVAL;
} else {
if (info->cfg.srcmask > 128 || info->cfg.dstmask > 128)
- return false;
+ return -EINVAL;
}
mutex_lock(&hashlimit_mutex);
info->hinfo = htable_find_get(net, info->name, par->family);
if (!info->hinfo && htable_create(net, info, par->family) != 0) {
mutex_unlock(&hashlimit_mutex);
- return false;
+ return -EINVAL;
}
mutex_unlock(&hashlimit_mutex);
- return true;
+ return 0;
}
static void
if (nf_ct_l3proto_try_module_get(par->family) < 0) {
pr_info("cannot load conntrack support for proto=%u\n",
par->family);
- return false;
+ return -EINVAL;
}
info->name[29] = '\0';
- return true;
+ return 0;
}
static void helper_mt_destroy(const struct xt_mtdtor_param *par)
|| user2credits(r->avg * r->burst) < user2credits(r->avg)) {
pr_info("Overflow, try lower: %u/%u\n",
r->avg, r->burst);
- return false;
+ return -EINVAL;
}
priv = kmalloc(sizeof(*priv), GFP_KERNEL);
if (priv == NULL)
- return false;
+ return -EINVAL;
/* For SMP, we only want to use one set of state. */
r->master = priv;
r->credit_cap = user2credits(r->avg * r->burst); /* Credits full. */
r->cost = user2credits(r->avg);
}
- return true;
+ return 0;
}
static void limit_mt_destroy(const struct xt_mtdtor_param *par)
if (!(info->bitmask & XT_PHYSDEV_OP_MASK) ||
info->bitmask & ~XT_PHYSDEV_OP_MASK)
- return false;
+ return -EINVAL;
if (info->bitmask & XT_PHYSDEV_OP_OUT &&
(!(info->bitmask & XT_PHYSDEV_OP_BRIDGED) ||
info->invert & XT_PHYSDEV_OP_BRIDGED) &&
"POSTROUTING chains for non-bridged traffic is not "
"supported anymore.\n");
if (par->hook_mask & (1 << NF_INET_LOCAL_OUT))
- return false;
+ return -EINVAL;
}
- return true;
+ return 0;
}
static struct xt_match physdev_mt_reg __read_mostly = {
if (!(info->flags & (XT_POLICY_MATCH_IN|XT_POLICY_MATCH_OUT))) {
pr_info("neither incoming nor outgoing policy selected\n");
- return false;
+ return -EINVAL;
}
if (par->hook_mask & ((1 << NF_INET_PRE_ROUTING) |
(1 << NF_INET_LOCAL_IN)) && info->flags & XT_POLICY_MATCH_OUT) {
pr_info("output policy not valid in PREROUTING and INPUT\n");
- return false;
+ return -EINVAL;
}
if (par->hook_mask & ((1 << NF_INET_POST_ROUTING) |
(1 << NF_INET_LOCAL_OUT)) && info->flags & XT_POLICY_MATCH_IN) {
pr_info("input policy not valid in POSTROUTING and OUTPUT\n");
- return false;
+ return -EINVAL;
}
if (info->len > XT_POLICY_MAX_ELEM) {
pr_info("too many policy elements\n");
- return false;
+ return -EINVAL;
}
- return true;
+ return 0;
}
static struct xt_match policy_mt_reg[] __read_mostly = {
struct xt_quota_info *q = par->matchinfo;
if (q->flags & ~XT_QUOTA_MASK)
- return false;
+ return -EINVAL;
q->master = kmalloc(sizeof(*q->master), GFP_KERNEL);
if (q->master == NULL)
- return false;
+ return -EINVAL;
q->master->quota = q->quota;
- return true;
+ return 0;
}
static void quota_mt_destroy(const struct xt_mtdtor_param *par)
info->est1 = est1;
info->est2 = est2;
- return true;
+ return 0;
err2:
xt_rateest_put(est1);
err1:
- return false;
+ return -EINVAL;
}
static void xt_rateest_mt_destroy(const struct xt_mtdtor_param *par)
struct proc_dir_entry *pde;
#endif
unsigned i;
- bool ret = false;
+ int ret = -EINVAL;
if (unlikely(!hash_rnd_inited)) {
get_random_bytes(&hash_rnd, sizeof(hash_rnd));
if (info->check_set & ~XT_RECENT_VALID_FLAGS) {
pr_info("Unsupported user space flags (%08x)\n",
info->check_set);
- return false;
+ return -EINVAL;
}
if (hweight8(info->check_set &
(XT_RECENT_SET | XT_RECENT_REMOVE |
XT_RECENT_CHECK | XT_RECENT_UPDATE)) != 1)
- return false;
+ return -EINVAL;
if ((info->check_set & (XT_RECENT_SET | XT_RECENT_REMOVE)) &&
(info->seconds || info->hit_count ||
(info->check_set & XT_RECENT_MODIFIERS)))
- return false;
+ return -EINVAL;
if ((info->check_set & XT_RECENT_REAP) && !info->seconds)
- return false;
+ return -EINVAL;
if (info->hit_count > ip_pkt_list_tot) {
pr_info("hitcount (%u) is larger than "
"packets to be remembered (%u)\n",
info->hit_count, ip_pkt_list_tot);
- return false;
+ return -EINVAL;
}
if (info->name[0] == '\0' ||
strnlen(info->name, XT_RECENT_NAME_LEN) == XT_RECENT_NAME_LEN)
- return false;
+ return -EINVAL;
mutex_lock(&recent_mutex);
t = recent_table_lookup(recent_net, info->name);
if (t != NULL) {
t->refcnt++;
- ret = true;
+ ret = 0;
goto out;
}
spin_lock_bh(&recent_lock);
list_add_tail(&t->list, &recent_net->tables);
spin_unlock_bh(&recent_lock);
- ret = true;
+ ret = 0;
out:
mutex_unlock(&recent_mutex);
return ret;
const struct xt_sctp_info *info = par->matchinfo;
if (info->flags & ~XT_SCTP_VALID_FLAGS)
- return false;
+ return -EINVAL;
if (info->invflags & ~XT_SCTP_VALID_FLAGS)
- return false;
+ return -EINVAL;
if (info->invflags & ~info->flags)
- return false;
+ return -EINVAL;
if (!(info->flags & XT_SCTP_CHUNK_TYPES))
- return true;
+ return 0;
if (info->chunk_match_type & (SCTP_CHUNK_MATCH_ALL |
SCTP_CHUNK_MATCH_ANY | SCTP_CHUNK_MATCH_ONLY))
- return true;
- return false;
+ return 0;
+ return -EINVAL;
}
static struct xt_match sctp_mt_reg[] __read_mostly = {
if (nf_ct_l3proto_try_module_get(par->family) < 0) {
pr_info("cannot load conntrack support for proto=%u\n",
par->family);
- return false;
+ return -EINVAL;
}
- return true;
+ return 0;
}
static void state_mt_destroy(const struct xt_mtdtor_param *par)
if (info->mode > XT_STATISTIC_MODE_MAX ||
info->flags & ~XT_STATISTIC_MASK)
- return false;
+ return -EINVAL;
info->master = kzalloc(sizeof(*info->master), GFP_KERNEL);
if (info->master == NULL)
- return false;
+ return -EINVAL;
info->master->count = info->u.nth.count;
- return true;
+ return 0;
}
static void statistic_mt_destroy(const struct xt_mtdtor_param *par)
/* Damn, can't handle this case properly with iptables... */
if (conf->from_offset > conf->to_offset)
- return false;
+ return -EINVAL;
if (conf->algo[XT_STRING_MAX_ALGO_NAME_SIZE - 1] != '\0')
- return false;
+ return -EINVAL;
if (conf->patlen > XT_STRING_MAX_PATTERN_SIZE)
- return false;
+ return -EINVAL;
if (par->match->revision == 1) {
if (conf->u.v1.flags &
~(XT_STRING_FLAG_IGNORECASE | XT_STRING_FLAG_INVERT))
- return false;
+ return -EINVAL;
if (conf->u.v1.flags & XT_STRING_FLAG_IGNORECASE)
flags |= TS_IGNORECASE;
}
ts_conf = textsearch_prepare(conf->algo, conf->pattern, conf->patlen,
GFP_KERNEL, flags);
if (IS_ERR(ts_conf))
- return false;
+ return -EINVAL;
conf->config = ts_conf;
-
- return true;
+ return 0;
}
static void string_mt_destroy(const struct xt_mtdtor_param *par)
const struct xt_tcp *tcpinfo = par->matchinfo;
/* Must specify no unknown invflags */
- return !(tcpinfo->invflags & ~XT_TCP_INV_MASK);
+ return (tcpinfo->invflags & ~XT_TCP_INV_MASK) ? -EINVAL : 0;
}
static bool udp_mt(const struct sk_buff *skb, const struct xt_match_param *par)
const struct xt_udp *udpinfo = par->matchinfo;
/* Must specify no unknown invflags */
- return !(udpinfo->invflags & ~XT_UDP_INV_MASK);
+ return (udpinfo->invflags & ~XT_UDP_INV_MASK) ? -EINVAL : 0;
}
static struct xt_match tcpudp_mt_reg[] __read_mostly = {
info->daytime_stop > XT_TIME_MAX_DAYTIME) {
pr_info("invalid argument - start or "
"stop time greater than 23:59:59\n");
- return false;
+ return -EINVAL;
}
- return true;
+ return 0;
}
static struct xt_match xt_time_mt_reg __read_mostly = {
git.openpandora.org / pandora-kernel.git / commitdiff