Release 4.14 net/sched/cls_flower.c
/*
* net/sched/cls_flower.c Flower classifier
*
* Copyright (c) 2015 Jiri Pirko <jiri@resnulli.us>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/rhashtable.h>
#include <linux/workqueue.h>
#include <linux/if_ether.h>
#include <linux/in6.h>
#include <linux/ip.h>
#include <linux/mpls.h>
#include <net/sch_generic.h>
#include <net/pkt_cls.h>
#include <net/ip.h>
#include <net/flow_dissector.h>
#include <net/dst.h>
#include <net/dst_metadata.h>
struct fl_flow_key {
int indev_ifindex;
struct flow_dissector_key_control control;
struct flow_dissector_key_control enc_control;
struct flow_dissector_key_basic basic;
struct flow_dissector_key_eth_addrs eth;
struct flow_dissector_key_vlan vlan;
union {
struct flow_dissector_key_ipv4_addrs ipv4;
struct flow_dissector_key_ipv6_addrs ipv6;
};
struct flow_dissector_key_ports tp;
struct flow_dissector_key_icmp icmp;
struct flow_dissector_key_arp arp;
struct flow_dissector_key_keyid enc_key_id;
union {
struct flow_dissector_key_ipv4_addrs enc_ipv4;
struct flow_dissector_key_ipv6_addrs enc_ipv6;
};
struct flow_dissector_key_ports enc_tp;
struct flow_dissector_key_mpls mpls;
struct flow_dissector_key_tcp tcp;
struct flow_dissector_key_ip ip;
} __aligned(BITS_PER_LONG / 8); /* Ensure that we can do comparisons as longs. */
struct fl_flow_mask_range {
unsigned short int start;
unsigned short int end;
};
struct fl_flow_mask {
struct fl_flow_key key;
struct fl_flow_mask_range range;
struct rcu_head rcu;
};
struct cls_fl_head {
struct rhashtable ht;
struct fl_flow_mask mask;
struct flow_dissector dissector;
bool mask_assigned;
struct list_head filters;
struct rhashtable_params ht_params;
union {
struct work_struct work;
struct rcu_head rcu;
};
struct idr handle_idr;
};
struct cls_fl_filter {
struct rhash_head ht_node;
struct fl_flow_key mkey;
struct tcf_exts exts;
struct tcf_result res;
struct fl_flow_key key;
struct list_head list;
u32 handle;
u32 flags;
union {
struct work_struct work;
struct rcu_head rcu;
};
struct net_device *hw_dev;
};
static unsigned short int fl_mask_range(const struct fl_flow_mask *mask)
{
return mask->range.end - mask->range.start;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jiri Pirko | 27 | 100.00% | 1 | 100.00% |
| Total | 27 | 100.00% | 1 | 100.00% |
static void fl_mask_update_range(struct fl_flow_mask *mask)
{
const u8 *bytes = (const u8 *) &mask->key;
size_t size = sizeof(mask->key);
size_t i, first = 0, last = size - 1;
for (i = 0; i < sizeof(mask->key); i++) {
if (bytes[i]) {
if (!first && i)
first = i;
last = i;
}
}
mask->range.start = rounddown(first, sizeof(long));
mask->range.end = roundup(last + 1, sizeof(long));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jiri Pirko | 127 | 100.00% | 1 | 100.00% |
| Total | 127 | 100.00% | 1 | 100.00% |
static void *fl_key_get_start(struct fl_flow_key *key,
const struct fl_flow_mask *mask)
{
return (u8 *) key + mask->range.start;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jiri Pirko | 31 | 100.00% | 1 | 100.00% |
| Total | 31 | 100.00% | 1 | 100.00% |
static void fl_set_masked_key(struct fl_flow_key *mkey, struct fl_flow_key *key,
struct fl_flow_mask *mask)
{
const long *lkey = fl_key_get_start(key, mask);
const long *lmask = fl_key_get_start(&mask->key, mask);
long *lmkey = fl_key_get_start(mkey, mask);
int i;
for (i = 0; i < fl_mask_range(mask); i += sizeof(long))
*lmkey++ = *lkey++ & *lmask++;
}
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| Person | Tokens | Prop | Commits | CommitProp |
| Jiri Pirko | 94 | 100.00% | 1 | 100.00% |
| Total | 94 | 100.00% | 1 | 100.00% |
static void fl_clear_masked_range(struct fl_flow_key *key,
struct fl_flow_mask *mask)
{
memset(fl_key_get_start(key, mask), 0, fl_mask_range(mask));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jiri Pirko | 33 | 100.00% | 1 | 100.00% |
| Total | 33 | 100.00% | 1 | 100.00% |
static struct cls_fl_filter *fl_lookup(struct cls_fl_head *head,
struct fl_flow_key *mkey)
{
return rhashtable_lookup_fast(&head->ht,
fl_key_get_start(mkey, &head->mask),
head->ht_params);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Paul Blakey | 41 | 100.00% | 1 | 100.00% |
| Total | 41 | 100.00% | 1 | 100.00% |
static int fl_classify(struct sk_buff *skb, const struct tcf_proto *tp,
struct tcf_result *res)
{
struct cls_fl_head *head = rcu_dereference_bh(tp->root);
struct cls_fl_filter *f;
struct fl_flow_key skb_key;
struct fl_flow_key skb_mkey;
struct ip_tunnel_info *info;
if (!atomic_read(&head->ht.nelems))
return -1;
fl_clear_masked_range(&skb_key, &head->mask);
info = skb_tunnel_info(skb);
if (info) {
struct ip_tunnel_key *key = &info->key;
switch (ip_tunnel_info_af(info)) {
case AF_INET:
skb_key.enc_control.addr_type =
FLOW_DISSECTOR_KEY_IPV4_ADDRS;
skb_key.enc_ipv4.src = key->u.ipv4.src;
skb_key.enc_ipv4.dst = key->u.ipv4.dst;
break;
case AF_INET6:
skb_key.enc_control.addr_type =
FLOW_DISSECTOR_KEY_IPV6_ADDRS;
skb_key.enc_ipv6.src = key->u.ipv6.src;
skb_key.enc_ipv6.dst = key->u.ipv6.dst;
break;
}
skb_key.enc_key_id.keyid = tunnel_id_to_key32(key->tun_id);
skb_key.enc_tp.src = key->tp_src;
skb_key.enc_tp.dst = key->tp_dst;
}
skb_key.indev_ifindex = skb->skb_iif;
/* skb_flow_dissect() does not set n_proto in case an unknown protocol,
* so do it rather here.
*/
skb_key.basic.n_proto = skb->protocol;
skb_flow_dissect(skb, &head->dissector, &skb_key, 0);
fl_set_masked_key(&skb_mkey, &skb_key, &head->mask);
f = fl_lookup(head, &skb_mkey);
if (f && !tc_skip_sw(f->flags)) {
*res = f->res;
return tcf_exts_exec(skb, &f->exts, res);
}
return -1;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jiri Pirko | 143 | 44.55% | 1 | 12.50% |
| Amir Vadai | 139 | 43.30% | 3 | 37.50% |
| Hadar Hen Zion | 20 | 6.23% | 1 | 12.50% |
| Paul Blakey | 17 | 5.30% | 2 | 25.00% |
| Tom Herbert | 2 | 0.62% | 1 | 12.50% |
| Total | 321 | 100.00% | 8 | 100.00% |
static int fl_init(struct tcf_proto *tp)
{
struct cls_fl_head *head;
head = kzalloc(sizeof(*head), GFP_KERNEL);
if (!head)
return -ENOBUFS;
INIT_LIST_HEAD_RCU(&head->filters);
rcu_assign_pointer(tp->root, head);
idr_init(&head->handle_idr);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jiri Pirko | 58 | 87.88% | 1 | 50.00% |
| Chris Mi | 8 | 12.12% | 1 | 50.00% |
| Total | 66 | 100.00% | 2 | 100.00% |
static void __fl_destroy_filter(struct cls_fl_filter *f)
{
tcf_exts_destroy(&f->exts);
tcf_exts_put_net(&f->exts);
kfree(f);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Américo Wang | 32 | 100.00% | 1 | 100.00% |
| Total | 32 | 100.00% | 1 | 100.00% |
static void fl_destroy_filter_work(struct work_struct *work)
{
struct cls_fl_filter *f = container_of(work, struct cls_fl_filter, work);
rtnl_lock();
__fl_destroy_filter(f);
rtnl_unlock();
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Américo Wang | 37 | 100.00% | 2 | 100.00% |
| Total | 37 | 100.00% | 2 | 100.00% |
static void fl_destroy_filter(struct rcu_head *head)
{
struct cls_fl_filter *f = container_of(head, struct cls_fl_filter, rcu);
INIT_WORK(&f->work, fl_destroy_filter_work);
tcf_queue_work(&f->work);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jiri Pirko | 36 | 81.82% | 1 | 50.00% |
| Américo Wang | 8 | 18.18% | 1 | 50.00% |
| Total | 44 | 100.00% | 2 | 100.00% |
static void fl_hw_destroy_filter(struct tcf_proto *tp, struct cls_fl_filter *f)
{
struct tc_cls_flower_offload cls_flower = {};
struct net_device *dev = f->hw_dev;
if (!tc_can_offload(dev))
return;
tc_cls_common_offload_init(&cls_flower.common, tp);
cls_flower.command = TC_CLSFLOWER_DESTROY;
cls_flower.cookie = (unsigned long) f;
cls_flower.egress_dev = f->hw_dev != tp->q->dev_queue->dev;
dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_CLSFLOWER, &cls_flower);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Amir Vadai | 44 | 45.83% | 1 | 12.50% |
| Hadar Hen Zion | 18 | 18.75% | 3 | 37.50% |
| Jiri Pirko | 18 | 18.75% | 3 | 37.50% |
| Or Gerlitz | 16 | 16.67% | 1 | 12.50% |
| Total | 96 | 100.00% | 8 | 100.00% |
static int fl_hw_replace_filter(struct tcf_proto *tp,
struct flow_dissector *dissector,
struct fl_flow_key *mask,
struct cls_fl_filter *f)
{
struct net_device *dev = tp->q->dev_queue->dev;
struct tc_cls_flower_offload cls_flower = {};
int err;
if (!tc_can_offload(dev)) {
if (tcf_exts_get_dev(dev, &f->exts, &f->hw_dev) ||
(f->hw_dev && !tc_can_offload(f->hw_dev))) {
f->hw_dev = dev;
return tc_skip_sw(f->flags) ? -EINVAL : 0;
}
dev = f->hw_dev;
cls_flower.egress_dev = true;
} else {
f->hw_dev = dev;
}
tc_cls_common_offload_init(&cls_flower.common, tp);
cls_flower.command = TC_CLSFLOWER_REPLACE;
cls_flower.cookie = (unsigned long) f;
cls_flower.dissector = dissector;
cls_flower.mask = mask;
cls_flower.key = &f->mkey;
cls_flower.exts = &f->exts;
err = dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_CLSFLOWER,
&cls_flower);
if (!err)
f->flags |= TCA_CLS_FLAGS_IN_HW;
if (tc_skip_sw(f->flags))
return err;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Amir Vadai | 113 | 49.34% | 2 | 16.67% |
| Hadar Hen Zion | 80 | 34.93% | 4 | 33.33% |
| Jiri Pirko | 24 | 10.48% | 4 | 33.33% |
| Or Gerlitz | 11 | 4.80% | 1 | 8.33% |
| Paul Blakey | 1 | 0.44% | 1 | 8.33% |
| Total | 229 | 100.00% | 12 | 100.00% |
static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f)
{
struct tc_cls_flower_offload cls_flower = {};
struct net_device *dev = f->hw_dev;
if (!tc_can_offload(dev))
return;
tc_cls_common_offload_init(&cls_flower.common, tp);
cls_flower.command = TC_CLSFLOWER_STATS;
cls_flower.cookie = (unsigned long) f;
cls_flower.exts = &f->exts;
cls_flower.egress_dev = f->hw_dev != tp->q->dev_queue->dev;
dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_CLSFLOWER,
&cls_flower);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Amir Vadai | 61 | 58.10% | 1 | 12.50% |
| Jiri Pirko | 19 | 18.10% | 4 | 50.00% |
| Or Gerlitz | 16 | 15.24% | 1 | 12.50% |
| Hadar Hen Zion | 9 | 8.57% | 2 | 25.00% |
| Total | 105 | 100.00% | 8 | 100.00% |
static void __fl_delete(struct tcf_proto *tp, struct cls_fl_filter *f)
{
struct cls_fl_head *head = rtnl_dereference(tp->root);
idr_remove_ext(&head->handle_idr, f->handle);
list_del_rcu(&f->list);
if (!tc_skip_hw(f->flags))
fl_hw_destroy_filter(tp, f);
tcf_unbind_filter(tp, &f->res);
if (tcf_exts_get_net(&f->exts))
call_rcu(&f->rcu, fl_destroy_filter);
else
__fl_destroy_filter(f);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Roi Dayan | 51 | 50.50% | 1 | 25.00% |
| Chris Mi | 24 | 23.76% | 1 | 25.00% |
| Américo Wang | 16 | 15.84% | 1 | 25.00% |
| Hadar Hen Zion | 10 | 9.90% | 1 | 25.00% |
| Total | 101 | 100.00% | 4 | 100.00% |
static void fl_destroy_sleepable(struct work_struct *work)
{
struct cls_fl_head *head = container_of(work, struct cls_fl_head,
work);
if (head->mask_assigned)
rhashtable_destroy(&head->ht);
kfree(head);
module_put(THIS_MODULE);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Daniel Borkmann | 50 | 100.00% | 1 | 100.00% |
| Total | 50 | 100.00% | 1 | 100.00% |
static void fl_destroy_rcu(struct rcu_head *rcu)
{
struct cls_fl_head *head = container_of(rcu, struct cls_fl_head, rcu);
INIT_WORK(&head->work, fl_destroy_sleepable);
schedule_work(&head->work);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Daniel Borkmann | 44 | 100.00% | 1 | 100.00% |
| Total | 44 | 100.00% | 1 | 100.00% |
static void fl_destroy(struct tcf_proto *tp)
{
struct cls_fl_head *head = rtnl_dereference(tp->root);
struct cls_fl_filter *f, *next;
list_for_each_entry_safe(f, next, &head->filters, list)
__fl_delete(tp, f);
idr_destroy(&head->handle_idr);
__module_get(THIS_MODULE);
call_rcu(&head->rcu, fl_destroy_rcu);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jiri Pirko | 50 | 70.42% | 1 | 14.29% |
| Chris Mi | 8 | 11.27% | 1 | 14.29% |
| Amir Vadai | 6 | 8.45% | 1 | 14.29% |
| Daniel Borkmann | 4 | 5.63% | 1 | 14.29% |
| Américo Wang | 1 | 1.41% | 1 | 14.29% |
| David S. Miller | 1 | 1.41% | 1 | 14.29% |
| Roi Dayan | 1 | 1.41% | 1 | 14.29% |
| Total | 71 | 100.00% | 7 | 100.00% |
static void *fl_get(struct tcf_proto *tp, u32 handle)
{
struct cls_fl_head *head = rtnl_dereference(tp->root);
return idr_find_ext(&head->handle_idr, handle);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jiri Pirko | 29 | 76.32% | 1 | 33.33% |
| Chris Mi | 7 | 18.42% | 1 | 33.33% |
| Américo Wang | 2 | 5.26% | 1 | 33.33% |
| Total | 38 | 100.00% | 3 | 100.00% |
static const struct nla_policy fl_policy[TCA_FLOWER_MAX + 1] = {
[TCA_FLOWER_UNSPEC] = { .type = NLA_UNSPEC },
[TCA_FLOWER_CLASSID] = { .type = NLA_U32 },
[TCA_FLOWER_INDEV] = { .type = NLA_STRING,
.len = IFNAMSIZ },
[TCA_FLOWER_KEY_ETH_DST] = { .len = ETH_ALEN },
[TCA_FLOWER_KEY_ETH_DST_MASK] = { .len = ETH_ALEN },
[TCA_FLOWER_KEY_ETH_SRC] = { .len = ETH_ALEN },
[TCA_FLOWER_KEY_ETH_SRC_MASK] = { .len = ETH_ALEN },
[TCA_FLOWER_KEY_ETH_TYPE] = { .type = NLA_U16 },
[TCA_FLOWER_KEY_IP_PROTO] = { .type = NLA_U8 },
[TCA_FLOWER_KEY_IPV4_SRC] = { .type = NLA_U32 },
[TCA_FLOWER_KEY_IPV4_SRC_MASK] = { .type = NLA_U32 },
[TCA_FLOWER_KEY_IPV4_DST] = { .type = NLA_U32 },
[TCA_FLOWER_KEY_IPV4_DST_MASK] = { .type = NLA_U32 },
[TCA_FLOWER_KEY_IPV6_SRC] = { .len = sizeof(struct in6_addr) },
[TCA_FLOWER_KEY_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) },
[TCA_FLOWER_KEY_IPV6_DST] = { .len = sizeof(struct in6_addr) },
[TCA_FLOWER_KEY_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) },
[TCA_FLOWER_KEY_TCP_SRC] = { .type = NLA_U16 },
[TCA_FLOWER_KEY_TCP_DST] = { .type = NLA_U16 },
[TCA_FLOWER_KEY_UDP_SRC] = { .type = NLA_U16 },
[TCA_FLOWER_KEY_UDP_DST] = { .type = NLA_U16 },
[TCA_FLOWER_KEY_VLAN_ID] = { .type = NLA_U16 },
[TCA_FLOWER_KEY_VLAN_PRIO] = { .type = NLA_U8 },
[TCA_FLOWER_KEY_VLAN_ETH_TYPE] = { .type = NLA_U16 },
[TCA_FLOWER_KEY_ENC_KEY_ID] = { .type = NLA_U32 },
[TCA_FLOWER_KEY_ENC_IPV4_SRC] = { .type = NLA_U32 },
[TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK] = { .type = NLA_U32 },
[TCA_FLOWER_KEY_ENC_IPV4_DST] = { .type = NLA_U32 },
[TCA_FLOWER_KEY_ENC_IPV4_DST_MASK] = { .type = NLA_U32 },
[TCA_FLOWER_KEY_ENC_IPV6_SRC] = { .len = sizeof(struct in6_addr) },
[TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) },
[TCA_FLOWER_KEY_ENC_IPV6_DST] = { .len = sizeof(struct in6_addr) },
[TCA_FLOWER_KEY_ENC_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) },
[TCA_FLOWER_KEY_TCP_SRC_MASK] = { .type = NLA_U16 },
[TCA_FLOWER_KEY_TCP_DST_MASK] = { .type = NLA_U16 },
[TCA_FLOWER_KEY_UDP_SRC_MASK] = { .type = NLA_U16 },
[TCA_FLOWER_KEY_UDP_DST_MASK] = { .type = NLA_U16 },
[TCA_FLOWER_KEY_SCTP_SRC_MASK] = { .type = NLA_U16 },
[TCA_FLOWER_KEY_SCTP_DST_MASK] = { .type = NLA_U16 },
[TCA_FLOWER_KEY_SCTP_SRC] = { .type = NLA_U16 },
[TCA_FLOWER_KEY_SCTP_DST] = { .type = NLA_U16 },
[TCA_FLOWER_KEY_ENC_UDP_SRC_PORT] = { .type = NLA_U16 },
[TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK] = { .type = NLA_U16 },
[TCA_FLOWER_KEY_ENC_UDP_DST_PORT] = { .type = NLA_U16 },
[TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK] = { .type = NLA_U16 },
[TCA_FLOWER_KEY_FLAGS] = { .type = NLA_U32 },
[TCA_FLOWER_KEY_FLAGS_MASK] = { .type = NLA_U32 },
[TCA_FLOWER_KEY_ICMPV4_TYPE] = { .type = NLA_U8 },
[TCA_FLOWER_KEY_ICMPV4_TYPE_MASK] = { .type = NLA_U8 },
[TCA_FLOWER_KEY_ICMPV4_CODE] = { .type = NLA_U8 },
[TCA_FLOWER_KEY_ICMPV4_CODE_MASK] = { .type = NLA_U8 },
[TCA_FLOWER_KEY_ICMPV6_TYPE] = { .type = NLA_U8 },
[TCA_FLOWER_KEY_ICMPV6_TYPE_MASK] = { .type = NLA_U8 },
[TCA_FLOWER_KEY_ICMPV6_CODE] = { .type = NLA_U8 },
[TCA_FLOWER_KEY_ICMPV6_CODE_MASK] = { .type = NLA_U8 },
[TCA_FLOWER_KEY_ARP_SIP] = { .type = NLA_U32 },
[TCA_FLOWER_KEY_ARP_SIP_MASK] = { .type = NLA_U32 },
[TCA_FLOWER_KEY_ARP_TIP] = { .type = NLA_U32 },
[TCA_FLOWER_KEY_ARP_TIP_MASK] = { .type = NLA_U32 },
[TCA_FLOWER_KEY_ARP_OP] = { .type = NLA_U8 },
[TCA_FLOWER_KEY_ARP_OP_MASK] = { .type = NLA_U8 },
[TCA_FLOWER_KEY_ARP_SHA] = { .len = ETH_ALEN },
[TCA_FLOWER_KEY_ARP_SHA_MASK] = { .len = ETH_ALEN },
[TCA_FLOWER_KEY_ARP_THA] = { .len = ETH_ALEN },
[TCA_FLOWER_KEY_ARP_THA_MASK] = { .len = ETH_ALEN },
[TCA_FLOWER_KEY_MPLS_TTL] = { .type = NLA_U8 },
[TCA_FLOWER_KEY_MPLS_BOS] = { .type = NLA_U8 },
[TCA_FLOWER_KEY_MPLS_TC] = { .type = NLA_U8 },
[TCA_FLOWER_KEY_MPLS_LABEL] = { .type = NLA_U32 },
[TCA_FLOWER_KEY_TCP_FLAGS] = { .type = NLA_U16 },
[TCA_FLOWER_KEY_TCP_FLAGS_MASK] = { .type = NLA_U16 },
[TCA_FLOWER_KEY_IP_TOS] = { .type = NLA_U8 },
[TCA_FLOWER_KEY_IP_TOS_MASK] = { .type = NLA_U8 },
[TCA_FLOWER_KEY_IP_TTL] = { .type = NLA_U8 },
[TCA_FLOWER_KEY_IP_TTL_MASK] = { .type = NLA_U8 },
};
static void fl_set_key_val(struct nlattr **tb,
void *val, int val_type,
void *mask, int mask_type, int len)
{
if (!tb[val_type])
return;
memcpy(val, nla_data(tb[val_type]), len);
if (mask_type == TCA_FLOWER_UNSPEC || !tb[mask_type])
memset(mask, 0xff, len);
else
memcpy(mask, nla_data(tb[mask_type]), len);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jiri Pirko | 90 | 100.00% | 1 | 100.00% |
| Total | 90 | 100.00% | 1 | 100.00% |
static int fl_set_key_mpls(struct nlattr **tb,
struct flow_dissector_key_mpls *key_val,
struct flow_dissector_key_mpls *key_mask)
{
if (tb[TCA_FLOWER_KEY_MPLS_TTL]) {
key_val->mpls_ttl = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TTL]);
key_mask->mpls_ttl = MPLS_TTL_MASK;
}
if (tb[TCA_FLOWER_KEY_MPLS_BOS]) {
u8 bos = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_BOS]);
if (bos & ~MPLS_BOS_MASK)
return -EINVAL;
key_val->mpls_bos = bos;
key_mask->mpls_bos = MPLS_BOS_MASK;
}
if (tb[TCA_FLOWER_KEY_MPLS_TC]) {
u8 tc = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TC]);
if (tc & ~MPLS_TC_MASK)
return -EINVAL;
key_val->mpls_tc = tc;
key_mask->mpls_tc = MPLS_TC_MASK;
}
if (tb[TCA_FLOWER_KEY_MPLS_LABEL]) {
u32 label = nla_get_u32(tb[TCA_FLOWER_KEY_MPLS_LABEL]);
if (label & ~MPLS_LABEL_MASK)
return -EINVAL;
key_val->mpls_label = label;
key_mask->mpls_label = MPLS_LABEL_MASK;
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Benjamin LaHaise | 181 | 100.00% | 2 | 100.00% |
| Total | 181 | 100.00% | 2 | 100.00% |
static void fl_set_key_vlan(struct nlattr **tb,
struct flow_dissector_key_vlan *key_val,
struct flow_dissector_key_vlan *key_mask)