Release 4.11 net/ipv4/inet_diag.c
/*
* inet_diag.c Module for monitoring INET transport protocols sockets.
*
* Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
*
* 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/module.h>
#include <linux/types.h>
#include <linux/fcntl.h>
#include <linux/random.h>
#include <linux/slab.h>
#include <linux/cache.h>
#include <linux/init.h>
#include <linux/time.h>
#include <net/icmp.h>
#include <net/tcp.h>
#include <net/ipv6.h>
#include <net/inet_common.h>
#include <net/inet_connection_sock.h>
#include <net/inet_hashtables.h>
#include <net/inet_timewait_sock.h>
#include <net/inet6_hashtables.h>
#include <net/netlink.h>
#include <linux/inet.h>
#include <linux/stddef.h>
#include <linux/inet_diag.h>
#include <linux/sock_diag.h>
static const struct inet_diag_handler **inet_diag_table;
struct inet_diag_entry {
const __be32 *saddr;
const __be32 *daddr;
u16 sport;
u16 dport;
u16 family;
u16 userlocks;
u32 ifindex;
u32 mark;
};
static DEFINE_MUTEX(inet_diag_table_mutex);
static const struct inet_diag_handler *inet_diag_lock_handler(int proto)
{
if (!inet_diag_table[proto])
request_module("net-pf-%d-proto-%d-type-%d-%d", PF_NETLINK,
NETLINK_SOCK_DIAG, AF_INET, proto);
mutex_lock(&inet_diag_table_mutex);
if (!inet_diag_table[proto])
return ERR_PTR(-ENOENT);
return inet_diag_table[proto];
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 51 | 85.00% | 1 | 25.00% |
Pavel Emelyanov | 9 | 15.00% | 3 | 75.00% |
Total | 60 | 100.00% | 4 | 100.00% |
static void inet_diag_unlock_handler(const struct inet_diag_handler *handler)
{
mutex_unlock(&inet_diag_table_mutex);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 18 | 100.00% | 1 | 100.00% |
Total | 18 | 100.00% | 1 | 100.00% |
void inet_diag_msg_common_fill(struct inet_diag_msg *r, struct sock *sk)
{
r->idiag_family = sk->sk_family;
r->id.idiag_sport = htons(sk->sk_num);
r->id.idiag_dport = sk->sk_dport;
r->id.idiag_if = sk->sk_bound_dev_if;
sock_diag_save_cookie(sk, r->id.idiag_cookie);
#if IS_ENABLED(CONFIG_IPV6)
if (sk->sk_family == AF_INET6) {
*(struct in6_addr *)r->id.idiag_src = sk->sk_v6_rcv_saddr;
*(struct in6_addr *)r->id.idiag_dst = sk->sk_v6_daddr;
} else
#endif
{
memset(&r->id.idiag_src, 0, sizeof(r->id.idiag_src));
memset(&r->id.idiag_dst, 0, sizeof(r->id.idiag_dst));
r->id.idiag_src[0] = sk->sk_rcv_saddr;
r->id.idiag_dst[0] = sk->sk_daddr;
}
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Eric Dumazet | 188 | 100.00% | 1 | 100.00% |
Total | 188 | 100.00% | 1 | 100.00% |
EXPORT_SYMBOL_GPL(inet_diag_msg_common_fill);
static size_t inet_sk_attr_size(void)
{
return nla_total_size(sizeof(struct tcp_info))
+ nla_total_size(1) /* INET_DIAG_SHUTDOWN */
+ nla_total_size(1) /* INET_DIAG_TOS */
+ nla_total_size(1) /* INET_DIAG_TCLASS */
+ nla_total_size(4) /* INET_DIAG_MARK */
+ nla_total_size(sizeof(struct inet_diag_meminfo))
+ nla_total_size(sizeof(struct inet_diag_msg))
+ nla_total_size(SK_MEMINFO_VARS * sizeof(u32))
+ nla_total_size(TCP_CA_NAME_MAX)
+ nla_total_size(sizeof(struct tcpvegas_info))
+ 64;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Eric Dumazet | 80 | 93.02% | 1 | 50.00% |
Lorenzo Colitti | 6 | 6.98% | 1 | 50.00% |
Total | 86 | 100.00% | 2 | 100.00% |
int inet_diag_msg_attrs_fill(struct sock *sk, struct sk_buff *skb,
struct inet_diag_msg *r, int ext,
struct user_namespace *user_ns,
bool net_admin)
{
const struct inet_sock *inet = inet_sk(sk);
if (nla_put_u8(skb, INET_DIAG_SHUTDOWN, sk->sk_shutdown))
goto errout;
/* IPv6 dual-stack sockets use inet->tos for IPv4 connections,
* hence this needs to be included regardless of socket family.
*/
if (ext & (1 << (INET_DIAG_TOS - 1)))
if (nla_put_u8(skb, INET_DIAG_TOS, inet->tos) < 0)
goto errout;
#if IS_ENABLED(CONFIG_IPV6)
if (r->idiag_family == AF_INET6) {
if (ext & (1 << (INET_DIAG_TCLASS - 1)))
if (nla_put_u8(skb, INET_DIAG_TCLASS,
inet6_sk(sk)->tclass) < 0)
goto errout;
if (((1 << sk->sk_state) & (TCPF_LISTEN | TCPF_CLOSE)) &&
nla_put_u8(skb, INET_DIAG_SKV6ONLY, ipv6_only_sock(sk)))
goto errout;
}
#endif
if (net_admin && nla_put_u32(skb, INET_DIAG_MARK, sk->sk_mark))
goto errout;
r->idiag_uid = from_kuid_munged(user_ns, sock_i_uid(sk));
r->idiag_inode = sock_i_ino(sk);
return 0;
errout:
return 1;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Pavel Emelyanov | 36 | 15.93% | 3 | 13.04% |
Phil Sutter | 33 | 14.60% | 2 | 8.70% |
Maciej Żenczykowski | 26 | 11.50% | 2 | 8.70% |
Lorenzo Colitti | 21 | 9.29% | 1 | 4.35% |
Murali Raja | 20 | 8.85% | 1 | 4.35% |
Thomas Graf | 18 | 7.96% | 1 | 4.35% |
Stephen Hemminger | 17 | 7.52% | 1 | 4.35% |
Xin Long | 15 | 6.64% | 1 | 4.35% |
Arnaldo Carvalho de Melo | 12 | 5.31% | 5 | 21.74% |
Eric W. Biedermann | 9 | 3.98% | 1 | 4.35% |
David S. Miller | 9 | 3.98% | 2 | 8.70% |
Eric Dumazet | 5 | 2.21% | 2 | 8.70% |
Linus Torvalds | 5 | 2.21% | 1 | 4.35% |
Total | 226 | 100.00% | 23 | 100.00% |
EXPORT_SYMBOL_GPL(inet_diag_msg_attrs_fill);
int inet_sk_diag_fill(struct sock *sk, struct inet_connection_sock *icsk,
struct sk_buff *skb, const struct inet_diag_req_v2 *req,
struct user_namespace *user_ns,
u32 portid, u32 seq, u16 nlmsg_flags,
const struct nlmsghdr *unlh,
bool net_admin)
{
const struct tcp_congestion_ops *ca_ops;
const struct inet_diag_handler *handler;
int ext = req->idiag_ext;
struct inet_diag_msg *r;
struct nlmsghdr *nlh;
struct nlattr *attr;
void *info = NULL;
handler = inet_diag_table[req->sdiag_protocol];
BUG_ON(!handler);
nlh = nlmsg_put(skb, portid, seq, unlh->nlmsg_type, sizeof(*r),
nlmsg_flags);
if (!nlh)
return -EMSGSIZE;
r = nlmsg_data(nlh);
BUG_ON(!sk_fullsock(sk));
inet_diag_msg_common_fill(r, sk);
r->idiag_state = sk->sk_state;
r->idiag_timer = 0;
r->idiag_retrans = 0;
if (inet_diag_msg_attrs_fill(sk, skb, r, ext, user_ns, net_admin))
goto errout;
if (ext & (1 << (INET_DIAG_MEMINFO - 1))) {
struct inet_diag_meminfo minfo = {
.idiag_rmem = sk_rmem_alloc_get(sk),
.idiag_wmem = sk->sk_wmem_queued,
.idiag_fmem = sk->sk_forward_alloc,
.idiag_tmem = sk_wmem_alloc_get(sk),
};
if (nla_put(skb, INET_DIAG_MEMINFO, sizeof(minfo), &minfo) < 0)
goto errout;
}
if (ext & (1 << (INET_DIAG_SKMEMINFO - 1)))
if (sock_diag_put_meminfo(sk, skb, INET_DIAG_SKMEMINFO))
goto errout;
/*
* RAW sockets might have user-defined protocols assigned,
* so report the one supplied on socket creation.
*/
if (sk->sk_type == SOCK_RAW) {
if (nla_put_u8(skb, INET_DIAG_PROTOCOL, sk->sk_protocol))
goto errout;
}
if (!icsk) {
handler->idiag_get_info(sk, r, NULL);
goto out;
}
if (icsk->icsk_pending == ICSK_TIME_RETRANS ||
icsk->icsk_pending == ICSK_TIME_REO_TIMEOUT ||
icsk->icsk_pending == ICSK_TIME_LOSS_PROBE) {
r->idiag_timer = 1;
r->idiag_retrans = icsk->icsk_retransmits;
r->idiag_expires =
jiffies_to_msecs(icsk->icsk_timeout - jiffies);
} else if (icsk->icsk_pending == ICSK_TIME_PROBE0) {
r->idiag_timer = 4;
r->idiag_retrans = icsk->icsk_probes_out;
r->idiag_expires =
jiffies_to_msecs(icsk->icsk_timeout - jiffies);
} else if (timer_pending(&sk->sk_timer)) {
r->idiag_timer = 2;
r->idiag_retrans = icsk->icsk_probes_out;
r->idiag_expires =
jiffies_to_msecs(sk->sk_timer.expires - jiffies);
} else {
r->idiag_timer = 0;
r->idiag_expires = 0;
}
if ((ext & (1 << (INET_DIAG_INFO - 1))) && handler->idiag_info_size) {
attr = nla_reserve_64bit(skb, INET_DIAG_INFO,
handler->idiag_info_size,
INET_DIAG_PAD);
if (!attr)
goto errout;
info = nla_data(attr);
}
if (ext & (1 << (INET_DIAG_CONG - 1))) {
int err = 0;
rcu_read_lock();
ca_ops = READ_ONCE(icsk->icsk_ca_ops);
if (ca_ops)
err = nla_put_string(skb, INET_DIAG_CONG, ca_ops->name);
rcu_read_unlock();
if (err < 0)
goto errout;
}
handler->idiag_get_info(sk, r, info);
if (sk->sk_state < TCP_TIME_WAIT) {
union tcp_cc_info info;
size_t sz = 0;
int attr;
rcu_read_lock();
ca_ops = READ_ONCE(icsk->icsk_ca_ops);
if (ca_ops && ca_ops->get_info)
sz = ca_ops->get_info(sk, ext, &attr, &info);
rcu_read_unlock();
if (sz && nla_put(skb, attr, sz, &info) < 0)
goto errout;
}
out:
nlmsg_end(skb, nlh);
return 0;
errout:
nlmsg_cancel(skb, nlh);
return -EMSGSIZE;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Xin Long | 202 | 27.82% | 2 | 6.90% |
Pavel Emelyanov | 107 | 14.74% | 2 | 6.90% |
Eric Dumazet | 90 | 12.40% | 3 | 10.34% |
Stephen Hemminger | 89 | 12.26% | 5 | 17.24% |
Thomas Graf | 80 | 11.02% | 1 | 3.45% |
Linus Torvalds | 49 | 6.75% | 1 | 3.45% |
Arnaldo Carvalho de Melo | 41 | 5.65% | 6 | 20.69% |
Cyrill V. Gorcunov | 27 | 3.72% | 1 | 3.45% |
Craig Gallek | 9 | 1.24% | 1 | 3.45% |
Shan Wei | 8 | 1.10% | 1 | 3.45% |
Nandita Dukkipati | 6 | 0.83% | 1 | 3.45% |
Yuchung Cheng | 6 | 0.83% | 1 | 3.45% |
Lorenzo Colitti | 5 | 0.69% | 1 | 3.45% |
Johannes Berg | 3 | 0.41% | 1 | 3.45% |
Nicolas Dichtel | 3 | 0.41% | 1 | 3.45% |
Patrick McHardy | 1 | 0.14% | 1 | 3.45% |
Total | 726 | 100.00% | 29 | 100.00% |
EXPORT_SYMBOL_GPL(inet_sk_diag_fill);
static int inet_csk_diag_fill(struct sock *sk,
struct sk_buff *skb,
const struct inet_diag_req_v2 *req,
struct user_namespace *user_ns,
u32 portid, u32 seq, u16 nlmsg_flags,
const struct nlmsghdr *unlh,
bool net_admin)
{
return inet_sk_diag_fill(sk, inet_csk(sk), skb, req, user_ns,
portid, seq, nlmsg_flags, unlh, net_admin);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Pavel Emelyanov | 57 | 79.17% | 2 | 33.33% |
Eric W. Biedermann | 9 | 12.50% | 2 | 33.33% |
Lorenzo Colitti | 5 | 6.94% | 1 | 16.67% |
Eric Dumazet | 1 | 1.39% | 1 | 16.67% |
Total | 72 | 100.00% | 6 | 100.00% |
static int inet_twsk_diag_fill(struct sock *sk,
struct sk_buff *skb,
u32 portid, u32 seq, u16 nlmsg_flags,
const struct nlmsghdr *unlh)
{
struct inet_timewait_sock *tw = inet_twsk(sk);
struct inet_diag_msg *r;
struct nlmsghdr *nlh;
long tmo;
nlh = nlmsg_put(skb, portid, seq, unlh->nlmsg_type, sizeof(*r),
nlmsg_flags);
if (!nlh)
return -EMSGSIZE;
r = nlmsg_data(nlh);
BUG_ON(tw->tw_state != TCP_TIME_WAIT);
tmo = tw->tw_timer.expires - jiffies;
if (tmo < 0)
tmo = 0;
inet_diag_msg_common_fill(r, sk);
r->idiag_retrans = 0;
r->idiag_state = tw->tw_substate;
r->idiag_timer = 3;
r->idiag_expires = jiffies_to_msecs(tmo);
r->idiag_rqueue = 0;
r->idiag_wqueue = 0;
r->idiag_uid = 0;
r->idiag_inode = 0;
nlmsg_end(skb, nlh);
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Arnaldo Carvalho de Melo | 124 | 64.58% | 2 | 14.29% |
Eric Dumazet | 28 | 14.58% | 5 | 35.71% |
David S. Miller | 12 | 6.25% | 1 | 7.14% |
Thomas Graf | 8 | 4.17% | 1 | 7.14% |
Linus Torvalds | 8 | 4.17% | 1 | 7.14% |
Daniel Borkmann | 5 | 2.60% | 1 | 7.14% |
Johannes Berg | 3 | 1.56% | 1 | 7.14% |
Ilpo Järvinen | 2 | 1.04% | 1 | 7.14% |
Eric W. Biedermann | 2 | 1.04% | 1 | 7.14% |
Total | 192 | 100.00% | 14 | 100.00% |
static int inet_req_diag_fill(struct sock *sk, struct sk_buff *skb,
u32 portid, u32 seq, u16 nlmsg_flags,
const struct nlmsghdr *unlh, bool net_admin)
{
struct request_sock *reqsk = inet_reqsk(sk);
struct inet_diag_msg *r;
struct nlmsghdr *nlh;
long tmo;
nlh = nlmsg_put(skb, portid, seq, unlh->nlmsg_type, sizeof(*r),
nlmsg_flags);
if (!nlh)
return -EMSGSIZE;
r = nlmsg_data(nlh);
inet_diag_msg_common_fill(r, sk);
r->idiag_state = TCP_SYN_RECV;
r->idiag_timer = 1;
r->idiag_retrans = reqsk->num_retrans;
BUILD_BUG_ON(offsetof(struct inet_request_sock, ir_cookie) !=
offsetof(struct sock, sk_cookie));
tmo = inet_reqsk(sk)->rsk_timer.expires - jiffies;
r->idiag_expires = (tmo >= 0) ? jiffies_to_msecs(tmo) : 0;
r->idiag_rqueue = 0;
r->idiag_wqueue = 0;
r->idiag_uid = 0;
r->idiag_inode = 0;
if (net_admin && nla_put_u32(skb, INET_DIAG_MARK,
inet_rsk(reqsk)->ir_mark))
return -EMSGSIZE;
nlmsg_end(skb, nlh);
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Eric Dumazet | 192 | 84.21% | 2 | 66.67% |
Lorenzo Colitti | 36 | 15.79% | 1 | 33.33% |
Total | 228 | 100.00% | 3 | 100.00% |
static int sk_diag_fill(struct sock *sk, struct sk_buff *skb,
const struct inet_diag_req_v2 *r,
struct user_namespace *user_ns,
u32 portid, u32 seq, u16 nlmsg_flags,
const struct nlmsghdr *unlh, bool net_admin)
{
if (sk->sk_state == TCP_TIME_WAIT)
return inet_twsk_diag_fill(sk, skb, portid, seq,
nlmsg_flags, unlh);
if (sk->sk_state == TCP_NEW_SYN_RECV)
return inet_req_diag_fill(sk, skb, portid, seq,
nlmsg_flags, unlh, net_admin);
return inet_csk_diag_fill(sk, skb, r, user_ns, portid, seq,
nlmsg_flags, unlh, net_admin);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Arnaldo Carvalho de Melo | 71 | 60.68% | 1 | 12.50% |
Eric Dumazet | 24 | 20.51% | 2 | 25.00% |
Eric W. Biedermann | 10 | 8.55% | 2 | 25.00% |
Lorenzo Colitti | 7 | 5.98% | 1 | 12.50% |
Pavel Emelyanov | 5 | 4.27% | 2 | 25.00% |
Total | 117 | 100.00% | 8 | 100.00% |
struct sock *inet_diag_find_one_icsk(struct net *net,
struct inet_hashinfo *hashinfo,
const struct inet_diag_req_v2 *req)
{
struct sock *sk;
rcu_read_lock();
if (req->sdiag_family == AF_INET)
sk = inet_lookup(net, hashinfo, NULL, 0, req->id.idiag_dst[0],
req->id.idiag_dport, req->id.idiag_src[0],
req->id.idiag_sport, req->id.idiag_if);
#if IS_ENABLED(CONFIG_IPV6)
else if (req->sdiag_family == AF_INET6) {
if (ipv6_addr_v4mapped((struct in6_addr *)req->id.idiag_dst) &&
ipv6_addr_v4mapped((struct in6_addr *)req->id.idiag_src))
sk = inet_lookup(net, hashinfo, NULL, 0, req->id.idiag_dst[3],
req->id.idiag_dport, req->id.idiag_src[3],
req->id.idiag_sport, req->id.idiag_if);
else
sk = inet6_lookup(net, hashinfo, NULL, 0,
(struct in6_addr *)req->id.idiag_dst,
req->id.idiag_dport,
(struct in6_addr *)req->id.idiag_src,
req->id.idiag_sport,
req->id.idiag_if);
}
#endif
else {
rcu_read_unlock();
return ERR_PTR(-EINVAL);
}
rcu_read_unlock();
if (!sk)
return ERR_PTR(-ENOENT);
if (sock_diag_check_cookie(sk, req->id.idiag_cookie)) {
sock_gen_put(sk);
return ERR_PTR(-ENOENT);
}
return sk;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Linus Torvalds | 95 | 31.88% | 1 | 4.17% |
Eric Dumazet | 94 | 31.54% | 5 | 20.83% |
Lorenzo Colitti | 41 | 13.76% | 1 | 4.17% |
Arnaldo Carvalho de Melo | 29 | 9.73% | 5 | 20.83% |
Pavel Emelyanov | 18 | 6.04% | 7 | 29.17% |
Craig Gallek | 12 | 4.03% | 1 | 4.17% |
David S. Miller | 4 | 1.34% | 2 | 8.33% |
Andrey Vagin | 4 | 1.34% | 1 | 4.17% |
Herbert Xu | 1 | 0.34% | 1 | 4.17% |
Total | 298 | 100.00% | 24 | 100.00% |
EXPORT_SYMBOL_GPL(inet_diag_find_one_icsk);
int inet_diag_dump_one_icsk(struct inet_hashinfo *hashinfo,
struct sk_buff *in_skb,
const struct nlmsghdr *nlh,
const struct inet_diag_req_v2 *req)
{
struct net *net = sock_net(in_skb->sk);
struct sk_buff *rep;
struct sock *sk;
int err;
sk = inet_diag_find_one_icsk(net, hashinfo, req);
if (IS_ERR(sk))
return PTR_ERR(sk);
rep = nlmsg_new(inet_sk_attr_size(), GFP_KERNEL);
if (!rep) {
err = -ENOMEM;
goto out;
}
err = sk_diag_fill(sk, rep, req,
sk_user_ns(NETLINK_CB(in_skb).sk),
NETLINK_CB(in_skb).portid,
nlh->nlmsg_seq, 0, nlh,
netlink_net_capable(in_skb, CAP_NET_ADMIN));
if (err < 0) {
WARN_ON(err == -EMSGSIZE);
nlmsg_free(rep);
goto out;
}
err = netlink_unicast(net->diag_nlsk, rep, NETLINK_CB(in_skb).portid,
MSG_DONTWAIT);
if (err > 0)
err = 0;
out:
if (sk)
sock_gen_put(sk);
return err;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Lorenzo Colitti | 78 | 36.79% | 2 | 12.50% |
Linus Torvalds | 70 | 33.02% | 1 | 6.25% |
Patrick McHardy | 24 | 11.32% | 2 | 12.50% |
Eric W. Biedermann | 11 | 5.19% | 2 | 12.50% |
Thomas Graf | 9 | 4.25% | 1 | 6.25% |
Pavel Emelyanov | 7 | 3.30% | 2 | 12.50% |
Arnaldo Carvalho de Melo | 5 | 2.36% | 2 | 12.50% |
Andrey Vagin | 3 | 1.42% | 1 | 6.25% |
Eric Dumazet | 3 | 1.42% | 2 | 12.50% |
Harald Welte | 2 | 0.94% | 1 | 6.25% |
Total | 212 | 100.00% | 16 | 100.00% |
EXPORT_SYMBOL_GPL(inet_diag_dump_one_icsk);
static int inet_diag_cmd_exact(int cmd, struct sk_buff *in_skb,
const struct nlmsghdr *nlh,
const struct inet_diag_req_v2 *req)
{
const struct inet_diag_handler *handler;
int err;
handler = inet_diag_lock_handler(req->sdiag_protocol);
if (IS_ERR(handler))
err = PTR_ERR(handler);
else if (cmd == SOCK_DIAG_BY_FAMILY)
err = handler->dump_one(in_skb, nlh, req);
else if (cmd == SOCK_DESTROY && handler->destroy)
err = handler->destroy(in_skb, req);
else
err = -EOPNOTSUPP;
inet_diag_unlock_handler(handler);
return err;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Pavel Emelyanov | 65 | 57.02% | 3 | 42.86% |
Lorenzo Colitti | 39 | 34.21% | 1 | 14.29% |
Herbert Xu | 5 | 4.39% | 1 | 14.29% |
Linus Torvalds | 4 | 3.51% | 1 | 14.29% |
Eric Dumazet | 1 | 0.88% | 1 | 14.29% |
Total | 114 | 100.00% | 7 | 100.00% |
static int bitstring_match(const __be32 *a1, const __be32 *a2, int bits)
{
int words = bits >> 5;
bits &= 0x1f;
if (words) {
if (memcmp(a1, a2, words << 2))
return 0;
}
if (bits) {
__be32 w1, w2;
__be32 mask;
w1 = a1[words];
w2 = a2[words];
mask = htonl((0xffffffff) << (32 - bits));
if ((w1 ^ w2) & mask)
return 0;
}
return 1;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Linus Torvalds | 104 | 93.69% | 1 | 33.33% |
Al Viro | 4 | 3.60% | 1 | 33.33% |
Stephen Hemminger | 3 | 2.70% | 1 | 33.33% |
Total | 111 | 100.00% | 3 | 100.00% |
static int inet_diag_bc_run(const struct nlattr *_bc,
const struct inet_diag_entry *entry)
{
const void *bc = nla_data(_bc);
int len = nla_len(_bc);
while (len > 0) {
int yes = 1;
const struct inet_diag_bc_op *op = bc;
switch (op->code) {
case INET_DIAG_BC_NOP:
break;
case INET_DIAG_BC_JMP:
yes = 0;
break;
case INET_DIAG_BC_S_GE:
yes = entry->sport >= op[1].no;
break;
case INET_DIAG_BC_S_LE:
yes = entry->sport <= op[1].no;
break;
case INET_DIAG_BC_D_GE:
yes = entry->dport >= op[1].no;
break;
case INET_DIAG_BC_D_LE:
yes = entry->dport <= op[1].no;
break;
case INET_DIAG_BC_AUTO:
yes = !(entry->userlocks & SOCK_BINDPORT_LOCK);
break;
case INET_DIAG_BC_S_COND:
case INET_DIAG_BC_D_COND: {
const struct inet_diag_hostcond *cond;
const __be32 *addr;
cond = (const struct inet_diag_hostcond *)(op + 1);
if (cond->port != -1 &&
cond->port != (op->code == INET_DIAG_BC_S_COND ?
entry->sport : entry->dport)) {
yes = 0;
break;
}
if (op->code == INET_DIAG_BC_S_COND)
addr = entry->saddr;
else
addr = entry->daddr;
if (cond->family != AF_UNSPEC &&
cond->family != entry->family) {
if (entry->family == AF_INET6 &&
cond->family == AF_INET) {
if (addr[0] == 0 && addr[1] == 0 &&
addr[2] == htonl(0xffff) &&
bitstring_match(addr + 3,
cond->addr,
cond->prefix_len))
break;
}
yes = 0;
break;
}
if (cond->prefix_len == 0)
break;
if (bitstring_match(addr, cond->addr,
cond->prefix_len))
break;
yes = 0;
break;
}
case INET_DIAG_BC_DEV_COND: {
u32 ifindex;
ifindex = *((const u32 *)(op + 1));
if (ifindex != entry->ifindex)
yes = 0;
break;
}
case INET_DIAG_BC_MARK_COND: {
struct inet_diag_markcond *cond;
cond = (struct inet_diag_markcond *)(op + 1);
if ((entry->mark & cond->mask) != cond->mark)
yes = 0;
break;
}
}
if (yes) {
len -= op->yes;
bc += op->yes;
} else {
len -= op->no;
bc += op->no;
}
}
return len == 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Linus Torvalds | 287 | 59.79% | 1 | 7.14% |
Lorenzo Colitti | 44 | 9.17% | 1 | 7.14% |
Neal Cardwell | 41 | 8.54% | 1 | 7.14% |
David Ahern | 37 | 7.71% | 1 | 7.14% |
Arnaldo Carvalho de Melo | 23 | 4.79% | 2 | 14.29% |
Pavel Emelyanov | 21 | 4.38% | 1 | 7.14% |
Herbert Xu | 17 | 3.54% | 1 | 7.14% |
Stephen Hemminger | 3 | 0.62% | 1 | 7.14% |
Eric Dumazet | 3 | 0.62% | 1 | 7.14% |
Hideaki Yoshifuji / 吉藤英明 | 1 | 0.21% | 1 | 7.14% |
Al Viro | 1 | 0.21% | 1 | 7.14% |
David S. Miller | 1 | 0.21% | 1 | 7.14% |
Roel Kluin | 1 | 0.21% | 1 | 7.14% |
Total | 480 | 100.00% | 14 | 100.00% |
/* This helper is available for all sockets (ESTABLISH, TIMEWAIT, SYN_RECV)
*/
static void entry_fill_addrs(struct inet_diag_entry *entry,
const struct sock *sk)
{
#if IS_ENABLED(CONFIG_IPV6)
if (sk->sk_family == AF_INET6) {
entry->saddr = sk->sk_v6_rcv_saddr.s6_addr32;
entry->daddr = sk->sk_v6_daddr.s6_addr32;
} else
#endif
{
entry->saddr = &sk->sk_rcv_saddr;
entry->daddr = &sk->sk_daddr;
}
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Pavel Emelyanov | 53 | 69.74% | 1 | 25.00% |
Eric Dumazet | 23 | 30.26% | 3 | 75.00% |
Total | 76 | 100.00% | 4 | 100.00% |
int inet_diag_bc_sk(const struct nlattr *bc, struct sock *sk)
{
struct inet_sock *inet = inet_sk(sk);
struct inet_diag_entry entry;
if (!bc)
return 1;
entry.family = sk->sk_family;
entry_fill_addrs(&entry, sk);
entry.sport = inet->inet_num;
entry.dport = ntohs(inet->inet_dport);
entry.ifindex = sk->sk_bound_dev_if;
entry.userlocks = sk_fullsock(sk) ? sk->sk_userlocks : 0;
if (sk_fullsock(sk))
entry.mark = sk->sk_mark;
else if (sk->sk_state == TCP_NEW_SYN_RECV)
entry.mark = inet_rsk(inet_reqsk(sk))->ir_mark;
else
entry.mark = 0;
return inet_diag_bc_run(bc, &entry);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Eric Dumazet | 60 | 40.00% | 3 | 50.00% |
Lorenzo Colitti | 45 | 30.00% | 1 | 16.67% |
Pavel Emelyanov | 37 | 24.67% | 1 | 16.67% |
David Ahern | 8 | 5.33% | 1 | 16.67% |
Total | 150 | 100.00% | 6 | 100.00% |
EXPORT_SYMBOL_GPL(inet_diag_bc_sk);
static int valid_cc(const void *bc, int len, int cc)
{
while (len >= 0) {
const struct inet_diag_bc_op *op = bc;
if (cc > len)
return 0;
if (cc == len)
return 1;
if (op->yes < 4 || op->yes & 3)
return 0;
len -= op->yes;
bc += op->yes;
}
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Linus Torvalds | 42 | 50.60% | 1 | 20.00% |
Arnaldo Carvalho de Melo | 31 | 37.35% | 2 | 40.00% |
Eric Dumazet | 6 | 7.23% | 1 | 20.00% |
Stephen Hemminger | 4 | 4.82% | 1 | 20.00% |
Total | 83 | 100.00% | 5 | 100.00% |
/* data is u32 ifindex */
static bool valid_devcond(const struct inet_diag_bc_op *op, int len,
int *min_len)
{
/* Check ifindex space. */
*min_len += sizeof(u32);
if (len < *min_len)
return false;
return true;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
David Ahern | 41 | 100.00% | 1 | 100.00% |
Total | 41 | 100.00% | 1 | 100.00% |
/* Validate an inet_diag_hostcond. */
static bool valid_hostcond(const struct inet_diag_bc_op *op, int len,
int *min_len)
{
struct inet_diag_hostcond *cond;
int addr_len;
/* Check hostcond space. */
*min_len += sizeof(struct inet_diag_hostcond);
if (len < *min_len)
return false;
cond = (struct inet_diag_hostcond *)(op + 1);
/* Check address family and address length. */
switch (cond->family) {
case AF_UNSPEC:
addr_len = 0;
break;
case AF_INET:
addr_len = sizeof(struct in_addr);
break;
case AF_INET6:
addr_len = sizeof(struct in6_addr);
break;
default:
return false;
}
*min_len += addr_len;
if (len < *min_len)
return false;
/* Check prefix length (in bits) vs address length (in bytes). */
if (cond->prefix_len > 8 * addr_len)
return false;
return true;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Neal Cardwell | 134 | 97.81% | 1 | 50.00% |
Eric Dumazet | 3 | 2.19% | 1 | 50.00% |
Total | 137 | 100.00% | 2 | 100.00% |
/* Validate a port comparison operator. */
static bool valid_port_comparison(const struct inet_diag_bc_op *op,
int len, int *min_len)
{
/* Port comparisons put the port in a follow-on inet_diag_bc_op. */
*min_len += sizeof(struct inet_diag_bc_op);
if (len < *min_len)
return false;
return true;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Neal Cardwell | 42 | 100.00% | 1 | 100.00% |
Total | 42 | 100.00% | 1 | 100.00% |
static bool valid_markcond(const struct inet_diag_bc_op *op, int len,
int *min_len)
{
*min_len += sizeof(struct inet_diag_markcond);
return len >= *min_len;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Lorenzo Colitti | 34 | 100.00% | 1 | 100.00% |
Total | 34 | 100.00% | 1 | 100.00% |
static int inet_diag_bc_audit(const struct nlattr *attr,
const struct sk_buff *skb)
{
bool net_admin = netlink_net_capable(skb, CAP_NET_ADMIN);
const void *bytecode, *bc;
int bytecode_len, len;
if (!attr || nla_len(attr) < sizeof(struct inet_diag_bc_op))
return -EINVAL;
bytecode = bc = nla_data(attr);
len = bytecode_len = nla_len(attr);
while (len > 0) {
int min_len = sizeof(struct inet_diag_bc_op);
const struct inet_diag_bc_op *op = bc;
switch (op->code) {
case INET_DIAG_BC_S_COND:
case INET_DIAG_BC_D_COND:
if (!valid_hostcond(bc, len, &min_len))
return -EINVAL;
break;
case INET_DIAG_BC_DEV_COND:
if (!valid_devcond(bc, len, &min_len))
return -EINVAL;
break;
case INET_DIAG_BC_S_GE:
case INET_DIAG_BC_S_LE:
case INET_DIAG_BC_D_GE:
case INET_DIAG_BC_D_LE:
if (!valid_port_comparison(bc, len, &min_len))
return -EINVAL;
break;
case INET_DIAG_BC_MARK_COND:
if (!net_admin)
return -EPERM;
if (!valid_markcond(bc, len, &min_len))
return -EINVAL;
break;
case INET_DIAG_BC_AUTO:
case INET_DIAG_BC_JMP:
case INET_DIAG_BC_NOP:
break;
default:
return -EINVAL;
}
if (op->code != INET_DIAG_BC_NOP) {
if (op->no < min_len || op->no > len + 4 || op->no & 3)
return -EINVAL;
if (op->no < len &&
!valid_cc(bytecode, bytecode_len, len - op->no))
return -EINVAL;
}
if (op->yes < min_len || op->yes > len + 4 || op->yes & 3)
return -EINVAL;
bc += op->yes;
len -= op->yes;
}
return len == 0 ? 0 : -EINVAL;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Arnaldo Carvalho de Melo | 115 | 33.63% | 1 | 11.11% |
Lorenzo Colitti | 92 | 26.90% | 2 | 22.22% |
Neal Cardwell | 69 | 20.18% | 2 | 22.22% |
Linus Torvalds | 23 | 6.73% | 1 | 11.11% |
Eric Dumazet | 22 | 6.43% | 2 | 22.22% |
David Ahern | 21 | 6.14% | 1 | 11.11% |
Total | 342 | 100.00% | 9 | 100.00% |
static int inet_csk_diag_dump(struct sock *sk,
struct sk_buff *skb,
struct netlink_callback *cb,
const struct inet_diag_req_v2 *r,
const struct nlattr *bc,
bool net_admin)
{
if (!inet_diag_bc_sk(bc, sk))
return 0;
return inet_csk_diag_fill(sk, skb, r,
sk_user_ns(NETLINK_CB(cb->skb).sk),
NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq, NLM_F_MULTI, cb->nlh,
net_admin);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Arnaldo Carvalho de Melo | 42 | 44.68% | 2 | 15.38% |
Linus Torvalds | 19 | 20.21% | 1 | 7.69% |
Pavel Emelyanov | 13 | 13.83% | 4 | 30.77% |
Eric W. Biedermann | 12 | 12.77% | 2 | 15.38% |
Lorenzo Colitti | 5 | 5.32% | 1 | 7.69% |
Eric Dumazet | 1 | 1.06% | 1 | 7.69% |
Stephen Hemminger | 1 | 1.06% | 1 | 7.69% |
Patrick McHardy | 1 | 1.06% | 1 | 7.69% |
Total | 94 | 100.00% | 13 | 100.00% |
static void twsk_build_assert(void)
{
BUILD_BUG_ON(offsetof(struct inet_timewait_sock, tw_family) !=
offsetof(struct sock, sk_family));
BUILD_BUG_ON(offsetof(struct inet_timewait_sock, tw_num) !=
offsetof(struct inet_sock, inet_num));
BUILD_BUG_ON(offsetof(struct inet_timewait_sock, tw_dport) !=
offsetof(struct inet_sock, inet_dport));
BUILD_BUG_ON(offsetof(struct inet_timewait_sock, tw_rcv_saddr) !=
offsetof(struct inet_sock, inet_rcv_saddr));
BUILD_BUG_ON(offsetof(struct inet_timewait_sock, tw_daddr) !=
offsetof(struct inet_sock, inet_daddr));
#if IS_ENABLED(CONFIG_IPV6)
BUILD_BUG_ON(offsetof(struct inet_timewait_sock, tw_v6_rcv_saddr) !=
offsetof(struct sock, sk_v6_rcv_saddr));
BUILD_BUG_ON(offsetof(struct inet_timewait_sock, tw_v6_daddr) !=
offsetof(struct sock, sk_v6_daddr));
#endif
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Eric Dumazet | 149 | 100.00% | 1 | 100.00% |
Total | 149 | 100.00% | 1 | 100.00% |
void inet_diag_dump_icsk(struct inet_hashinfo *hashinfo, struct sk_buff *skb,
struct netlink_callback *cb,
const struct inet_diag_req_v2 *r, struct nlattr *bc)
{
bool net_admin = netlink_net_capable(cb->skb, CAP_NET_ADMIN);
struct net *net = sock_net(skb->sk);
u32 idiag_states = r->idiag_states;
int i, num, s_i, s_num;
struct sock *sk;
if (idiag_states & TCPF_SYN_RECV)
idiag_states |= TCPF_NEW_SYN_RECV;
s_i = cb->args[1];
s_num = num = cb->args[2];
if (cb->args[0] == 0) {
if (!(idiag_states & TCPF_LISTEN) || r->id.idiag_dport)
goto skip_listen_ht;
for (i = s_i; i < INET_LHTABLE_SIZE; i++) {
struct inet_listen_hashbucket *ilb;
num = 0;
ilb = &hashinfo->listening_hash[i];
spin_lock(&ilb->lock);
sk_for_each(sk, &ilb->head) {
struct inet_sock *inet = inet_sk(sk);
if (!net_eq(sock_net(sk), net))
continue;
if (num < s_num) {
num++;
continue;
}
if (r->sdiag_family != AF_UNSPEC &&
sk->sk_family != r->sdiag_family)
goto next_listen;
if (r->id.idiag_sport != inet->inet_sport &&
r->id.idiag_sport)
goto next_listen;
if (inet_csk_diag_dump(sk, skb, cb, r,
bc, net_admin) < 0) {
spin_unlock(&ilb->lock);
goto done;
}
next_listen:
++num;
}
spin_unlock(&ilb->lock);
s_num = 0;
}
skip_listen_ht:
cb->args[0] = 1;
s_i = num = s_num = 0;
}
if (!(idiag_states & ~TCPF_LISTEN))
goto out;
#define SKARR_SZ 16
for (i = s_i; i <= hashinfo->ehash_mask; i++) {
struct inet_ehash_bucket *head = &hashinfo->ehash[i];
spinlock_t *lock = inet_ehash_lockp(hashinfo, i);
struct hlist_nulls_node *node;
struct sock *sk_arr[SKARR_SZ];
int num_arr[SKARR_SZ];
int idx, accum, res;
if (hlist_nulls_empty(&head->chain))
continue;
if (i > s_i)
s_num = 0;
next_chunk:
num = 0;
accum = 0;
spin_lock_bh(lock);
sk_nulls_for_each(sk, node, &head->chain) {
int state;
if (!net_eq(sock_net(sk), net))
continue;
if (num < s_num)
goto next_normal;
state = (sk->sk_state == TCP_TIME_WAIT) ?
inet_twsk(sk)->tw_substate : sk->sk_state;
if (!(idiag_states & (1 << state)))
goto next_normal;
if (r->sdiag_family != AF_UNSPEC &&
sk->sk_family != r->sdiag_family)
goto next_normal;
if (r->id.idiag_sport != htons(sk->sk_num) &&
r->id.idiag_sport)
goto next_normal;
if (r->id.idiag_dport != sk->sk_dport &&
r->id.idiag_dport)
goto next_normal;
twsk_build_assert();
if (!inet_diag_bc_sk(bc, sk))
goto next_normal;
sock_hold(sk);
num_arr[accum] = num;
sk_arr[accum] = sk;
if (++accum == SKARR_SZ)
break;
next_normal:
++num;
}
spin_unlock_bh(lock);
res = 0;
for (idx = 0; idx < accum; idx++) {
if (res >= 0) {
res = sk_diag_fill(sk_arr[idx], skb, r,
sk_user_ns(NETLINK_CB(cb->skb).sk),
NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq, NLM_F_MULTI,
cb->nlh, net_admin);
if (res < 0)
num = num_arr[idx];
}
sock_gen_put(sk_arr[idx]);
}
if (res < 0)
break;
cond_resched();
if (accum == SKARR_SZ) {
s_num = num + 1;
goto next_chunk;
}
}
done:
cb->args[1] = i;
cb->args[2] = num;
out:
;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Eric Dumazet | 292 | 37.06% | 14 | 35.90% |
Linus Torvalds | 184 | 23.35% | 1 | 2.56% |
Herbert Xu | 123 | 15.61% | 4 | 10.26% |
Pavel Emelyanov | 67 | 8.50% | 5 | 12.82% |
Andrey Vagin | 40 | 5.08% | 1 | 2.56% |
Arnaldo Carvalho de Melo | 40 | 5.08% | 9 | 23.08% |
Neal Cardwell | 24 | 3.05% | 1 | 2.56% |
Andi Kleen | 10 | 1.27% | 1 | 2.56% |
Lorenzo Colitti | 5 | 0.63% | 1 | 2.56% |
David S. Miller | 3 | 0.38% | 2 | 5.13% |
Total | 788 | 100.00% | 39 | 100.00% |
EXPORT_SYMBOL_GPL(inet_diag_dump_icsk);
static int __inet_diag_dump(struct sk_buff *skb, struct netlink_callback *cb,
const struct inet_diag_req_v2 *r,
struct nlattr *bc)
{
const struct inet_diag_handler *handler;
int err = 0;
handler = inet_diag_lock_handler(r->sdiag_protocol);
if (!IS_ERR(handler))
handler->dump(skb, cb, r, bc);
else
err = PTR_ERR(handler);
inet_diag_unlock_handler(handler);
return err ? : skb->len;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Pavel Emelyanov | 61 | 68.54% | 3 | 42.86% |
Cyrill V. Gorcunov | 16 | 17.98% | 1 | 14.29% |
Linus Torvalds | 6 | 6.74% | 1 | 14.29% |
Herbert Xu | 5 | 5.62% | 1 | 14.29% |
Eric Dumazet | 1 | 1.12% | 1 | 14.29% |
Total | 89 | 100.00% | 7 | 100.00% |
static int inet_diag_dump(struct sk_buff *skb, struct netlink_callback *cb)
{
int hdrlen = sizeof(struct inet_diag_req_v2);
struct nlattr *bc = NULL;
if (nlmsg_attrlen(cb->nlh, hdrlen))
bc = nlmsg_find_attr(cb->nlh, hdrlen, INET_DIAG_REQ_BYTECODE);
return __inet_diag_dump(skb, cb, nlmsg_data(cb->nlh), bc);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Pavel Emelyanov | 65 | 89.04% | 2 | 50.00% |
Eric Dumazet | 7 | 9.59% | 1 | 25.00% |
David S. Miller | 1 | 1.37% | 1 | 25.00% |
Total | 73 | 100.00% | 4 | 100.00% |
static int inet_diag_type2proto(int type)
{
switch (type) {
case TCPDIAG_GETSOCK:
return IPPROTO_TCP;
case DCCPDIAG_GETSOCK:
return IPPROTO_DCCP;
default:
return 0;
}
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Pavel Emelyanov | 31 | 100.00% | 1 | 100.00% |
Total | 31 | 100.00% | 1 | 100.00% |
static int inet_diag_dump_compat(struct sk_buff *skb,
struct netlink_callback *cb)
{
struct inet_diag_req *rc = nlmsg_data(cb->nlh);
int hdrlen = sizeof(struct inet_diag_req);
struct inet_diag_req_v2 req;
struct nlattr *bc = NULL;
req.sdiag_family = AF_UNSPEC; /* compatibility */
req.sdiag_protocol = inet_diag_type2proto(cb->nlh->nlmsg_type);
req.idiag_ext = rc->idiag_ext;
req.idiag_states = rc->idiag_states;
req.id = rc->id;
if (nlmsg_attrlen(cb->nlh, hdrlen))
bc = nlmsg_find_attr(cb->nlh, hdrlen, INET_DIAG_REQ_BYTECODE);
return __inet_diag_dump(skb, cb, &req, bc);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Pavel Emelyanov | 119 | 92.25% | 4 | 66.67% |
Eric Dumazet | 9 | 6.98% | 1 | 16.67% |
David S. Miller | 1 | 0.78% | 1 | 16.67% |
Total | 129 | 100.00% | 6 | 100.00% |
static int inet_diag_get_exact_compat(struct sk_buff *in_skb,
const struct nlmsghdr *nlh)
{
struct inet_diag_req *rc = nlmsg_data(nlh);
struct inet_diag_req_v2 req;
req.sdiag_family = rc->idiag_family;
req.sdiag_protocol = inet_diag_type2proto(nlh->nlmsg_type);
req.idiag_ext = rc->idiag_ext;
req.idiag_states = rc->idiag_states;
req.id = rc->id;
return inet_diag_cmd_exact(SOCK_DIAG_BY_FAMILY, in_skb, nlh, &req);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Pavel Emelyanov | 83 | 95.40% | 3 | 60.00% |
Lorenzo Colitti | 3 | 3.45% | 1 | 20.00% |
David S. Miller | 1 | 1.15% | 1 | 20.00% |
Total | 87 | 100.00% | 5 | 100.00% |
static int inet_diag_rcv_msg_compat(struct sk_buff *skb, struct nlmsghdr *nlh)
{
int hdrlen = sizeof(struct inet_diag_req);
struct net *net = sock_net(skb->sk);
if (nlh->nlmsg_type >= INET_DIAG_GETSOCK_MAX ||
nlmsg_len(nlh) < hdrlen)
return -EINVAL;
if (nlh->nlmsg_flags & NLM_F_DUMP) {
if (nlmsg_attrlen(nlh, hdrlen)) {
struct nlattr *attr;
int err;
attr = nlmsg_find_attr(nlh, hdrlen,
INET_DIAG_REQ_BYTECODE);
err = inet_diag_bc_audit(attr, skb);
if (err)
return err;
}
{
struct netlink_dump_control c = {
.dump = inet_diag_dump_compat,
};
return netlink_dump_start(net->diag_nlsk, skb, nlh, &c);
}
}
return inet_diag_get_exact_compat(skb, nlh);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Linus Torvalds | 56 | 37.84% | 1 | 8.33% |
Thomas Graf | 42 | 28.38% | 2 | 16.67% |
Pablo Neira Ayuso | 15 | 10.14% | 1 | 8.33% |
Andrey Vagin | 15 | 10.14% | 1 | 8.33% |
Lorenzo Colitti | 12 | 8.11% | 2 | 16.67% |
Arnaldo Carvalho de Melo | 5 | 3.38% | 2 | 16.67% |
Pavel Emelyanov | 3 | 2.03% | 3 | 25.00% |
Total | 148 | 100.00% | 12 | 100.00% |
static int inet_diag_handler_cmd(struct sk_buff *skb, struct nlmsghdr *h)
{
int hdrlen = sizeof(struct inet_diag_req_v2);
struct net *net = sock_net(skb->sk);
if (nlmsg_len(h) < hdrlen)
return -EINVAL;
if (h->nlmsg_type == SOCK_DIAG_BY_FAMILY &&
h->nlmsg_flags & NLM_F_DUMP) {
if (nlmsg_attrlen(h, hdrlen)) {
struct nlattr *attr;
int err;
attr = nlmsg_find_attr(h, hdrlen,
INET_DIAG_REQ_BYTECODE);
err = inet_diag_bc_audit(attr, skb);
if (err)
return err;
}
{
struct netlink_dump_control c = {
.dump = inet_diag_dump,
};
return netlink_dump_start(net->diag_nlsk, skb, h, &c);
}
}
return inet_diag_cmd_exact(h->nlmsg_type, skb, h, nlmsg_data(h));
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Pavel Emelyanov | 102 | 64.97% | 4 | 40.00% |
Lorenzo Colitti | 24 | 15.29% | 3 | 30.00% |
Pablo Neira Ayuso | 15 | 9.55% | 1 | 10.00% |
Andrey Vagin | 15 | 9.55% | 1 | 10.00% |
David S. Miller | 1 | 0.64% | 1 | 10.00% |
Total | 157 | 100.00% | 10 | 100.00% |
static
int inet_diag_handler_get_info(struct sk_buff *skb, struct sock *sk)
{
const struct inet_diag_handler *handler;
struct nlmsghdr *nlh;
struct nlattr *attr;
struct inet_diag_msg *r;
void *info = NULL;
int err = 0;
nlh = nlmsg_put(skb, 0, 0, SOCK_DIAG_BY_FAMILY, sizeof(*r), 0);
if (!nlh)
return -ENOMEM;
r = nlmsg_data(nlh);
memset(r, 0, sizeof(*r));
inet_diag_msg_common_fill(r, sk);
if (sk->sk_type == SOCK_DGRAM || sk->sk_type == SOCK_STREAM)
r->id.idiag_sport = inet_sk(sk)->inet_sport;
r->idiag_state = sk->sk_state;
if ((err = nla_put_u8(skb, INET_DIAG_PROTOCOL, sk->sk_protocol))) {
nlmsg_cancel(skb, nlh);
return err;
}
handler = inet_diag_lock_handler(sk->sk_protocol);
if (IS_ERR(handler)) {
inet_diag_unlock_handler(handler);
nlmsg_cancel(skb, nlh);
return PTR_ERR(handler);
}
attr = handler->idiag_info_size
? nla_reserve_64bit(skb, INET_DIAG_INFO,
handler->idiag_info_size,
INET_DIAG_PAD)
: NULL;
if (attr)
info = nla_data(attr);
handler->idiag_get_info(sk, r, info);
inet_diag_unlock_handler(handler);
nlmsg_end(skb, nlh);
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Craig Gallek | 260 | 98.86% | 2 | 66.67% |
Nicolas Dichtel | 3 | 1.14% | 1 | 33.33% |
Total | 263 | 100.00% | 3 | 100.00% |
static const struct sock_diag_handler inet_diag_handler = {
.family = AF_INET,
.dump = inet_diag_handler_cmd,
.get_info = inet_diag_handler_get_info,
.destroy = inet_diag_handler_cmd,
};
static const struct sock_diag_handler inet6_diag_handler = {
.family = AF_INET6,
.dump = inet_diag_handler_cmd,
.get_info = inet_diag_handler_get_info,
.destroy = inet_diag_handler_cmd,
};
int inet_diag_register(const struct inet_diag_handler *h)
{
const __u16 type = h->idiag_type;
int err = -EINVAL;
if (type >= IPPROTO_MAX)
goto out;
mutex_lock(&inet_diag_table_mutex);
err = -EEXIST;
if (!inet_diag_table[type]) {
inet_diag_table[type] = h;
err = 0;
}
mutex_unlock(&inet_diag_table_mutex);
out:
return err;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Arnaldo Carvalho de Melo | 71 | 92.21% | 1 | 20.00% |
Pavel Emelyanov | 3 | 3.90% | 2 | 40.00% |
Herbert Xu | 2 | 2.60% | 1 | 20.00% |
Eric Dumazet | 1 | 1.30% | 1 | 20.00% |
Total | 77 | 100.00% | 5 | 100.00% |
EXPORT_SYMBOL_GPL(inet_diag_register);
void inet_diag_unregister(const struct inet_diag_handler *h)
{
const __u16 type = h->idiag_type;
if (type >= IPPROTO_MAX)
return;
mutex_lock(&inet_diag_table_mutex);
inet_diag_table[type] = NULL;
mutex_unlock(&inet_diag_table_mutex);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Arnaldo Carvalho de Melo | 40 | 88.89% | 1 | 25.00% |
Pavel Emelyanov | 3 | 6.67% | 2 | 50.00% |
Herbert Xu | 2 | 4.44% | 1 | 25.00% |
Total | 45 | 100.00% | 4 | 100.00% |
EXPORT_SYMBOL_GPL(inet_diag_unregister);
static int __init inet_diag_init(void)
{
const int inet_diag_table_size = (IPPROTO_MAX *
sizeof(struct inet_diag_handler *));
int err = -ENOMEM;
inet_diag_table = kzalloc(inet_diag_table_size, GFP_KERNEL);
if (!inet_diag_table)
goto out;
err = sock_diag_register(&inet_diag_handler);
if (err)
goto out_free_nl;
err = sock_diag_register(&inet6_diag_handler);
if (err)
goto out_free_inet;
sock_diag_register_inet_compat(inet_diag_rcv_msg_compat);
out:
return err;
out_free_inet:
sock_diag_unregister(&inet_diag_handler);
out_free_nl:
kfree(inet_diag_table);
goto out;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Arnaldo Carvalho de Melo | 51 | 48.57% | 2 | 25.00% |
Pavel Emelyanov | 43 | 40.95% | 3 | 37.50% |
Linus Torvalds | 5 | 4.76% | 1 | 12.50% |
Herbert Xu | 5 | 4.76% | 1 | 12.50% |
Panagiotis Issaris | 1 | 0.95% | 1 | 12.50% |
Total | 105 | 100.00% | 8 | 100.00% |
static void __exit inet_diag_exit(void)
{
sock_diag_unregister(&inet6_diag_handler);
sock_diag_unregister(&inet_diag_handler);
sock_diag_unregister_inet_compat(inet_diag_rcv_msg_compat);
kfree(inet_diag_table);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Pavel Emelyanov | 14 | 45.16% | 2 | 33.33% |
Herbert Xu | 7 | 22.58% | 1 | 16.67% |
Arnaldo Carvalho de Melo | 6 | 19.35% | 2 | 33.33% |
Linus Torvalds | 4 | 12.90% | 1 | 16.67% |
Total | 31 | 100.00% | 6 | 100.00% |
module_init(inet_diag_init);
module_exit(inet_diag_exit);
MODULE_LICENSE("GPL");
MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_NETLINK, NETLINK_SOCK_DIAG, 2 /* AF_INET */);
MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_NETLINK, NETLINK_SOCK_DIAG, 10 /* AF_INET6 */);
Overall Contributors
Person | Tokens | Prop | Commits | CommitProp |
Eric Dumazet | 1286 | 19.62% | 29 | 20.71% |
Pavel Emelyanov | 1092 | 16.66% | 26 | 18.57% |
Linus Torvalds | 999 | 15.24% | 1 | 0.71% |
Arnaldo Carvalho de Melo | 743 | 11.34% | 17 | 12.14% |
Lorenzo Colitti | 522 | 7.97% | 5 | 3.57% |
Neal Cardwell | 312 | 4.76% | 4 | 2.86% |
Craig Gallek | 291 | 4.44% | 4 | 2.86% |
Herbert Xu | 280 | 4.27% | 6 | 4.29% |
Xin Long | 227 | 3.46% | 2 | 1.43% |
Thomas Graf | 157 | 2.40% | 3 | 2.14% |
Stephen Hemminger | 117 | 1.79% | 6 | 4.29% |
David Ahern | 111 | 1.69% | 1 | 0.71% |
Andrey Vagin | 77 | 1.18% | 1 | 0.71% |
Eric W. Biedermann | 53 | 0.81% | 2 | 1.43% |
Cyrill V. Gorcunov | 43 | 0.66% | 2 | 1.43% |
Phil Sutter | 33 | 0.50% | 2 | 1.43% |
David S. Miller | 33 | 0.50% | 6 | 4.29% |
Pablo Neira Ayuso | 30 | 0.46% | 1 | 0.71% |
Patrick McHardy | 26 | 0.40% | 2 | 1.43% |
Maciej Żenczykowski | 26 | 0.40% | 2 | 1.43% |
Murali Raja | 20 | 0.31% | 1 | 0.71% |
Andi Kleen | 10 | 0.15% | 1 | 0.71% |
Shan Wei | 10 | 0.15% | 2 | 1.43% |
Al Viro | 7 | 0.11% | 1 | 0.71% |
Johannes Berg | 6 | 0.09% | 1 | 0.71% |
Yuchung Cheng | 6 | 0.09% | 1 | 0.71% |
Nandita Dukkipati | 6 | 0.09% | 1 | 0.71% |
Nicolas Dichtel | 6 | 0.09% | 1 | 0.71% |
Daniel Borkmann | 5 | 0.08% | 1 | 0.71% |
Jean Delvare | 5 | 0.08% | 1 | 0.71% |
Ilpo Järvinen | 5 | 0.08% | 1 | 0.71% |
Tejun Heo | 3 | 0.05% | 1 | 0.71% |
Harald Welte | 2 | 0.03% | 1 | 0.71% |
Roel Kluin | 1 | 0.02% | 1 | 0.71% |
Hideaki Yoshifuji / 吉藤英明 | 1 | 0.02% | 1 | 0.71% |
Adrian Bunk | 1 | 0.02% | 1 | 0.71% |
Panagiotis Issaris | 1 | 0.02% | 1 | 0.71% |
Total | 6553 | 100.00% | 140 | 100.00% |
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