mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 08:58:07 +00:00
e209fee411
With this commit, all the GIDs ("0 4294967294") can be written to the
"net.ipv4.ping_group_range" sysctl.
Note that 4294967295 (0xffffffff) is an invalid GID (see gid_valid() in
include/linux/uidgid.h), and an attempt to register this number will cause
-EINVAL.
Prior to this commit, only up to GID 2147483647 could be covered.
Documentation/networking/ip-sysctl.rst had "0 4294967295" as an example
value, but this example was wrong and causing -EINVAL.
Fixes: c319b4d76b ("net: ipv4: add IPPROTO_ICMP socket kind")
Co-developed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
87 lines
2.7 KiB
C
87 lines
2.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/*
|
|
* INET An implementation of the TCP/IP protocol suite for the LINUX
|
|
* operating system. INET is implemented using the BSD Socket
|
|
* interface as the means of communication with the user level.
|
|
*
|
|
* Definitions for the "ping" module.
|
|
*/
|
|
#ifndef _PING_H
|
|
#define _PING_H
|
|
|
|
#include <net/icmp.h>
|
|
#include <net/netns/hash.h>
|
|
|
|
/* PING_HTABLE_SIZE must be power of 2 */
|
|
#define PING_HTABLE_SIZE 64
|
|
#define PING_HTABLE_MASK (PING_HTABLE_SIZE-1)
|
|
|
|
#define GID_T_MAX (((gid_t)~0U) - 1)
|
|
|
|
/* Compatibility glue so we can support IPv6 when it's compiled as a module */
|
|
struct pingv6_ops {
|
|
int (*ipv6_recv_error)(struct sock *sk, struct msghdr *msg, int len,
|
|
int *addr_len);
|
|
void (*ip6_datagram_recv_common_ctl)(struct sock *sk,
|
|
struct msghdr *msg,
|
|
struct sk_buff *skb);
|
|
void (*ip6_datagram_recv_specific_ctl)(struct sock *sk,
|
|
struct msghdr *msg,
|
|
struct sk_buff *skb);
|
|
int (*icmpv6_err_convert)(u8 type, u8 code, int *err);
|
|
void (*ipv6_icmp_error)(struct sock *sk, struct sk_buff *skb, int err,
|
|
__be16 port, u32 info, u8 *payload);
|
|
int (*ipv6_chk_addr)(struct net *net, const struct in6_addr *addr,
|
|
const struct net_device *dev, int strict);
|
|
};
|
|
|
|
struct ping_iter_state {
|
|
struct seq_net_private p;
|
|
int bucket;
|
|
sa_family_t family;
|
|
};
|
|
|
|
extern struct proto ping_prot;
|
|
#if IS_ENABLED(CONFIG_IPV6)
|
|
extern struct pingv6_ops pingv6_ops;
|
|
#endif
|
|
|
|
struct pingfakehdr {
|
|
struct icmphdr icmph;
|
|
struct msghdr *msg;
|
|
sa_family_t family;
|
|
__wsum wcheck;
|
|
};
|
|
|
|
int ping_get_port(struct sock *sk, unsigned short ident);
|
|
int ping_hash(struct sock *sk);
|
|
void ping_unhash(struct sock *sk);
|
|
|
|
int ping_init_sock(struct sock *sk);
|
|
void ping_close(struct sock *sk, long timeout);
|
|
int ping_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len);
|
|
void ping_err(struct sk_buff *skb, int offset, u32 info);
|
|
int ping_getfrag(void *from, char *to, int offset, int fraglen, int odd,
|
|
struct sk_buff *);
|
|
|
|
int ping_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
|
|
int flags, int *addr_len);
|
|
int ping_common_sendmsg(int family, struct msghdr *msg, size_t len,
|
|
void *user_icmph, size_t icmph_len);
|
|
int ping_queue_rcv_skb(struct sock *sk, struct sk_buff *skb);
|
|
enum skb_drop_reason ping_rcv(struct sk_buff *skb);
|
|
|
|
#ifdef CONFIG_PROC_FS
|
|
void *ping_seq_start(struct seq_file *seq, loff_t *pos, sa_family_t family);
|
|
void *ping_seq_next(struct seq_file *seq, void *v, loff_t *pos);
|
|
void ping_seq_stop(struct seq_file *seq, void *v);
|
|
|
|
int __init ping_proc_init(void);
|
|
void ping_proc_exit(void);
|
|
#endif
|
|
|
|
void __init ping_init(void);
|
|
int __init pingv6_init(void);
|
|
void pingv6_exit(void);
|
|
|
|
#endif /* _PING_H */
|