1*84960bf2SKuniyuki Iwashima /* SPDX-License-Identifier: GPL-2.0 */ 2*84960bf2SKuniyuki Iwashima #ifndef __AF_UNIX_H 3*84960bf2SKuniyuki Iwashima #define __AF_UNIX_H 4*84960bf2SKuniyuki Iwashima 5*84960bf2SKuniyuki Iwashima #include <linux/uidgid.h> 6*84960bf2SKuniyuki Iwashima 7*84960bf2SKuniyuki Iwashima #define UNIX_HASH_MOD (256 - 1) 8*84960bf2SKuniyuki Iwashima #define UNIX_HASH_SIZE (256 * 2) 9*84960bf2SKuniyuki Iwashima #define UNIX_HASH_BITS 8 10*84960bf2SKuniyuki Iwashima 11*84960bf2SKuniyuki Iwashima #define unix_state_lock(s) spin_lock(&unix_sk(s)->lock) 12*84960bf2SKuniyuki Iwashima #define unix_state_unlock(s) spin_unlock(&unix_sk(s)->lock) 13*84960bf2SKuniyuki Iwashima 14*84960bf2SKuniyuki Iwashima struct sock *unix_peer_get(struct sock *sk); 15*84960bf2SKuniyuki Iwashima 16*84960bf2SKuniyuki Iwashima struct unix_skb_parms { 17*84960bf2SKuniyuki Iwashima struct pid *pid; /* skb credentials */ 18*84960bf2SKuniyuki Iwashima kuid_t uid; 19*84960bf2SKuniyuki Iwashima kgid_t gid; 20*84960bf2SKuniyuki Iwashima struct scm_fp_list *fp; /* Passed files */ 21*84960bf2SKuniyuki Iwashima #ifdef CONFIG_SECURITY_NETWORK 22*84960bf2SKuniyuki Iwashima u32 secid; /* Security ID */ 23*84960bf2SKuniyuki Iwashima #endif 24*84960bf2SKuniyuki Iwashima u32 consumed; 25*84960bf2SKuniyuki Iwashima } __randomize_layout; 26*84960bf2SKuniyuki Iwashima 27*84960bf2SKuniyuki Iwashima #define UNIXCB(skb) (*(struct unix_skb_parms *)&((skb)->cb)) 28*84960bf2SKuniyuki Iwashima 29*84960bf2SKuniyuki Iwashima /* GC for SCM_RIGHTS */ 30*84960bf2SKuniyuki Iwashima extern unsigned int unix_tot_inflight; 31*84960bf2SKuniyuki Iwashima void unix_add_edges(struct scm_fp_list *fpl, struct unix_sock *receiver); 32*84960bf2SKuniyuki Iwashima void unix_del_edges(struct scm_fp_list *fpl); 33*84960bf2SKuniyuki Iwashima void unix_update_edges(struct unix_sock *receiver); 34*84960bf2SKuniyuki Iwashima int unix_prepare_fpl(struct scm_fp_list *fpl); 35*84960bf2SKuniyuki Iwashima void unix_destroy_fpl(struct scm_fp_list *fpl); 36*84960bf2SKuniyuki Iwashima void unix_gc(void); 37*84960bf2SKuniyuki Iwashima void wait_for_unix_gc(struct scm_fp_list *fpl); 38*84960bf2SKuniyuki Iwashima 39*84960bf2SKuniyuki Iwashima /* SOCK_DIAG */ 40*84960bf2SKuniyuki Iwashima long unix_inq_len(struct sock *sk); 41*84960bf2SKuniyuki Iwashima long unix_outq_len(struct sock *sk); 42*84960bf2SKuniyuki Iwashima 43*84960bf2SKuniyuki Iwashima /* sysctl */ 44*84960bf2SKuniyuki Iwashima #ifdef CONFIG_SYSCTL 45*84960bf2SKuniyuki Iwashima int unix_sysctl_register(struct net *net); 46*84960bf2SKuniyuki Iwashima void unix_sysctl_unregister(struct net *net); 47*84960bf2SKuniyuki Iwashima #else 48*84960bf2SKuniyuki Iwashima static inline int unix_sysctl_register(struct net *net) 49*84960bf2SKuniyuki Iwashima { 50*84960bf2SKuniyuki Iwashima return 0; 51*84960bf2SKuniyuki Iwashima } 52*84960bf2SKuniyuki Iwashima 53*84960bf2SKuniyuki Iwashima static inline void unix_sysctl_unregister(struct net *net) 54*84960bf2SKuniyuki Iwashima { 55*84960bf2SKuniyuki Iwashima } 56*84960bf2SKuniyuki Iwashima #endif 57*84960bf2SKuniyuki Iwashima 58*84960bf2SKuniyuki Iwashima /* BPF SOCKMAP */ 59*84960bf2SKuniyuki Iwashima int __unix_dgram_recvmsg(struct sock *sk, struct msghdr *msg, size_t size, int flags); 60*84960bf2SKuniyuki Iwashima int __unix_stream_recvmsg(struct sock *sk, struct msghdr *msg, size_t size, int flags); 61*84960bf2SKuniyuki Iwashima 62*84960bf2SKuniyuki Iwashima #ifdef CONFIG_BPF_SYSCALL 63*84960bf2SKuniyuki Iwashima extern struct proto unix_dgram_proto; 64*84960bf2SKuniyuki Iwashima extern struct proto unix_stream_proto; 65*84960bf2SKuniyuki Iwashima 66*84960bf2SKuniyuki Iwashima int unix_dgram_bpf_update_proto(struct sock *sk, struct sk_psock *psock, bool restore); 67*84960bf2SKuniyuki Iwashima int unix_stream_bpf_update_proto(struct sock *sk, struct sk_psock *psock, bool restore); 68*84960bf2SKuniyuki Iwashima void __init unix_bpf_build_proto(void); 69*84960bf2SKuniyuki Iwashima #else 70*84960bf2SKuniyuki Iwashima static inline void __init unix_bpf_build_proto(void) 71*84960bf2SKuniyuki Iwashima { 72*84960bf2SKuniyuki Iwashima } 73*84960bf2SKuniyuki Iwashima #endif 74*84960bf2SKuniyuki Iwashima 75*84960bf2SKuniyuki Iwashima #endif 76