projects / mirror_lxcfs.git / blame
| Commit | Line | Data |
|---|---|---|
| 1d81c6a6 CB |
1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
| 2 | ||
| 3 | #ifndef __LXCFS_UTILS_H | |
| 4 | #define __LXCFS_UTILS_H | |
| 5 | ||
| 1f5596dd CB |
6 | #ifndef _GNU_SOURCE |
| 7 | #define _GNU_SOURCE | |
| 8 | #endif | |
| 9 | ||
| 10 | #ifndef FUSE_USE_VERSION | |
| 580fe4df | 11 | #define FUSE_USE_VERSION 26 |
| 1f5596dd CB |
12 | #endif |
| 13 | ||
| 14 | #define _FILE_OFFSET_BITS 64 | |
| 580fe4df CB |
15 | |
| 16 | #include <fuse.h> | |
| 4ec5c9da | 17 | #include <signal.h> |
| 1f5596dd CB |
18 | #include <stdbool.h> |
| 19 | #include <sys/socket.h> | |
| 20 | #include <sys/types.h> | |
| 21 | #include <sys/un.h> | |
| 4ec5c9da | 22 | #include <sys/syscall.h> |
| 1f5596dd CB |
23 | #include <unistd.h> |
| 24 | ||
| 25 | #include "config.h" | |
| 26 | #include "macro.h" | |
| 580fe4df | 27 | |
| 1d81c6a6 CB |
28 | /* Reserve buffer size to account for file size changes. */ |
| 29 | #define BUF_RESERVE_SIZE 512 | |
| 30 | ||
| 1f5596dd CB |
31 | #define SEND_CREDS_OK 0 |
| 32 | #define SEND_CREDS_NOTSK 1 | |
| 33 | #define SEND_CREDS_FAIL 2 | |
| 34 | ||
| 35 | struct file_info; | |
| 36 | ||
| 87f7558b CB |
37 | __attribute__((format_arg(4))) extern char *must_strcat(char **src, size_t *sz, |
| 38 | size_t *asz, | |
| 39 | const char *format, ...); | |
| 1d81c6a6 CB |
40 | extern bool is_shared_pidns(pid_t pid); |
| 41 | extern int preserve_ns(const int pid, const char *ns); | |
| 580fe4df | 42 | extern void do_release_file_info(struct fuse_file_info *fi); |
| 1f5596dd CB |
43 | extern bool recv_creds(int sock, struct ucred *cred, char *v); |
| 44 | extern int send_creds(int sock, struct ucred *cred, char v, bool pingfirst); | |
| 45 | extern bool wait_for_sock(int sock, int timeout); | |
| 46 | extern int read_file_fuse(const char *path, char *buf, size_t size, | |
| 47 | struct file_info *d); | |
| 4ec5c9da CB |
48 | extern void prune_init_slice(char *cg); |
| 49 | extern int wait_for_pid(pid_t pid); | |
| 1d81c6a6 | 50 | |
| 2aa59b2e CB |
51 | #ifndef HAVE_PIDFD_OPEN |
| 52 | static inline int pidfd_open(pid_t pid, unsigned int flags) | |
| 53 | { | |
| 54 | #ifdef __NR_pidfd_open | |
| 55 | return syscall(__NR_pidfd_open, pid, flags); | |
| 56 | #else | |
| 57 | return ret_errno(ENOSYS); | |
| 58 | #endif | |
| 59 | } | |
| 60 | #endif | |
| 61 | ||
| 62 | #ifndef HAVE_PIDFD_SEND_SIGNAL | |
| 63 | static inline int pidfd_send_signal(int pidfd, int sig, siginfo_t *info, | |
| 64 | unsigned int flags) | |
| 65 | { | |
| 66 | #ifdef __NR_pidfd_send_signal | |
| 67 | return syscall(__NR_pidfd_send_signal, pidfd, sig, info, flags); | |
| 68 | #else | |
| 69 | return ret_errno(ENOSYS); | |
| 70 | #endif | |
| 71 | } | |
| 72 | #endif | |
| 73 | ||
| 757a63e7 CB |
74 | extern FILE *fopen_cached(const char *path, const char *mode, |
| 75 | void **caller_freed_buffer); | |
| 76 | ||
| 1d81c6a6 | 77 | #endif /* __LXCFS_UTILS_H */ |