xref: /freebsd/lib/libprocstat/libprocstat.h (revision 4f52dfbb)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2009 Stanislav Sedov <stas@FreeBSD.org>
5  * Copyright (c) 2017 Dell EMC
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * $FreeBSD$
30  */
31 
32 #ifndef _LIBPROCSTAT_H_
33 #define	_LIBPROCSTAT_H_
34 
35 /*
36  * XXX: sys/elf.h conflicts with zfs_context.h. Workaround this by not
37  * including conflicting parts when building zfs code.
38  */
39 #ifndef ZFS
40 #include <sys/elf.h>
41 #endif
42 #include <sys/caprights.h>
43 
44 /*
45  * Vnode types.
46  */
47 #define	PS_FST_VTYPE_VNON	1
48 #define	PS_FST_VTYPE_VREG	2
49 #define	PS_FST_VTYPE_VDIR	3
50 #define	PS_FST_VTYPE_VBLK	4
51 #define	PS_FST_VTYPE_VCHR	5
52 #define	PS_FST_VTYPE_VLNK	6
53 #define	PS_FST_VTYPE_VSOCK	7
54 #define	PS_FST_VTYPE_VFIFO	8
55 #define	PS_FST_VTYPE_VBAD	9
56 #define	PS_FST_VTYPE_UNKNOWN	255
57 
58 /*
59  * Descriptor types.
60  */
61 #define	PS_FST_TYPE_VNODE	1
62 #define	PS_FST_TYPE_FIFO	2
63 #define	PS_FST_TYPE_SOCKET	3
64 #define	PS_FST_TYPE_PIPE	4
65 #define	PS_FST_TYPE_PTS		5
66 #define	PS_FST_TYPE_KQUEUE	6
67 #define	PS_FST_TYPE_CRYPTO	7
68 #define	PS_FST_TYPE_MQUEUE	8
69 #define	PS_FST_TYPE_SHM		9
70 #define	PS_FST_TYPE_SEM		10
71 #define	PS_FST_TYPE_UNKNOWN	11
72 #define	PS_FST_TYPE_NONE	12
73 #define	PS_FST_TYPE_PROCDESC	13
74 
75 /*
76  * Special descriptor numbers.
77  */
78 #define	PS_FST_UFLAG_RDIR	0x0001
79 #define	PS_FST_UFLAG_CDIR	0x0002
80 #define	PS_FST_UFLAG_JAIL	0x0004
81 #define	PS_FST_UFLAG_TRACE	0x0008
82 #define	PS_FST_UFLAG_TEXT	0x0010
83 #define	PS_FST_UFLAG_MMAP	0x0020
84 #define	PS_FST_UFLAG_CTTY	0x0040
85 
86 /*
87  * Descriptor flags.
88  */
89 #define PS_FST_FFLAG_READ	0x0001
90 #define PS_FST_FFLAG_WRITE	0x0002
91 #define	PS_FST_FFLAG_NONBLOCK	0x0004
92 #define	PS_FST_FFLAG_APPEND	0x0008
93 #define	PS_FST_FFLAG_SHLOCK	0x0010
94 #define	PS_FST_FFLAG_EXLOCK	0x0020
95 #define	PS_FST_FFLAG_ASYNC	0x0040
96 #define	PS_FST_FFLAG_SYNC	0x0080
97 #define	PS_FST_FFLAG_NOFOLLOW	0x0100
98 #define	PS_FST_FFLAG_CREAT	0x0200
99 #define	PS_FST_FFLAG_TRUNC	0x0400
100 #define	PS_FST_FFLAG_EXCL	0x0800
101 #define	PS_FST_FFLAG_DIRECT	0x1000
102 #define	PS_FST_FFLAG_EXEC	0x2000
103 #define	PS_FST_FFLAG_HASLOCK	0x4000
104 
105 struct kinfo_kstack;
106 struct kinfo_vmentry;
107 struct procstat;
108 struct ptrace_lwpinfo;
109 struct rlimit;
110 struct filestat {
111 	int	fs_type;	/* Descriptor type. */
112 	int	fs_flags;	/* filestat specific flags. */
113 	int	fs_fflags;	/* Descriptor access flags. */
114 	int	fs_uflags;	/* How this file is used. */
115 	int	fs_fd;		/* File descriptor number. */
116 	int	fs_ref_count;	/* Reference count. */
117 	off_t	fs_offset;	/* Seek location. */
118 	void	*fs_typedep;	/* Type dependent data. */
119 	char	*fs_path;
120 	STAILQ_ENTRY(filestat)	next;
121 	cap_rights_t	fs_cap_rights;	/* Capability rights, if flag set. */
122 };
123 struct vnstat {
124 	uint64_t	vn_fileid;
125 	uint64_t	vn_size;
126 	uint64_t	vn_dev;
127 	uint64_t	vn_fsid;
128 	char		*vn_mntdir;
129 	int		vn_type;
130 	uint16_t	vn_mode;
131 	char		vn_devname[SPECNAMELEN + 1];
132 };
133 struct ptsstat {
134 	uint64_t	dev;
135 	char		devname[SPECNAMELEN + 1];
136 };
137 struct pipestat {
138 	size_t		buffer_cnt;
139 	uint64_t	addr;
140 	uint64_t	peer;
141 };
142 struct semstat {
143 	uint32_t	value;
144 	uint16_t	mode;
145 };
146 struct shmstat {
147 	uint64_t	size;
148 	uint16_t	mode;
149 };
150 struct sockstat {
151 	uint64_t	inp_ppcb;
152 	uint64_t	so_addr;
153 	uint64_t	so_pcb;
154 	uint64_t	unp_conn;
155 	int		dom_family;
156 	int		proto;
157 	int		so_rcv_sb_state;
158 	int		so_snd_sb_state;
159 	struct sockaddr_storage	sa_local;	/* Socket address. */
160 	struct sockaddr_storage	sa_peer;	/* Peer address. */
161 	int		type;
162 	char		dname[32];
163 	unsigned int	sendq;
164 	unsigned int	recvq;
165 };
166 
167 STAILQ_HEAD(filestat_list, filestat);
168 
169 __BEGIN_DECLS
170 void	procstat_close(struct procstat *procstat);
171 void	procstat_freeargv(struct procstat *procstat);
172 #ifndef ZFS
173 void	procstat_freeauxv(struct procstat *procstat, Elf_Auxinfo *auxv);
174 #endif
175 void	procstat_freeenvv(struct procstat *procstat);
176 void	procstat_freegroups(struct procstat *procstat, gid_t *groups);
177 void	procstat_freekstack(struct procstat *procstat,
178     struct kinfo_kstack *kkstp);
179 void	procstat_freeprocs(struct procstat *procstat, struct kinfo_proc *p);
180 void	procstat_freefiles(struct procstat *procstat,
181     struct filestat_list *head);
182 void	procstat_freeptlwpinfo(struct procstat *procstat,
183     struct ptrace_lwpinfo *pl);
184 void	procstat_freevmmap(struct procstat *procstat,
185     struct kinfo_vmentry *vmmap);
186 struct filestat_list	*procstat_getfiles(struct procstat *procstat,
187     struct kinfo_proc *kp, int mmapped);
188 struct kinfo_proc	*procstat_getprocs(struct procstat *procstat,
189     int what, int arg, unsigned int *count);
190 int	procstat_get_pipe_info(struct procstat *procstat, struct filestat *fst,
191     struct pipestat *pipe, char *errbuf);
192 int	procstat_get_pts_info(struct procstat *procstat, struct filestat *fst,
193     struct ptsstat *pts, char *errbuf);
194 int	procstat_get_sem_info(struct procstat *procstat, struct filestat *fst,
195     struct semstat *sem, char *errbuf);
196 int	procstat_get_shm_info(struct procstat *procstat, struct filestat *fst,
197     struct shmstat *shm, char *errbuf);
198 int	procstat_get_socket_info(struct procstat *procstat, struct filestat *fst,
199     struct sockstat *sock, char *errbuf);
200 int	procstat_get_vnode_info(struct procstat *procstat, struct filestat *fst,
201     struct vnstat *vn, char *errbuf);
202 char	**procstat_getargv(struct procstat *procstat, struct kinfo_proc *p,
203     size_t nchr);
204 #ifndef ZFS
205 Elf_Auxinfo	*procstat_getauxv(struct procstat *procstat,
206     struct kinfo_proc *kp, unsigned int *cntp);
207 #endif
208 struct ptrace_lwpinfo	*procstat_getptlwpinfo(struct procstat *procstat,
209     unsigned int *cntp);
210 char	**procstat_getenvv(struct procstat *procstat, struct kinfo_proc *p,
211     size_t nchr);
212 gid_t	*procstat_getgroups(struct procstat *procstat, struct kinfo_proc *kp,
213     unsigned int *count);
214 struct kinfo_kstack	*procstat_getkstack(struct procstat *procstat,
215     struct kinfo_proc *kp, unsigned int *count);
216 int	procstat_getosrel(struct procstat *procstat, struct kinfo_proc *kp,
217     int *osrelp);
218 int	procstat_getpathname(struct procstat *procstat, struct kinfo_proc *kp,
219     char *pathname, size_t maxlen);
220 int	procstat_getrlimit(struct procstat *procstat, struct kinfo_proc *kp,
221     int which, struct rlimit* rlimit);
222 int	procstat_getumask(struct procstat *procstat, struct kinfo_proc *kp,
223     unsigned short* umask);
224 struct kinfo_vmentry	*procstat_getvmmap(struct procstat *procstat,
225     struct kinfo_proc *kp, unsigned int *count);
226 struct procstat	*procstat_open_core(const char *filename);
227 struct procstat	*procstat_open_sysctl(void);
228 struct procstat	*procstat_open_kvm(const char *nlistf, const char *memf);
229 __END_DECLS
230 
231 #endif	/* !_LIBPROCSTAT_H_ */
232