2 c26f2460 2023-06-08 op * Copyright (c) 2010-2015 Reyk Floeter <reyk@openbsd.org>
4 c26f2460 2023-06-08 op * Permission to use, copy, modify, and distribute this software for any
5 c26f2460 2023-06-08 op * purpose with or without fee is hereby granted, provided that the above
6 c26f2460 2023-06-08 op * copyright notice and this permission notice appear in all copies.
8 c26f2460 2023-06-08 op * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 c26f2460 2023-06-08 op * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 c26f2460 2023-06-08 op * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 c26f2460 2023-06-08 op * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 c26f2460 2023-06-08 op * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 c26f2460 2023-06-08 op * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 c26f2460 2023-06-08 op * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 c26f2460 2023-06-08 op struct imsgev {
19 c26f2460 2023-06-08 op struct imsgbuf ibuf;
20 c26f2460 2023-06-08 op void (*handler)(int, short, void *);
21 c26f2460 2023-06-08 op struct event ev;
22 c26f2460 2023-06-08 op struct privsep_proc *proc;
27 c26f2460 2023-06-08 op #define IMSG_SIZE_CHECK(imsg, p) do { \
28 c26f2460 2023-06-08 op if (IMSG_DATA_SIZE(imsg) < sizeof(*p)) \
29 c26f2460 2023-06-08 op fatalx("bad length imsg received (%s)", #p); \
31 c26f2460 2023-06-08 op #define IMSG_DATA_SIZE(imsg) ((imsg)->hdr.len - IMSG_HEADER_SIZE)
33 c26f2460 2023-06-08 op #define PROC_PARENT_SOCK_FILENO 3
36 c26f2460 2023-06-08 op enum privsep_procid {
44 c26f2460 2023-06-08 op #define CONFIG_RELOAD 0x00
45 c26f2460 2023-06-08 op #define CONFIG_SOCKS 0x01
46 c26f2460 2023-06-08 op #define CONFIG_ALL 0xff
48 c26f2460 2023-06-08 op struct privsep_pipes {
49 c26f2460 2023-06-08 op int *pp_pipes[PROC_MAX];
52 c26f2460 2023-06-08 op struct privsep {
53 c26f2460 2023-06-08 op struct privsep_pipes *ps_pipes[PROC_MAX];
54 c26f2460 2023-06-08 op struct privsep_pipes *ps_pp;
56 c26f2460 2023-06-08 op struct imsgev *ps_ievs[PROC_MAX];
57 c26f2460 2023-06-08 op const char *ps_title[PROC_MAX];
58 c26f2460 2023-06-08 op uint8_t ps_what[PROC_MAX];
60 c26f2460 2023-06-08 op struct passwd *ps_pw;
61 c26f2460 2023-06-08 op int ps_noaction;
63 c26f2460 2023-06-08 op unsigned int ps_instances[PROC_MAX];
64 c26f2460 2023-06-08 op unsigned int ps_instance;
66 c26f2460 2023-06-08 op /* Event and signal handlers */
67 c26f2460 2023-06-08 op struct event ps_evsigint;
68 c26f2460 2023-06-08 op struct event ps_evsigterm;
69 c26f2460 2023-06-08 op struct event ps_evsigchld;
70 c26f2460 2023-06-08 op struct event ps_evsighup;
71 3bda540e 2023-07-24 op struct event ps_evsigusr1;
76 c26f2460 2023-06-08 op struct privsep_proc {
77 c26f2460 2023-06-08 op const char *p_title;
78 c26f2460 2023-06-08 op enum privsep_procid p_id;
79 c26f2460 2023-06-08 op int (*p_cb)(int, struct privsep_proc *,
80 c26f2460 2023-06-08 op struct imsg *);
81 c26f2460 2023-06-08 op void (*p_init)(struct privsep *,
82 c26f2460 2023-06-08 op struct privsep_proc *);
83 c26f2460 2023-06-08 op void (*p_shutdown)(void);
84 c26f2460 2023-06-08 op const char *p_chroot;
85 c26f2460 2023-06-08 op struct passwd *p_pw;
86 c26f2460 2023-06-08 op struct privsep *p_ps;
89 c26f2460 2023-06-08 op struct privsep_fd {
90 c26f2460 2023-06-08 op enum privsep_procid pf_procid;
91 c26f2460 2023-06-08 op unsigned int pf_instance;
95 c26f2460 2023-06-08 op void proc_init(struct privsep *, struct privsep_proc *, unsigned int,
96 c26f2460 2023-06-08 op int, int, char **, enum privsep_procid);
97 c26f2460 2023-06-08 op void proc_kill(struct privsep *);
98 c26f2460 2023-06-08 op void proc_connect(struct privsep *ps);
99 c26f2460 2023-06-08 op void proc_dispatch(int, short event, void *);
100 c26f2460 2023-06-08 op void proc_range(struct privsep *, enum privsep_procid, int *, int *);
101 c26f2460 2023-06-08 op void proc_run(struct privsep *, struct privsep_proc *,
102 c26f2460 2023-06-08 op struct privsep_proc *, unsigned int,
103 c26f2460 2023-06-08 op void (*)(struct privsep *, struct privsep_proc *, void *), void *);
104 c26f2460 2023-06-08 op void imsg_event_add(struct imsgev *);
105 c26f2460 2023-06-08 op int imsg_compose_event(struct imsgev *, uint16_t, uint32_t,
106 c26f2460 2023-06-08 op pid_t, int, void *, uint16_t);
107 c26f2460 2023-06-08 op int imsg_composev_event(struct imsgev *, uint16_t, uint32_t,
108 c26f2460 2023-06-08 op pid_t, int, const struct iovec *, int);
109 c26f2460 2023-06-08 op int proc_compose_imsg(struct privsep *, enum privsep_procid, int,
110 c26f2460 2023-06-08 op uint16_t, uint32_t, int, void *, uint16_t);
111 c26f2460 2023-06-08 op int proc_compose(struct privsep *, enum privsep_procid,
112 c26f2460 2023-06-08 op uint16_t, void *data, uint16_t);
113 c26f2460 2023-06-08 op int proc_composev_imsg(struct privsep *, enum privsep_procid, int,
114 c26f2460 2023-06-08 op uint16_t, uint32_t, int, const struct iovec *, int);
115 c26f2460 2023-06-08 op int proc_composev(struct privsep *, enum privsep_procid,
116 c26f2460 2023-06-08 op uint16_t, const struct iovec *, int);
117 c26f2460 2023-06-08 op struct imsgbuf *
118 c26f2460 2023-06-08 op proc_ibuf(struct privsep *, enum privsep_procid, int);
119 c26f2460 2023-06-08 op struct imsgev *
120 c26f2460 2023-06-08 op proc_iev(struct privsep *, enum privsep_procid, int);
121 c26f2460 2023-06-08 op enum privsep_procid
122 c26f2460 2023-06-08 op proc_getid(struct privsep_proc *, unsigned int, const char *);
123 c26f2460 2023-06-08 op int proc_flush_imsg(struct privsep *, enum privsep_procid, int);
