1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
/* $OpenBSD: unwind.h,v 1.5 2019/01/30 12:17:02 benno Exp $ */
/*
* Copyright (c) 2018 Florian Obser <florian@openbsd.org>
* Copyright (c) 2004 Esben Norby <norby@openbsd.org>
* Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <event.h>
#include <imsg.h>
#include <stdint.h>
#ifndef nitems
#define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
#endif
#define CONF_FILE "/etc/unwind.conf"
#define UNWIND_SOCKET "/var/run/unwind.sock"
#define UNWIND_USER "_unwind"
#define OPT_VERBOSE 0x00000001
#define OPT_VERBOSE2 0x00000002
#define OPT_NOACTION 0x00000004
enum {
PROC_MAIN,
PROC_RESOLVER,
PROC_FRONTEND
} unwind_process;
static const char * const log_procnames[] = {
"main",
"resolver",
"frontend",
};
struct imsgev {
struct imsgbuf ibuf;
void (*handler)(int, short, void *);
struct event ev;
short events;
};
enum imsg_type {
IMSG_NONE,
IMSG_CTL_LOG_VERBOSE,
IMSG_CTL_RELOAD,
IMSG_CTL_STATUS,
IMSG_RECONF_CONF,
IMSG_RECONF_FORWARDER,
IMSG_RECONF_DOT_FORWARDER,
IMSG_RECONF_END,
IMSG_UDP4SOCK,
IMSG_UDP6SOCK,
IMSG_ROUTESOCK,
IMSG_CONTROLFD,
IMSG_STARTUP,
IMSG_STARTUP_DONE,
IMSG_SOCKET_IPC,
IMSG_QUERY,
IMSG_ANSWER_HEADER,
IMSG_ANSWER,
IMSG_OPEN_DHCP_LEASE,
IMSG_LEASEFD,
IMSG_FORWARDER,
IMSG_RESOLVER_DOWN,
IMSG_RESOLVER_UP,
IMSG_OPEN_PORTS,
IMSG_CTL_RESOLVER_INFO,
IMSG_CTL_RESOLVER_WHY_BOGUS,
IMSG_CTL_RESOLVER_HISTOGRAM,
IMSG_CTL_END
};
struct unwind_forwarder {
SIMPLEQ_ENTRY(unwind_forwarder) entry;
char name[1024]; /* XXX */
};
struct unwind_conf {
SIMPLEQ_HEAD(unwind_forwarder_head, unwind_forwarder) unwind_forwarder_list;
struct unwind_forwarder_head unwind_dot_forwarder_list;
int unwind_options;
};
struct query_imsg {
uint64_t id;
char qname[255];
int t;
int c;
int err;
int bogus;
int async_id;
void *resolver;
struct timespec tp;
};
extern uint32_t cmd_opts;
/* unwind.c */
void main_imsg_compose_frontend(int, pid_t, void *, uint16_t);
void main_imsg_compose_frontend_fd(int, pid_t, int);
void main_imsg_compose_resolver(int, pid_t, void *, uint16_t);
void merge_config(struct unwind_conf *, struct unwind_conf *);
void imsg_event_add(struct imsgev *);
int imsg_compose_event(struct imsgev *, uint16_t, uint32_t, pid_t,
int, void *, uint16_t);
struct unwind_conf *config_new_empty(void);
void config_clear(struct unwind_conf *);
/* printconf.c */
void print_config(struct unwind_conf *);
/* parse.y */
struct unwind_conf *parse_config(char *);
int cmdline_symset(char *);
|
