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
|
/* ISC license. */
#include <stdint.h>
#include <unistd.h>
#include <errno.h>
#include <tls.h>
#include <skalibs/strerr2.h>
#include <skalibs/env.h>
#include <skalibs/djbunix.h>
#include <s6-networking/stls.h>
#include "stls-internal.h"
#define diecfg(cfg, s) strerr_diefu3x(96, (s), ": ", tls_config_error(cfg))
#define diectx(e, ctx, s) strerr_diefu3x(e, (s), ": ", tls_error(ctx))
int stls_s6tlsd (char const *const *argv, char const *const *envp, tain_t const *tto, uint32_t preoptions, uint32_t options, uid_t uid, gid_t gid, unsigned int verbosity)
{
int fds[5] = { 0, 1, 0, 1 } ;
struct tls *cctx ;
struct tls *ctx ;
struct tls_config *cfg ;
pid_t pid ;
char const *x ;
int wstat ;
if (tls_init() < 0) strerr_diefu1sys(111, "tls_init") ;
cfg = tls_config_new() ;
if (!cfg) strerr_diefu1sys(111, "tls_config_new") ;
x = env_get2(envp, "CERTFILE") ;
if (!x) strerr_dienotset(100, "CERTFILE") ;
if (tls_config_set_cert_file(cfg, x) < 0)
diecfg(cfg, "tls_config_set_cert_file") ;
x = env_get2(envp, "KEYFILE") ;
if (!x) strerr_dienotset(100, "KEYFILE") ;
if (tls_config_set_key_file(cfg, x) < 0)
diecfg(cfg, "tls_config_set_key_file") ;
if (tls_config_set_ciphers(cfg, "secure") < 0)
diecfg(cfg, "tls_config_set_ciphers") ;
if (tls_config_set_dheparams(cfg, "auto") < 0)
diecfg(cfg, "tls_config_set_dheparams") ;
if (tls_config_set_ecdhecurve(cfg, "auto") < 0)
diecfg(cfg, "tls_config_set_ecdhecurve") ;
if (preoptions & 1)
{
x = env_get2(envp, "CADIR") ;
if (x)
{
if (tls_config_set_ca_path(cfg, x) < 0)
diecfg(cfg, "tls_config_set_ca_path") ;
}
else
{
x = env_get2(envp, "CAFILE") ;
if (x)
{
if (tls_config_set_ca_file(cfg, x) < 0)
diecfg(cfg, "tls_config_set_ca_file") ;
}
else strerr_dienotset(100, "CADIR or CAFILE") ;
}
if (preoptions & 4) tls_config_verify_client(cfg) ;
else tls_config_verify_client_optional(cfg) ;
}
else tls_config_insecure_noverifycert(cfg) ;
tls_config_set_protocols(cfg, TLS_PROTOCOLS_DEFAULT) ;
tls_config_prefer_ciphers_server(cfg) ;
ctx = tls_server() ;
if (!ctx) strerr_diefu1sys(111, "tls_server") ;
if (tls_configure(ctx, cfg) < 0) diectx(97, ctx, "tls_configure") ;
tls_config_free(cfg) ;
pid = stls_prep_spawn_drop(argv, envp, fds, uid, gid, !!(preoptions & 2)) ;
if (tls_accept_fds(ctx, &cctx, fds[2], fds[3]) < 0)
diectx(97, ctx, "tls_accept_fds") ;
tls_free(ctx) ;
if (tls_handshake(cctx) < 0) diectx(97, cctx, "perform SSL handshake") ;
wstat = stls_run(cctx, fds, pid, verbosity, options, tto) ;
if (wstat < 0 && wait_pid(pid, &wstat) < 0) strerr_diefu1sys(111, "wait_pid") ;
return wait_estatus(wstat) ;
}
|
