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
|
/* ISC license. */
#include <stddef.h>
#include <stdlib.h>
#include <bearssl.h>
#include <skalibs/strerr2.h>
#include <skalibs/stralloc.h>
#include <skalibs/genalloc.h>
#include <skalibs/random.h>
#include <s6-networking/sbearssl.h>
#include "sbearssl-internal.h"
void sbearssl_client_init_and_run (int *fds, tain_t const *tto, uint32_t preoptions, uint32_t options, unsigned int verbosity, char const *servername, sbearssl_handshake_cb_t_ref cb, unsigned int notif)
{
stralloc storage = STRALLOC_ZERO ;
genalloc tas = GENALLOC_ZERO ;
size_t talen ;
if (preoptions & 1)
strerr_dief1x(100, "client certificates are not supported yet") ;
{
int r ;
char const *x = getenv("CADIR") ;
if (x)
r = sbearssl_ta_readdir(x, &tas, &storage) ;
else
{
x = getenv("CAFILE") ;
if (!x) strerr_dienotset(100, "CADIR or CAFILE") ;
r = sbearssl_ta_readfile(x, &tas, &storage) ;
}
if (r < 0)
strerr_diefu2sys(111, "read trust anchors in ", x) ;
else if (r)
strerr_diefu4x(96, "read trust anchors in ", x, ": ", sbearssl_error_str(r)) ;
talen = genalloc_len(sbearssl_ta, &tas) ;
if (!talen)
strerr_dief2x(96, "no trust anchor found in ", x) ;
}
sbearssl_drop() ;
{
sbearssl_handshake_cb_context_t cbarg = { .notif = notif } ;
unsigned char buf[BR_SSL_BUFSIZE_BIDI] ;
br_x509_minimal_context xc ;
br_ssl_client_context cc ;
br_x509_trust_anchor btas[talen] ;
size_t i = talen ;
stralloc_shrink(&storage) ;
while (i--)
sbearssl_ta_to(genalloc_s(sbearssl_ta, &tas) + i, btas + i, storage.s) ;
genalloc_free(sbearssl_ta, &tas) ;
br_ssl_client_init_full(&cc, &xc, btas, talen) ;
br_ssl_engine_add_flags(&cc.eng, BR_OPT_NO_RENEGOTIATION) ;
random_string((char *)buf, 32) ;
random_finish() ;
br_ssl_engine_inject_entropy(&cc.eng, buf, 32) ;
br_ssl_engine_set_buffer(&cc.eng, buf, sizeof(buf), 1) ;
if (!br_ssl_client_reset(&cc, servername, 0))
strerr_diefu2x(97, "reset client context: ", sbearssl_error_str(br_ssl_engine_last_error(&cc.eng))) ;
if (!sbearssl_x509_minimal_set_tain(&xc, &STAMP))
strerr_diefu1sys(111, "initialize validation time") ;
sbearssl_run(&cc.eng, fds, tto, options, verbosity, cb, &cbarg) ;
}
}
|
