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
|
/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include "parse-util.h"
#include "varlink-internal.h"
#include "varlink-serialize.h"
int varlink_server_serialize(sd_varlink_server *s, FILE *f, FDSet *fds) {
assert(f);
assert(fds);
if (!s)
return 0;
LIST_FOREACH(sockets, ss, s->sockets) {
int copy;
assert(ss->address);
assert(ss->fd >= 0);
fprintf(f, "varlink-server-socket-address=%s", ss->address);
/* If we fail to serialize the fd, it will be considered an error during deserialization */
copy = fdset_put_dup(fds, ss->fd);
if (copy < 0)
return copy;
fprintf(f, " varlink-server-socket-fd=%i", copy);
fputc('\n', f);
}
return 0;
}
int varlink_server_deserialize_one(sd_varlink_server *s, const char *value, FDSet *fds) {
_cleanup_(varlink_server_socket_freep) VarlinkServerSocket *ss = NULL;
_cleanup_free_ char *address = NULL;
const char *v = ASSERT_PTR(value);
int r, fd = -EBADF;
char *buf;
size_t n;
assert(s);
assert(fds);
n = strcspn(v, " ");
address = strndup(v, n);
if (!address)
return log_oom_debug();
if (v[n] != ' ')
return varlink_server_log_errno(s, SYNTHETIC_ERRNO(EINVAL),
"Failed to deserialize sd_varlink_server_socket: %s: %m", value);
v = startswith(v + n + 1, "varlink-server-socket-fd=");
if (!v)
return varlink_server_log_errno(s, SYNTHETIC_ERRNO(EINVAL),
"Failed to deserialize VarlinkServerSocket fd %s: %m", value);
n = strcspn(v, " ");
buf = strndupa_safe(v, n);
fd = parse_fd(buf);
if (fd < 0)
return varlink_server_log_errno(s, fd, "Unable to parse VarlinkServerSocket varlink-server-socket-fd=%s: %m", buf);
if (!fdset_contains(fds, fd))
return varlink_server_log_errno(s, SYNTHETIC_ERRNO(EBADF),
"VarlinkServerSocket varlink-server-socket-fd= has unknown fd %d: %m", fd);
ss = new(VarlinkServerSocket, 1);
if (!ss)
return log_oom_debug();
*ss = (VarlinkServerSocket) {
.server = s,
.address = TAKE_PTR(address),
.fd = fdset_remove(fds, fd),
};
r = varlink_server_add_socket_event_source(s, ss, SD_EVENT_PRIORITY_NORMAL);
if (r < 0)
return varlink_server_log_errno(s, r, "Failed to add VarlinkServerSocket event source to the event loop: %m");
LIST_PREPEND(sockets, s->sockets, TAKE_PTR(ss));
return 0;
}
|
