1 /*
2 Copyright 2021 Northern.tech AS
3
4 This file is part of CFEngine 3 - written and maintained by Northern.tech AS.
5
6 This program is free software; you can redistribute it and/or modify it
7 under the terms of the GNU General Public License as published by the
8 Free Software Foundation; version 3.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
18
19 To the extent this program is licensed as part of the Enterprise
20 versions of CFEngine, the applicable Commercial Open Source License
21 (COSL) may apply to this file if you as a licensee so wish it. See
22 included file COSL.txt.
23 */
24
25 #include <cf3.defs.h>
26
27 #include <keyring.h>
28 #include <dir.h>
29 #include <file_lib.h>
30 #include <known_dirs.h>
31
32 /***************************************************************/
33
HostKeyAddressUnknown(const char * value)34 bool HostKeyAddressUnknown(const char *value)
35 {
36 if (strcmp(value, "location unknown") == 0)
37 {
38 return true;
39 }
40
41 // Is there some other non-ip string left over?
42
43 if (!((strchr(value, '.')) || (strchr(value, ':'))))
44 {
45 return false;
46 }
47
48 return false;
49 }
50
51 /***************************************************************/
52
RemovePublicKey(const char * id)53 int RemovePublicKey(const char *id)
54 {
55 Dir *dirh = NULL;
56 int removed = 0;
57 char keysdir[CF_BUFSIZE];
58 const struct dirent *dirp;
59 char suffix[CF_BUFSIZE];
60
61 snprintf(keysdir, CF_BUFSIZE, "%s/ppkeys", GetWorkDir());
62
63 MapName(keysdir);
64
65 if ((dirh = DirOpen(keysdir)) == NULL)
66 {
67 if (errno == ENOENT)
68 {
69 return 0;
70 }
71 else
72 {
73 Log(LOG_LEVEL_ERR, "Unable to open keys directory at '%s'. (opendir: %s)", keysdir, GetErrorStr());
74 return -1;
75 }
76 }
77
78 snprintf(suffix, CF_BUFSIZE, "-%s.pub", id);
79
80 while ((dirp = DirRead(dirh)) != NULL)
81 {
82 char *c = strstr(dirp->d_name, suffix);
83
84 if (c && c[strlen(suffix)] == '\0') /* dirp->d_name ends with suffix */
85 {
86 char keyfilename[sizeof(keysdir) + sizeof(dirp->d_name)];
87 // both sizeof's include NUL, so one of those is for the '/'
88
89 snprintf(keyfilename, sizeof(keyfilename), "%s/%s", keysdir, dirp->d_name);
90 MapName(keyfilename);
91
92 if (unlink(keyfilename) < 0)
93 {
94 if (errno != ENOENT)
95 {
96 Log(LOG_LEVEL_ERR, "Unable to remove key file '%s'. (unlink: %s)", dirp->d_name, GetErrorStr());
97 DirClose(dirh);
98 return -1;
99 }
100 }
101 else
102 {
103 removed++;
104 }
105 }
106 }
107
108 if (errno)
109 {
110 Log(LOG_LEVEL_ERR, "Unable to enumerate files in keys directory. (ReadDir: %s)", GetErrorStr());
111 DirClose(dirh);
112 return -1;
113 }
114
115 DirClose(dirh);
116 return removed;
117 }
118 /***************************************************************/
119