15263807472

/* SPDX-License-Identifier: LGPL-2.1-or-later */

#include <syslog.h>

#include "sd-id128.h"

#include "glob-util.h"
#include "hexdecoct.h"
#include "path-util.h"
#include "string-table.h"
#include "string-util.h"
#include "syslog-util.h"
#include "unit-name.h"

int syslog_parse_priority(const char **p, int *priority, bool with_facility) {
        int a = 0, b = 0, c = 0;
        const char *end;
        size_t k;

        assert(p);
        assert(*p);
        assert(priority);

        if ((*p)[0] != '<')
                return 0;

        end = strchr(*p, '>');
        if (!end)
                return 0;

        k = end - *p;
        assert(k > 0);

        if (k == 2)
                c = undecchar((*p)[1]);
        else if (k == 3) {
                b = undecchar((*p)[1]);
                c = undecchar((*p)[2]);
        } else if (k == 4) {
                a = undecchar((*p)[1]);
                b = undecchar((*p)[2]);
                c = undecchar((*p)[3]);
        } else
                return 0;

        if (a < 0 || b < 0 || c < 0 ||
            (!with_facility && (a || b || c > 7)))
                return 0;

        if (with_facility)
                *priority = a*100 + b*10 + c;
        else
                *priority = (*priority & LOG_FACMASK) | c;

        *p += k + 1;
        return 1;
}

static const char *const log_facility_unshifted_table[LOG_NFACILITIES] = {
        [LOG_FAC(LOG_KERN)]     = "kern",
        [LOG_FAC(LOG_USER)]     = "user",
        [LOG_FAC(LOG_MAIL)]     = "mail",
        [LOG_FAC(LOG_DAEMON)]   = "daemon",
        [LOG_FAC(LOG_AUTH)]     = "auth",
        [LOG_FAC(LOG_SYSLOG)]   = "syslog",
        [LOG_FAC(LOG_LPR)]      = "lpr",
        [LOG_FAC(LOG_NEWS)]     = "news",
        [LOG_FAC(LOG_UUCP)]     = "uucp",
        [LOG_FAC(LOG_CRON)]     = "cron",
        [LOG_FAC(LOG_AUTHPRIV)] = "authpriv",
        [LOG_FAC(LOG_FTP)]      = "ftp",
        [LOG_FAC(LOG_LOCAL0)]   = "local0",
        [LOG_FAC(LOG_LOCAL1)]   = "local1",
        [LOG_FAC(LOG_LOCAL2)]   = "local2",
        [LOG_FAC(LOG_LOCAL3)]   = "local3",
        [LOG_FAC(LOG_LOCAL4)]   = "local4",
        [LOG_FAC(LOG_LOCAL5)]   = "local5",
        [LOG_FAC(LOG_LOCAL6)]   = "local6",
        [LOG_FAC(LOG_LOCAL7)]   = "local7",
};

DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(log_facility_unshifted, int, LOG_FAC(~0));

bool log_facility_unshifted_is_valid(int facility) {
        return facility >= 0 && facility <= LOG_FAC(~0);
}

static const char *const log_level_table[] = {
        [LOG_EMERG]   = "emerg",
        [LOG_ALERT]   = "alert",
        [LOG_CRIT]    = "crit",
        [LOG_ERR]     = "err",
        [LOG_WARNING] = "warning",
        [LOG_NOTICE]  = "notice",
        [LOG_INFO]    = "info",
        [LOG_DEBUG]   = "debug",
};

DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(log_level, int, LOG_DEBUG);

bool log_level_is_valid(int level) {
        return level >= 0 && level <= LOG_DEBUG;
}

/* The maximum size for a log namespace length. This is the file name size limit 255 minus the size of a
 * formatted machine ID minus a separator char */
#define LOG_NAMESPACE_MAX (NAME_MAX - (SD_ID128_STRING_MAX - 1) - 1)

bool log_namespace_name_valid(const char *s) {
        /* Let's make sure the namespace fits in a filename that is prefixed with the machine ID and a dot
         * (so that /var/log/journal/<machine-id>.<namespace> can be created based on it). Also make sure it
         * is suitable as unit instance name, and does not contain fishy characters. */

        if (!filename_is_valid(s))
                return false;

        if (strlen(s) > LOG_NAMESPACE_MAX)
                return false;

        if (!unit_instance_is_valid(s))
                return false;

        if (!string_is_safe(s))
                return false;

        /* Let's avoid globbing for now */
        if (string_is_glob(s))
                return false;

        return true;
}

1	/* SPDX-License-Identifier: LGPL-2.1-or-later */
2
3	#include <syslog.h>
4
5	#include "sd-id128.h"
6
7	#include "glob-util.h"
8	#include "hexdecoct.h"
9	#include "path-util.h"
10	#include "string-table.h"
11	#include "string-util.h"
12	#include "syslog-util.h"
13	#include "unit-name.h"
14
15	int syslog_parse_priority(const char *p, int priority, bool with_facility) {	950,358✔
16	int a = 0, b = 0, c = 0;	950,358✔
17	const char *end;	950,358✔
18	size_t k;	950,358✔
19
20	assert(p);	950,358✔
21	assert(*p);	950,358✔
22	assert(priority);	950,358✔
23
24	if ((*p)[0] != '<')	950,358✔
25	return 0;
26
27	end = strchr(*p, '>');	423✔
28	if (!end)	423✔
29	return 0;
30
31	k = end - *p;	423✔
32	assert(k > 0);	423✔
33
34	if (k == 2)	423✔
35	c = undecchar((*p)[1]);	9✔
36	else if (k == 3) {	414✔
37	b = undecchar((*p)[1]);	408✔
38	c = undecchar((*p)[2]);	408✔
39	} else if (k == 4) {	6✔
40	a = undecchar((*p)[1]);	2✔
41	b = undecchar((*p)[2]);	2✔
42	c = undecchar((*p)[3]);	2✔
43	} else
44	return 0;
45
46	if (a < 0 \|\| b < 0 \|\| c < 0 \|\|	419✔
47	(!with_facility && (a \|\| b \|\| c > 7)))	9✔
48	return 0;
49
50	if (with_facility)	7✔
51	priority = a100 + b*10 + c;	410✔
52	else
53	priority = (priority & LOG_FACMASK) \| c;	7✔
54
55	*p += k + 1;	417✔
56	return 1;	417✔
57	}
58
59	static const char *const log_facility_unshifted_table[LOG_NFACILITIES] = {
60	[LOG_FAC(LOG_KERN)] = "kern",
61	[LOG_FAC(LOG_USER)] = "user",
62	[LOG_FAC(LOG_MAIL)] = "mail",
63	[LOG_FAC(LOG_DAEMON)] = "daemon",
64	[LOG_FAC(LOG_AUTH)] = "auth",
65	[LOG_FAC(LOG_SYSLOG)] = "syslog",
66	[LOG_FAC(LOG_LPR)] = "lpr",
67	[LOG_FAC(LOG_NEWS)] = "news",
68	[LOG_FAC(LOG_UUCP)] = "uucp",
69	[LOG_FAC(LOG_CRON)] = "cron",
70	[LOG_FAC(LOG_AUTHPRIV)] = "authpriv",
71	[LOG_FAC(LOG_FTP)] = "ftp",
72	[LOG_FAC(LOG_LOCAL0)] = "local0",
73	[LOG_FAC(LOG_LOCAL1)] = "local1",
74	[LOG_FAC(LOG_LOCAL2)] = "local2",
75	[LOG_FAC(LOG_LOCAL3)] = "local3",
76	[LOG_FAC(LOG_LOCAL4)] = "local4",
77	[LOG_FAC(LOG_LOCAL5)] = "local5",
78	[LOG_FAC(LOG_LOCAL6)] = "local6",
79	[LOG_FAC(LOG_LOCAL7)] = "local7",
80	};
81
82	DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(log_facility_unshifted, int, LOG_FAC(~0));	291✔
83
UNCOV 84	bool log_facility_unshifted_is_valid(int facility) {	×
85	return facility >= 0 && facility <= LOG_FAC(~0);	×
86	}
87
88	static const char *const log_level_table[] = {
89	[LOG_EMERG] = "emerg",
90	[LOG_ALERT] = "alert",
91	[LOG_CRIT] = "crit",
92	[LOG_ERR] = "err",
93	[LOG_WARNING] = "warning",
94	[LOG_NOTICE] = "notice",
95	[LOG_INFO] = "info",
96	[LOG_DEBUG] = "debug",
97	};
98
99	DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(log_level, int, LOG_DEBUG);	51,251✔
100
101	bool log_level_is_valid(int level) {	700,778✔
102	return level >= 0 && level <= LOG_DEBUG;	700,778✔
103	}
104
105	/* The maximum size for a log namespace length. This is the file name size limit 255 minus the size of a
106	* formatted machine ID minus a separator char */
107	#define LOG_NAMESPACE_MAX (NAME_MAX - (SD_ID128_STRING_MAX - 1) - 1)
108
109	bool log_namespace_name_valid(const char *s) {	712✔
110	/* Let's make sure the namespace fits in a filename that is prefixed with the machine ID and a dot
111	* (so that /var/log/journal/<machine-id>.<namespace> can be created based on it). Also make sure it
112	* is suitable as unit instance name, and does not contain fishy characters. */
113
114	if (!filename_is_valid(s))	712✔
115	return false;
116
117	if (strlen(s) > LOG_NAMESPACE_MAX)	712✔
118	return false;
119
120	if (!unit_instance_is_valid(s))	712✔
121	return false;
122
123	if (!string_is_safe(s))	712✔
124	return false;
125
126	/* Let's avoid globbing for now */
127	if (string_is_glob(s))	712✔
UNCOV 128	return false;	×
129
130	return true;
131	}

systemd / systemd / 15263807472

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