1
2#ifndef __UTILS_H__
3#define __UTILS_H__ 1
4
5#include <sys/types.h>
6#include <asm/types.h>
7#include <resolv.h>
8#include <stdlib.h>
9#include <stdbool.h>
10#include <time.h>
11#include <stdint.h>
12
13#ifdef HAVE_LIBBSD
14#include <bsd/string.h>
15#endif
16
17#include "libnetlink.h"
18#include "ll_map.h"
19#include "rtm_map.h"
20#include "json_print.h"
21
22extern int preferred_family;
23extern int human_readable;
24extern int show_stats;
25extern int show_details;
26extern int show_raw;
27extern int resolve_hosts;
28extern int oneline;
29extern int brief;
30extern int json;
31extern int pretty;
32extern int timestamp;
33extern int timestamp_short;
34extern const char * _SL_;
35extern int max_flush_loops;
36extern int batch_mode;
37extern int numeric;
38extern bool do_all;
39
40#ifndef CONFDIR
41#define CONFDIR "/etc/iproute2"
42#endif
43
44#define SPRINT_BSIZE 64
45#define SPRINT_BUF(x) char x[SPRINT_BSIZE]
46
47void incomplete_command(void) __attribute__((noreturn));
48
49#define NEXT_ARG() do { argv++; if (--argc <= 0) incomplete_command(); } while(0)
50#define NEXT_ARG_OK() (argc - 1 > 0)
51#define NEXT_ARG_FWD() do { argv++; argc--; } while(0)
52#define PREV_ARG() do { argv--; argc++; } while(0)
53
54
55#define MAX_ARGS 512
56
57#define TIME_UNITS_PER_SEC 1000000
58#define NSEC_PER_USEC 1000
59#define NSEC_PER_MSEC 1000000
60#define NSEC_PER_SEC 1000000000LL
61
62typedef struct
63{
64 __u16 flags;
65 __u16 bytelen;
66 __s16 bitlen;
67
68 __u16 family;
69 __u32 data[64];
70} inet_prefix;
71
72enum {
73 PREFIXLEN_SPECIFIED = (1 << 0),
74 ADDRTYPE_INET = (1 << 1),
75 ADDRTYPE_UNSPEC = (1 << 2),
76 ADDRTYPE_MULTI = (1 << 3),
77
78 ADDRTYPE_INET_UNSPEC = ADDRTYPE_INET | ADDRTYPE_UNSPEC,
79 ADDRTYPE_INET_MULTI = ADDRTYPE_INET | ADDRTYPE_MULTI
80};
81
82static inline void inet_prefix_reset(inet_prefix *p)
83{
84 p->flags = 0;
85}
86
87static inline bool is_addrtype_inet(const inet_prefix *p)
88{
89 return p->flags & ADDRTYPE_INET;
90}
91
92static inline bool is_addrtype_inet_unspec(const inet_prefix *p)
93{
94 return (p->flags & ADDRTYPE_INET_UNSPEC) == ADDRTYPE_INET_UNSPEC;
95}
96
97static inline bool is_addrtype_inet_multi(const inet_prefix *p)
98{
99 return (p->flags & ADDRTYPE_INET_MULTI) == ADDRTYPE_INET_MULTI;
100}
101
102static inline bool is_addrtype_inet_not_unspec(const inet_prefix *p)
103{
104 return (p->flags & ADDRTYPE_INET_UNSPEC) == ADDRTYPE_INET;
105}
106
107static inline bool is_addrtype_inet_not_multi(const inet_prefix *p)
108{
109 return (p->flags & ADDRTYPE_INET_MULTI) == ADDRTYPE_INET;
110}
111
112#define DN_MAXADDL 20
113#ifndef AF_DECnet
114#define AF_DECnet 12
115#endif
116
117struct dn_naddr
118{
119 unsigned short a_len;
120 unsigned char a_addr[DN_MAXADDL];
121};
122
123#ifndef AF_MPLS
124# define AF_MPLS 28
125#endif
126#ifndef IPPROTO_MPLS
127#define IPPROTO_MPLS 137
128#endif
129
130#ifndef CLOCK_TAI
131# define CLOCK_TAI 11
132#endif
133
134#ifndef AF_XDP
135# define AF_XDP 44
136# if AF_MAX < 45
137# undef AF_MAX
138# define AF_MAX 45
139# endif
140#endif
141
142__u32 get_addr32(const char *name);
143int get_addr_1(inet_prefix *dst, const char *arg, int family);
144int get_prefix_1(inet_prefix *dst, char *arg, int family);
145int get_addr(inet_prefix *dst, const char *arg, int family);
146int get_prefix(inet_prefix *dst, char *arg, int family);
147int mask2bits(__u32 netmask);
148int get_addr_rta(inet_prefix *dst, const struct rtattr *rta, int family);
149int get_addr_ila(__u64 *val, const char *arg);
150
151int read_prop(const char *dev, char *prop, long *value);
152int get_hex(char c);
153int get_integer(int *val, const char *arg, int base);
154int get_unsigned(unsigned *val, const char *arg, int base);
155int get_time_rtt(unsigned *val, const char *arg, int *raw);
156#define get_byte get_u8
157#define get_ushort get_u16
158#define get_short get_s16
159int get_s64(__s64 *val, const char *arg, int base);
160int get_u64(__u64 *val, const char *arg, int base);
161int get_u32(__u32 *val, const char *arg, int base);
162int get_s32(__s32 *val, const char *arg, int base);
163int get_u16(__u16 *val, const char *arg, int base);
164int get_u8(__u8 *val, const char *arg, int base);
165int get_be64(__be64 *val, const char *arg, int base);
166int get_be32(__be32 *val, const char *arg, int base);
167int get_be16(__be16 *val, const char *arg, int base);
168int get_addr64(__u64 *ap, const char *cp);
169int get_rate(unsigned int *rate, const char *str);
170int get_rate64(__u64 *rate, const char *str);
171int get_size(unsigned int *size, const char *str);
172
173int hex2mem(const char *buf, uint8_t *mem, int count);
174char *hexstring_n2a(const __u8 *str, int len, char *buf, int blen);
175__u8 *hexstring_a2n(const char *str, __u8 *buf, int blen, unsigned int *len);
176#define ADDR64_BUF_SIZE sizeof("xxxx:xxxx:xxxx:xxxx")
177int addr64_n2a(__u64 addr, char *buff, size_t len);
178
179int af_bit_len(int af);
180
181const char *format_host_r(int af, int len, const void *addr,
182 char *buf, int buflen);
183#define format_host_rta_r(af, rta, buf, buflen) \
184 format_host_r(af, RTA_PAYLOAD(rta), RTA_DATA(rta), \
185 buf, buflen)
186
187const char *format_host(int af, int lne, const void *addr);
188#define format_host_rta(af, rta) \
189 format_host(af, RTA_PAYLOAD(rta), RTA_DATA(rta))
190const char *rt_addr_n2a_r(int af, int len, const void *addr,
191 char *buf, int buflen);
192const char *rt_addr_n2a(int af, int len, const void *addr);
193#define rt_addr_n2a_rta(af, rta) \
194 rt_addr_n2a(af, RTA_PAYLOAD(rta), RTA_DATA(rta))
195
196int read_family(const char *name);
197const char *family_name(int family);
198
199void missarg(const char *) __attribute__((noreturn));
200void invarg(const char *, const char *) __attribute__((noreturn));
201void duparg(const char *, const char *) __attribute__((noreturn));
202void duparg2(const char *, const char *) __attribute__((noreturn));
203int nodev(const char *dev);
204int check_ifname(const char *);
205int check_altifname(const char *name);
206int get_ifname(char *, const char *);
207const char *get_ifname_rta(int ifindex, const struct rtattr *rta);
208bool matches(const char *prefix, const char *string);
209int inet_addr_match(const inet_prefix *a, const inet_prefix *b, int bits);
210int inet_addr_match_rta(const inet_prefix *m, const struct rtattr *rta);
211
212const char *mpls_ntop(int af, const void *addr, char *str, size_t len);
213int mpls_pton(int af, const char *src, void *addr, size_t alen);
214
215extern int __iproute2_hz_internal;
216int __get_hz(void);
217
218static __inline__ int get_hz(void)
219{
220 if (__iproute2_hz_internal == 0)
221 __iproute2_hz_internal = __get_hz();
222 return __iproute2_hz_internal;
223}
224
225extern int __iproute2_user_hz_internal;
226int __get_user_hz(void);
227
228static __inline__ int get_user_hz(void)
229{
230 if (__iproute2_user_hz_internal == 0)
231 __iproute2_user_hz_internal = __get_user_hz();
232 return __iproute2_user_hz_internal;
233}
234
235static inline __u32 nl_mgrp(__u32 group)
236{
237 if (group > 31 ) {
238 fprintf(stderr, "Use setsockopt for this group %d\n", group);
239 exit(-1);
240 }
241 return group ? (1 << (group - 1)) : 0;
242}
243
244
245static inline unsigned long __tv_to_jiffies(const struct timeval *tv)
246{
247 unsigned long long jif;
248
249 jif = 1000000ULL * tv->tv_sec + tv->tv_usec;
250
251 return jif/10000;
252}
253
254static inline void __jiffies_to_tv(struct timeval *tv, unsigned long jiffies)
255{
256 unsigned long long tvusec;
257
258 tvusec = 10000ULL*jiffies;
259 tv->tv_sec = tvusec/1000000;
260 tv->tv_usec = tvusec - 1000000 * tv->tv_sec;
261}
262
263void print_escape_buf(const __u8 *buf, size_t len, const char *escape);
264
265int print_timestamp(FILE *fp);
266void print_nlmsg_timestamp(FILE *fp, const struct nlmsghdr *n);
267
268unsigned int print_name_and_link(const char *fmt,
269 const char *name, struct rtattr *tb[]);
270
271#define BIT(nr) (UINT64_C(1) << (nr))
272
273#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
274
275#define BUILD_BUG_ON(cond) ((void)sizeof(char[1 - 2 * !!(cond)]))
276
277#ifndef offsetof
278# define offsetof(type, member) ((size_t) &((type *)0)->member)
279#endif
280
281#ifndef min
282# define min(x, y) ({ \
283 typeof(x) _min1 = (x); \
284 typeof(y) _min2 = (y); \
285 (void) (&_min1 == &_min2); \
286 _min1 < _min2 ? _min1 : _min2; })
287#endif
288
289#ifndef __check_format_string
290# define __check_format_string(pos_str, pos_args) \
291 __attribute__ ((format (printf, (pos_str), (pos_args))))
292#endif
293
294#define _textify(x) #x
295#define textify(x) _textify(x)
296
297#define htonll(x) ((1==htonl(1)) ? (x) : ((uint64_t)htonl((x) & 0xFFFFFFFF) << 32) | htonl((x) >> 32))
298#define ntohll(x) ((1==ntohl(1)) ? (x) : ((uint64_t)ntohl((x) & 0xFFFFFFFF) << 32) | ntohl((x) >> 32))
299
300extern int cmdlineno;
301ssize_t getcmdline(char **line, size_t *len, FILE *in);
302int makeargs(char *line, char *argv[], int maxargs);
303
304char *int_to_str(int val, char *buf);
305int get_guid(__u64 *guid, const char *arg);
306int get_real_family(int rtm_type, int rtm_family);
307
308int cmd_exec(const char *cmd, char **argv, bool do_fork,
309 int (*setup)(void *), void *arg);
310int make_path(const char *path, mode_t mode);
311char *find_cgroup2_mount(bool do_mount);
312__u64 get_cgroup2_id(const char *path);
313char *get_cgroup2_path(__u64 id, bool full);
314int get_command_name(const char *pid, char *comm, size_t len);
315char *get_task_name(pid_t pid);
316
317int get_rtnl_link_stats_rta(struct rtnl_link_stats64 *stats64,
318 struct rtattr *tb[]);
319
320#ifdef NEED_STRLCPY
321size_t strlcpy(char *dst, const char *src, size_t size);
322size_t strlcat(char *dst, const char *src, size_t size);
323#endif
324
325void drop_cap(void);
326
327int get_time(unsigned int *time, const char *str);
328int get_time64(__s64 *time, const char *str);
329char *sprint_time(__u32 time, char *buf);
330char *sprint_time64(__s64 time, char *buf);
331
332int do_batch(const char *name, bool force,
333 int (*cmd)(int argc, char *argv[], void *user), void *user);
334
335int parse_one_of(const char *msg, const char *realval, const char * const *list,
336 size_t len, int *p_err);
337bool parse_on_off(const char *msg, const char *realval, int *p_err);
338
339int parse_mapping_num_all(__u32 *keyp, const char *key);
340int parse_mapping_gen(int *argcp, char ***argvp,
341 int (*key_cb)(__u32 *keyp, const char *key),
342 int (*mapping_cb)(__u32 key, char *value, void *data),
343 void *mapping_cb_data);
344int parse_mapping(int *argcp, char ***argvp, bool allow_all,
345 int (*mapping_cb)(__u32 key, char *value, void *data),
346 void *mapping_cb_data);
347
348struct str_num_map {
349 const char *str;
350 unsigned int num;
351};
352
353int str_map_lookup_str(const struct str_num_map *map, const char *needle);
354const char *str_map_lookup_uint(const struct str_num_map *map,
355 unsigned int val);
356const char *str_map_lookup_u16(const struct str_num_map *map, uint16_t val);
357const char *str_map_lookup_u8(const struct str_num_map *map, uint8_t val);
358
359unsigned int get_str_char_count(const char *str, int match);
360int str_split_by_char(char *str, char **before, char **after, int match);
361
362#define INDENT_STR_MAXLEN 32
363
364struct indent_mem {
365 int indent_level;
366 char indent_str[INDENT_STR_MAXLEN + 1];
367};
368
369struct indent_mem *alloc_indent_mem(void);
370void free_indent_mem(struct indent_mem *mem);
371void inc_indent(struct indent_mem *mem);
372void dec_indent(struct indent_mem *mem);
373void print_indent(struct indent_mem *mem);
374
375#endif
376
