1#ifndef __UTILS_H__
2#define __UTILS_H__ 1
3
4#include <sys/types.h>
5#include <asm/types.h>
6#include <resolv.h>
7#include <stdlib.h>
8#include <stdbool.h>
9
10#include "libnetlink.h"
11#include "ll_map.h"
12#include "rtm_map.h"
13
14extern int preferred_family;
15extern int human_readable;
16extern int use_iec;
17extern int show_stats;
18extern int show_details;
19extern int show_raw;
20extern int resolve_hosts;
21extern int oneline;
22extern int brief;
23extern int timestamp;
24extern int timestamp_short;
25extern const char * _SL_;
26extern int max_flush_loops;
27extern int batch_mode;
28extern bool do_all;
29
30#ifndef IPPROTO_ESP
31#define IPPROTO_ESP	50
32#endif
33#ifndef IPPROTO_AH
34#define IPPROTO_AH	51
35#endif
36#ifndef IPPROTO_COMP
37#define IPPROTO_COMP	108
38#endif
39#ifndef IPSEC_PROTO_ANY
40#define IPSEC_PROTO_ANY	255
41#endif
42
43#ifndef CONFDIR
44#define CONFDIR		"/etc/iproute2"
45#endif
46
47#define SPRINT_BSIZE 64
48#define SPRINT_BUF(x)	char x[SPRINT_BSIZE]
49
50void incomplete_command(void) __attribute__((noreturn));
51
52#define NEXT_ARG() do { argv++; if (--argc <= 0) incomplete_command(); } while(0)
53#define NEXT_ARG_OK() (argc - 1 > 0)
54#define NEXT_ARG_FWD() do { argv++; argc--; } while(0)
55#define PREV_ARG() do { argv--; argc++; } while(0)
56
57typedef struct
58{
59	__u16 flags;
60	__u16 bytelen;
61	__s16 bitlen;
62	/* These next two fields match rtvia */
63	__u16 family;
64	__u32 data[8];
65} inet_prefix;
66
67#define PREFIXLEN_SPECIFIED 1
68
69#define DN_MAXADDL 20
70#ifndef AF_DECnet
71#define AF_DECnet 12
72#endif
73
74struct dn_naddr
75{
76        unsigned short          a_len;
77        unsigned char a_addr[DN_MAXADDL];
78};
79
80#define IPX_NODE_LEN 6
81
82struct ipx_addr {
83	u_int32_t ipx_net;
84	u_int8_t  ipx_node[IPX_NODE_LEN];
85};
86
87#ifndef AF_MPLS
88# define AF_MPLS 28
89#endif
90
91/* Maximum number of labels the mpls helpers support */
92#define MPLS_MAX_LABELS 8
93
94__u32 get_addr32(const char *name);
95int get_addr_1(inet_prefix *dst, const char *arg, int family);
96int get_prefix_1(inet_prefix *dst, char *arg, int family);
97int get_addr(inet_prefix *dst, const char *arg, int family);
98int get_prefix(inet_prefix *dst, char *arg, int family);
99int mask2bits(__u32 netmask);
100int get_addr_ila(__u64 *val, const char *arg);
101
102int get_integer(int *val, const char *arg, int base);
103int get_unsigned(unsigned *val, const char *arg, int base);
104int get_time_rtt(unsigned *val, const char *arg, int *raw);
105#define get_byte get_u8
106#define get_ushort get_u16
107#define get_short get_s16
108int get_u64(__u64 *val, const char *arg, int base);
109int get_u32(__u32 *val, const char *arg, int base);
110int get_s32(__s32 *val, const char *arg, int base);
111int get_u16(__u16 *val, const char *arg, int base);
112int get_s16(__s16 *val, const char *arg, int base);
113int get_u8(__u8 *val, const char *arg, int base);
114int get_s8(__s8 *val, const char *arg, int base);
115int get_addr64(__u64 *ap, const char *cp);
116
117char* hexstring_n2a(const __u8 *str, int len, char *buf, int blen);
118__u8* hexstring_a2n(const char *str, __u8 *buf, int blen);
119#define ADDR64_BUF_SIZE sizeof("xxxx:xxxx:xxxx:xxxx")
120int addr64_n2a(__u64 addr, char *buff, size_t len);
121
122int af_bit_len(int af);
123int af_byte_len(int af);
124
125const char *format_host(int af, int len, const void *addr,
126			       char *buf, int buflen);
127const char *rt_addr_n2a(int af, int len, const void *addr,
128			       char *buf, int buflen);
129
130int read_family(const char *name);
131const char *family_name(int family);
132
133void missarg(const char *) __attribute__((noreturn));
134void invarg(const char *, const char *) __attribute__((noreturn));
135void duparg(const char *, const char *) __attribute__((noreturn));
136void duparg2(const char *, const char *) __attribute__((noreturn));
137int matches(const char *arg, const char *pattern);
138int inet_addr_match(const inet_prefix *a, const inet_prefix *b, int bits);
139
140const char *dnet_ntop(int af, const void *addr, char *str, size_t len);
141int dnet_pton(int af, const char *src, void *addr);
142
143const char *ipx_ntop(int af, const void *addr, char *str, size_t len);
144int ipx_pton(int af, const char *src, void *addr);
145
146const char *mpls_ntop(int af, const void *addr, char *str, size_t len);
147int mpls_pton(int af, const char *src, void *addr);
148
149extern int __iproute2_hz_internal;
150int __get_hz(void);
151
152static __inline__ int get_hz(void)
153{
154	if (__iproute2_hz_internal == 0)
155		__iproute2_hz_internal = __get_hz();
156	return __iproute2_hz_internal;
157}
158
159extern int __iproute2_user_hz_internal;
160int __get_user_hz(void);
161
162static __inline__ int get_user_hz(void)
163{
164	if (__iproute2_user_hz_internal == 0)
165		__iproute2_user_hz_internal = __get_user_hz();
166	return __iproute2_user_hz_internal;
167}
168
169static inline __u32 nl_mgrp(__u32 group)
170{
171	if (group > 31 ) {
172		fprintf(stderr, "Use setsockopt for this group %d\n", group);
173		exit(-1);
174	}
175	return group ? (1 << (group - 1)) : 0;
176}
177
178
179int print_timestamp(FILE *fp);
180void print_nlmsg_timestamp(FILE *fp, const struct nlmsghdr *n);
181
182#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
183
184#define BUILD_BUG_ON(cond) ((void)sizeof(char[1 - 2 * !!(cond)]))
185
186#ifndef offsetof
187# define offsetof(type, member) ((size_t) &((type *)0)->member)
188#endif
189
190#ifndef min
191# define min(x, y) ({			\
192	typeof(x) _min1 = (x);		\
193	typeof(y) _min2 = (y);		\
194	(void) (&_min1 == &_min2);	\
195	_min1 < _min2 ? _min1 : _min2; })
196#endif
197
198#ifndef __check_format_string
199# define __check_format_string(pos_str, pos_args) \
200	__attribute__ ((format (printf, (pos_str), (pos_args))))
201#endif
202
203#define _textify(x)	#x
204#define textify(x)	_textify(x)
205
206#define htonll(x) ((1==htonl(1)) ? (x) : ((uint64_t)htonl((x) & 0xFFFFFFFF) << 32) | htonl((x) >> 32))
207#define ntohll(x) ((1==ntohl(1)) ? (x) : ((uint64_t)ntohl((x) & 0xFFFFFFFF) << 32) | ntohl((x) >> 32))
208
209extern int cmdlineno;
210ssize_t getcmdline(char **line, size_t *len, FILE *in);
211int makeargs(char *line, char *argv[], int maxargs);
212int inet_get_addr(const char *src, __u32 *dst, struct in6_addr *dst6);
213
214struct iplink_req;
215int iplink_parse(int argc, char **argv, struct iplink_req *req,
216		char **name, char **type, char **link, char **dev,
217		int *group, int *index);
218
219int do_each_netns(int (*func)(char *nsname, void *arg), void *arg,
220		bool show_label);
221
222char *int_to_str(int val, char *buf);
223
224#endif /* __UTILS_H__ */
225