Mercurial > hg > toybox
annotate toys/pending/ifconfig.c @ 856:e93ae8a32a26
ifconfig uses __caddr_t in one location; this is not guaranteed to work everywhere. It does not compile OOB on musl, so I changed it to the portable equivalent, char *. This compiles on musl, and should compile anywhere.
| author | Isaac Dunham <idunham@lavabit.com> |
|---|---|
| date | Sun, 14 Apr 2013 02:58:12 -0500 |
| parents | 6be04ec7b7ac |
| children | 35b059e1654b |
| rev | line source |
|---|---|
| 841 | 1 /* ifconfig.c - Configure network interface. |
| 2 * | |
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3 * Copyright 2012 Ranjan Kumar <ranjankumar.bth@gmail.com> |
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f8250900f94b
More ifconfig cleanups, mostly removing unused code.
Rob Landley <rob@landley.net>
parents:
843
diff
changeset
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4 * Copyright 2012 Kyungwan Han <asura321@gamil.com> |
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f8250900f94b
More ifconfig cleanups, mostly removing unused code.
Rob Landley <rob@landley.net>
parents:
843
diff
changeset
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5 * Reviewed by Kyungsu Kim <kaspyx@gmail.com> |
| 841 | 6 * |
| 7 * Not in SUSv4. | |
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parents:
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changeset
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8 |
| 841 | 9 USE_IFCONFIG(NEWTOY(ifconfig, "?a", TOYFLAG_BIN)) |
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parents:
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changeset
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10 |
| 841 | 11 config IFCONFIG |
| 12 bool "ifconfig" | |
| 852 | 13 default n |
| 841 | 14 help |
| 15 usage: ifconfig [-a] interface [address] | |
| 16 | |
| 17 Configure network interface. | |
| 18 | |
| 19 [add ADDRESS[/PREFIXLEN]] | |
| 20 [del ADDRESS[/PREFIXLEN]] | |
| 21 [[-]broadcast [ADDRESS]] [[-]pointopoint [ADDRESS]] | |
| 22 [netmask ADDRESS] [dstaddr ADDRESS] | |
| 23 [outfill NN] [keepalive NN] | |
| 24 [hw ether|infiniband ADDRESS] [metric NN] [mtu NN] | |
| 25 [[-]trailers] [[-]arp] [[-]allmulti] | |
| 26 [multicast] [[-]promisc] [txqueuelen NN] [[-]dynamic] | |
| 27 [mem_start NN] [io_addr NN] [irq NN] | |
| 28 [up|down] ... | |
| 29 */ | |
| 30 | |
| 31 #define FOR_ifconfig | |
| 32 #include "toys.h" | |
| 33 #include "toynet.h" | |
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34 |
| 841 | 35 #include <net/route.h> |
| 36 #include <sys/un.h> | |
| 37 #include <net/if.h> | |
| 38 #include <net/if_arp.h> | |
| 39 #include <net/ethernet.h> | |
| 40 #include <alloca.h> | |
| 41 | |
| 42 typedef struct sockaddr_with_len { | |
| 43 union { | |
| 44 struct sockaddr sock; | |
| 45 struct sockaddr_in sock_in; | |
| 46 struct sockaddr_in6 sock_in6; | |
| 47 }sock_u; | |
| 48 socklen_t socklen; | |
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parents:
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changeset
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49 } sockaddr_with_len; |
| 841 | 50 |
| 51 void setport(struct sockaddr *, unsigned); | |
| 852 | 52 unsigned get_strtou(char *, char **, int); |
| 53 char *address_to_name(struct sockaddr *); | |
| 54 sockaddr_with_len *get_sockaddr(char *, int, sa_family_t); | |
| 841 | 55 |
| 56 typedef struct _proc_net_dev_info { | |
| 57 char ifrname[IFNAMSIZ]; //interface name. | |
| 58 unsigned long long receive_bytes; //total bytes received | |
| 59 unsigned long long receive_packets; //total packets received | |
| 60 unsigned long receive_errors; //bad packets received | |
| 61 unsigned long receive_drop; //no space in linux buffers | |
| 62 unsigned long receive_fifo; //receiver fifo overrun | |
| 63 unsigned long receive_frame; //received frame alignment error | |
| 64 unsigned long receive_compressed; | |
| 65 unsigned long receive_multicast; //multicast packets received | |
| 66 | |
| 67 unsigned long long transmit_bytes; //total bytes transmitted | |
| 68 unsigned long long transmit_packets; //total packets transmitted | |
| 69 unsigned long transmit_errors; //packet transmit problems | |
| 70 unsigned long transmit_drop; //no space available in linux | |
| 71 unsigned long transmit_fifo; | |
| 72 unsigned long transmit_colls; | |
| 73 unsigned long transmit_carrier; | |
| 74 unsigned long transmit_compressed; //num_tr_compressed; | |
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parents:
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diff
changeset
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75 } PROC_NET_DEV_INFO; |
| 841 | 76 |
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parents:
843
diff
changeset
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77 // man netdevice |
| 841 | 78 typedef struct _iface_list { |
| 79 int hw_type; | |
| 80 short ifrflags; //used for addr, broadcast, and mask. | |
| 81 short ifaddr; //if set print ifraddr, irrdstaddr, ifrbroadaddr and ifrnetmask. | |
| 82 struct sockaddr ifraddr; | |
| 83 struct sockaddr ifrdstaddr; | |
| 84 struct sockaddr ifrbroadaddr; | |
| 85 struct sockaddr ifrnetmask; | |
| 86 struct sockaddr ifrhwaddr; | |
| 87 int ifrmtu; | |
| 88 int ifrmetric; | |
| 89 PROC_NET_DEV_INFO dev_info; | |
| 90 int txqueuelen; | |
| 91 struct ifmap ifrmap; | |
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af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
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92 int non_virtual_iface; |
| 841 | 93 struct _iface_list *next; //, *prev; |
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parents:
843
diff
changeset
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94 } IFACE_LIST; |
| 841 | 95 |
| 96 | |
| 97 #define HW_NAME_LEN 20 | |
| 98 #define HW_TITLE_LEN 30 | |
| 99 | |
| 100 typedef struct _hw_info { | |
| 101 char hw_name[HW_NAME_LEN]; | |
| 102 char hw_title[HW_TITLE_LEN]; | |
| 103 int hw_addrlen; | |
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More ifconfig cleanups, mostly removing unused code.
Rob Landley <rob@landley.net>
parents:
843
diff
changeset
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104 } HW_INFO; |
| 841 | 105 |
| 852 | 106 static char *field_format[] = { |
| 841 | 107 "%n%llu%u%u%u%u%n%n%n%llu%u%u%u%u%u", |
| 108 "%llu%llu%u%u%u%u%n%n%llu%llu%u%u%u%u%u", | |
| 109 "%llu%llu%u%u%u%u%u%u%llu%llu%u%u%u%u%u%u" | |
| 110 }; | |
| 111 | |
| 112 #define NO_RANGE -1 | |
| 113 #define IO_MAP_INDEX 0x100 | |
| 114 | |
| 115 static int show_iface(char *iface_name); | |
| 116 static void print_ip6_addr(IFACE_LIST *l_ptr); | |
| 117 static void clear_list(void); | |
| 118 | |
| 119 //from /net/if.h | |
| 120 static char *iface_flags_str[] = { | |
| 121 "UP", | |
| 122 "BROADCAST", | |
| 123 "DEBUG", | |
| 124 "LOOPBACK", | |
| 125 "POINTOPOINT", | |
| 126 "NOTRAILERS", | |
| 127 "RUNNING", | |
| 128 "NOARP", | |
| 129 "PROMISC", | |
| 130 "ALLMULTI", | |
| 131 "MASTER", | |
| 132 "SLAVE", | |
| 133 "MULTICAST", | |
| 134 "PORTSEL", | |
| 135 "AUTOMEDIA", | |
| 136 "DYNAMIC", | |
| 137 NULL | |
| 138 }; | |
| 139 //from /usr/include/linux/netdevice.h | |
| 140 #ifdef IFF_PORTSEL | |
| 141 //Media selection options. | |
| 142 # ifndef IF_PORT_UNKNOWN | |
| 143 enum { | |
| 144 IF_PORT_UNKNOWN = 0, | |
| 145 IF_PORT_10BASE2, | |
| 146 IF_PORT_10BASET, | |
| 147 IF_PORT_AUI, | |
| 148 IF_PORT_100BASET, | |
| 149 IF_PORT_100BASETX, | |
| 150 IF_PORT_100BASEFX | |
| 151 }; | |
| 152 # endif | |
| 153 #endif | |
| 154 | |
| 155 //from kernel header ipv6.h | |
| 156 #define IPV6_ADDR_ANY 0x0000U | |
| 157 #define IPV6_ADDR_LOOPBACK 0x0010U | |
| 158 #define IPV6_ADDR_LINKLOCAL 0x0020U | |
| 159 #define IPV6_ADDR_SITELOCAL 0x0040U | |
| 160 #define IPV6_ADDR_COMPATv4 0x0080U | |
| 161 | |
| 162 //================================================================================== | |
| 163 //for the param settings. | |
| 164 | |
| 165 //for ipv6 add/del | |
| 166 struct ifreq_inet6 { | |
| 167 struct in6_addr ifrinte6_addr; | |
| 168 uint32_t ifrinet6_prefixlen; | |
| 169 int ifrinet6_ifindex; | |
| 170 }; | |
| 171 | |
| 172 #ifndef SIOCSKEEPALIVE | |
| 173 # define SIOCSKEEPALIVE (SIOCDEVPRIVATE) /* Set keepalive timeout in sec */ | |
| 174 # define SIOCGKEEPALIVE (SIOCDEVPRIVATE+1) /* Get keepalive timeout */ | |
| 175 #endif | |
| 176 | |
| 177 #ifndef SIOCSOUTFILL | |
| 178 # define SIOCSOUTFILL (SIOCDEVPRIVATE+2) /* Set outfill timeout */ | |
| 179 # define SIOCGOUTFILL (SIOCDEVPRIVATE+3) /* Get outfill timeout */ | |
| 180 #endif | |
| 181 | |
| 182 #ifndef INFINIBAND_ALEN | |
| 183 # define INFINIBAND_ALEN 20 | |
| 184 #endif | |
| 185 | |
| 852 | 186 static void set_data(int sockfd, struct ifreq *ifre, char *kval, int request, char *req_name); |
| 841 | 187 static void set_flags(int sockfd, struct ifreq *ifre, int arg_flag, int flag); //verify |
| 852 | 188 static void set_mtu(int sockfd, struct ifreq *ifre, char *mtu); //verify |
| 189 static void set_metric(int sockfd, struct ifreq *ifre, char *metric); //verify | |
| 190 static void set_qlen(int sockfd, struct ifreq *ifre, char *qlen); //verify | |
| 191 static void set_address(int sockfd, char *host_name, struct ifreq *ifre, int request, char *req_name); | |
| 192 static void set_hw_address(int sockfd, char ***argv, struct ifreq *ifre, int request, char *req_name); | |
| 193 static void set_ipv6_addr(int sockfd, struct ifreq *ifre, char *ipv6_addr, int request, char *req_name); | |
| 194 static void set_memstart(int sockfd, struct ifreq *ifre, char *start_addr, int request, char *req_name); | |
| 195 static void set_ioaddr(int sockfd, struct ifreq *ifre, char *baddr, int request, char *req_name); | |
| 196 static void set_irq(int sockfd, struct ifreq *ifre, char *irq_val, int request, char *req_name); | |
| 841 | 197 |
| 852 | 198 char *omit_whitespace(char *s) |
| 841 | 199 { |
| 200 while(*s == ' ' || (unsigned char)(*s - 9) <= (13 - 9)) s++; | |
| 201 return (char *) s; | |
| 202 } | |
| 203 | |
| 852 | 204 char *safe_strncpy(char *dst, char *src, size_t size) |
| 841 | 205 { |
| 206 if(!size) return dst; | |
| 207 dst[--size] = '\0'; | |
| 208 return strncpy(dst, src, size); | |
| 209 } | |
| 210 | |
| 211 /* | |
| 212 * verify the host is local unix path. | |
| 213 * if so, set the swl input param accordingly. | |
| 214 */ | |
| 852 | 215 static int is_host_unix(char *host, sockaddr_with_len **swl) |
| 841 | 216 { |
| 217 if(strncmp(host, "local:", 6) == 0) { | |
| 218 struct sockaddr_un *sockun; | |
| 219 *swl = xzalloc(sizeof(struct sockaddr_with_len)); | |
| 220 (*swl)->socklen = sizeof(struct sockaddr_un); | |
| 221 (*swl)->sock_u.sock.sa_family = AF_UNIX; | |
| 222 sockun = (struct sockaddr_un *)&(*swl)->sock_u.sock; | |
| 223 safe_strncpy(sockun->sun_path, host + 6, sizeof(sockun->sun_path)); | |
| 224 return 1; | |
| 225 } | |
| 226 return 0; | |
| 227 } | |
| 228 | |
| 229 /* | |
| 230 * validate the input param (host) for valid ipv6 ip and extract port number (if there). | |
| 231 */ | |
| 232 static void get_host_and_port(char **host, int *port) | |
| 233 { | |
| 234 char *ch_ptr; | |
| 852 | 235 char *org_host = *host; |
| 841 | 236 if(*host[0] == '[') { |
| 237 (*host)++; | |
| 238 ch_ptr = strchr(*host, ']'); | |
| 239 if(!ch_ptr || (ch_ptr[1] != ':' && ch_ptr[1] != '\0')) | |
| 240 error_exit("bad address '%s'", org_host); | |
| 241 } | |
| 242 else { | |
| 243 ch_ptr = strrchr(*host, ':'); | |
| 244 //There is more than one ':' like "::1" | |
| 245 if(ch_ptr && strchr(*host, ':') != ch_ptr) | |
| 246 ch_ptr = NULL; | |
| 247 } | |
| 248 if(ch_ptr) { //pointer to ":" or "]:" | |
| 249 int size = ch_ptr - (*host) + 1; | |
| 250 safe_strncpy(*host, *host, size); | |
| 251 if(*ch_ptr != ':') { | |
| 252 ch_ptr++; //skip ']' | |
| 253 //[nn] without port | |
| 852 | 254 if(!*ch_ptr) return; |
| 841 | 255 } |
| 256 ch_ptr++; //skip ':' to get the port number. | |
| 257 *port = get_strtou(ch_ptr, NULL, 10); | |
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Drive-by cleanup on ifconfig.
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parents:
842
diff
changeset
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258 if(errno || (unsigned)*port > 65535) |
| 841 | 259 error_exit("bad port spec '%s'", org_host); |
| 260 } | |
| 261 } | |
| 262 | |
| 263 /* | |
| 264 * used to extract the address info from the given host ip | |
| 265 * and update the swl param accordingly. | |
| 266 */ | |
| 852 | 267 static int get_socket_stream(char *host, sa_family_t af, sockaddr_with_len **swl) |
| 841 | 268 { |
| 852 | 269 struct addrinfo hints, *result, *rp; |
| 270 int status; | |
| 841 | 271 |
| 272 memset(&hints, 0 , sizeof(struct addrinfo)); | |
| 273 hints.ai_family = af; | |
| 274 hints.ai_socktype = SOCK_STREAM; | |
| 275 | |
| 852 | 276 status = getaddrinfo(host, NULL, &hints, &result); |
| 277 if (status) perror_exit("bad address '%s' : %s", host, gai_strerror(status)); | |
| 841 | 278 |
| 852 | 279 for(rp = result; rp; rp = rp->ai_next) { |
| 280 if(rp->ai_family == AF_INET || rp->ai_family == AF_INET6) { | |
| 841 | 281 *swl = xmalloc(sizeof(struct sockaddr_with_len)); |
| 282 (*swl)->socklen = rp->ai_addrlen; | |
| 283 memcpy(&((*swl)->sock_u.sock), rp->ai_addr, rp->ai_addrlen); | |
| 284 break; | |
| 285 } | |
| 286 } | |
| 287 freeaddrinfo(result); | |
| 852 | 288 return rp ? 0 : -1; |
| 841 | 289 } |
| 290 | |
| 291 /* | |
| 292 * use to get the socket address with the given host ip. | |
| 293 */ | |
| 852 | 294 sockaddr_with_len *get_sockaddr(char *host, int port, sa_family_t af) |
| 841 | 295 { |
| 296 sockaddr_with_len *swl = NULL; | |
| 852 | 297 in_port_t port_num = htons(port); |
| 841 | 298 |
| 852 | 299 if(is_host_unix(host, &swl) && swl) return swl; |
| 841 | 300 |
| 301 //[IPV6_ip]:port_num | |
| 302 if(host[0] == '[' || strrchr(host, ':')) get_host_and_port((char **)&host, &port); | |
| 303 | |
| 852 | 304 if (get_socket_stream(host, af, &swl)) return NULL; |
| 841 | 305 |
| 852 | 306 if(swl->sock_u.sock.sa_family == AF_INET) |
| 307 swl->sock_u.sock_in.sin_port = port_num; | |
| 308 else if(swl->sock_u.sock.sa_family == AF_INET6) | |
| 309 swl->sock_u.sock_in6.sin6_port = port_num; | |
| 310 | |
| 841 | 311 return swl; |
| 312 } | |
| 313 | |
| 314 /* | |
| 315 * get the numeric hostname and service name, for a given socket address. | |
| 316 */ | |
| 852 | 317 char *address_to_name(struct sockaddr *sock) |
| 841 | 318 { |
| 319 //man page of getnameinfo. | |
| 320 char hbuf[NI_MAXHOST] = {0,}, sbuf[NI_MAXSERV] = {0,}; | |
| 321 int status = 0; | |
| 322 if(sock->sa_family == AF_INET) { | |
| 323 socklen_t len = sizeof(struct sockaddr_in); | |
| 324 if((status = getnameinfo(sock, len, hbuf, sizeof(hbuf), sbuf, sizeof(sbuf), NI_NUMERICHOST | NI_NUMERICSERV)) == 0) | |
| 325 return xmsprintf("%s:%s", hbuf, sbuf); | |
| 326 else { | |
| 327 fprintf(stderr, "getnameinfo: %s\n", gai_strerror(status)); | |
| 328 return NULL; | |
| 329 } | |
| 330 } | |
| 331 else if(sock->sa_family == AF_INET6) { | |
| 332 socklen_t len = sizeof(struct sockaddr_in6); | |
| 333 if((status = getnameinfo(sock, len, hbuf, sizeof(hbuf), sbuf, sizeof(sbuf), NI_NUMERICHOST | NI_NUMERICSERV)) == 0) { | |
| 334 //verification for resolved hostname. | |
| 335 if(strchr(hbuf, ':')) return xmsprintf("[%s]:%s", hbuf, sbuf); | |
| 336 else return xmsprintf("%s:%s", hbuf, sbuf); | |
| 337 } | |
| 338 else { | |
| 339 fprintf(stderr, "getnameinfo: %s\n", gai_strerror(status)); | |
| 340 return NULL; | |
| 341 } | |
| 342 } | |
| 343 else if(sock->sa_family == AF_UNIX) { | |
| 344 struct sockaddr_un *sockun = (void*)sock; | |
| 345 return xmsprintf("local:%.*s", (int) sizeof(sockun->sun_path), sockun->sun_path); | |
| 346 } | |
| 347 else | |
| 348 return NULL; | |
| 349 } | |
| 350 | |
| 351 /* | |
| 352 * used to set the port number for ipv4 / ipv6 addresses. | |
| 353 */ | |
| 354 void setport(struct sockaddr *sock, unsigned port_num) | |
| 355 { | |
| 852 | 356 if(sock->sa_family == AF_INET) |
| 357 ((struct sockaddr_in *)sock)->sin_port = port_num; | |
| 358 else if(sock->sa_family == AF_INET6) | |
| 359 ((struct sockaddr_in6 *)sock)->sin6_port = port_num; | |
| 841 | 360 } |
| 361 | |
| 362 /* | |
| 363 * used to converts string into int and validate the input str for invalid int value or out-of-range. | |
| 364 */ | |
| 852 | 365 unsigned get_strtou(char *str, char **endp, int base) |
| 841 | 366 { |
| 367 unsigned long uli; | |
| 368 char *endptr; | |
| 369 | |
| 370 if(!isalnum(str[0])) { | |
| 371 errno = ERANGE; | |
| 372 return UINT_MAX; | |
| 373 } | |
| 374 errno = 0; | |
| 375 uli = strtoul(str, &endptr, base); | |
| 376 if(uli > UINT_MAX) { | |
| 377 errno = ERANGE; | |
| 378 return UINT_MAX; | |
| 379 } | |
| 380 | |
| 381 if(endp) *endp = endptr; | |
| 382 if(endptr[0]) { | |
| 383 if(isalnum(endptr[0]) || errno) { //"123abc" or out-of-range | |
| 384 errno = ERANGE; | |
| 385 return UINT_MAX; | |
| 386 } | |
| 387 errno = EINVAL; | |
| 388 } | |
| 389 return uli; | |
| 390 } | |
| 391 | |
| 392 | |
| 393 IFACE_LIST *iface_list_head; | |
| 394 | |
| 395 /* | |
| 396 * display help info and exit from application. | |
| 397 */ | |
| 398 static void show_help(void) | |
| 399 { | |
| 400 char **arg = xzalloc(sizeof(char*) *3); | |
| 401 arg[0] = "help"; | |
| 402 arg[1] = xstrdup(toys.which->name); | |
| 403 toy_exec(arg); | |
| 404 } | |
| 405 | |
| 406 void ifconfig_main(void) | |
| 407 { | |
| 408 char **argv = toys.optargs; | |
| 409 | |
| 852 | 410 if(*argv && (strcmp(*argv, "--help") == 0)) |
| 841 | 411 show_help(); |
| 412 | |
| 413 //"ifconfig" / "ifconfig eth0" | |
| 414 if(!argv[0] || !argv[1]) { //one or no argument | |
| 852 | 415 toys.exitval = show_iface(*argv); |
| 841 | 416 //free allocated memory. |
| 417 clear_list(); | |
| 418 return; | |
| 419 } | |
| 420 | |
| 421 //set ifconfig params. | |
| 422 { | |
| 423 struct ifreq ifre; | |
| 424 int sockfd = 0; | |
| 425 //get interface name | |
| 426 memset(&ifre, 0, sizeof(struct ifreq)); | |
| 427 strncpy(ifre.ifr_name, *argv, IFNAMSIZ); | |
| 428 ifre.ifr_name[IFNAMSIZ-1] = 0; | |
| 429 if((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) | |
| 852 | 430 perror_exit("socket"); |
| 841 | 431 |
| 432 while(*++argv != NULL) { | |
| 433 /* flags settings */ | |
| 852 | 434 if (!strcmp(*argv, "up")) |
| 841 | 435 set_flags(sockfd, &ifre, IFF_UP | IFF_RUNNING, 0); |
| 852 | 436 else if (!strcmp(*argv, "down")) |
| 841 | 437 set_flags(sockfd, &ifre, 0, IFF_UP); |
| 438 | |
| 852 | 439 else if (!strcmp(*argv, "arp")) |
| 841 | 440 set_flags(sockfd, &ifre, 0, IFF_NOARP); |
| 852 | 441 else if (!strcmp(*argv, "-arp")) |
| 841 | 442 set_flags(sockfd, &ifre, IFF_NOARP, 0); |
| 852 | 443 else if (!strcmp(*argv, "trailers")) |
| 841 | 444 set_flags(sockfd, &ifre, 0, IFF_NOTRAILERS); |
| 852 | 445 else if (!strcmp(*argv, "-trailers")) |
| 841 | 446 set_flags(sockfd, &ifre, IFF_NOTRAILERS, 0); |
| 447 | |
| 852 | 448 else if (!strcmp(*argv, "promisc")) |
| 841 | 449 set_flags(sockfd, &ifre, IFF_PROMISC, 0); |
| 852 | 450 else if (!strcmp(*argv, "-promisc")) |
| 841 | 451 set_flags(sockfd, &ifre, 0, IFF_PROMISC); |
| 852 | 452 else if (!strcmp(*argv, "allmulti")) |
| 841 | 453 set_flags(sockfd, &ifre, IFF_ALLMULTI, 0); |
| 852 | 454 else if (!strcmp(*argv, "-allmulti")) |
| 841 | 455 set_flags(sockfd, &ifre, 0, IFF_ALLMULTI); |
| 852 | 456 else if (!strcmp(*argv, "multicast")) |
| 841 | 457 set_flags(sockfd, &ifre, IFF_MULTICAST, 0); |
| 852 | 458 else if (!strcmp(*argv, "-multicast")) |
| 841 | 459 set_flags(sockfd, &ifre, 0, IFF_MULTICAST); |
| 852 | 460 else if (!strcmp(*argv, "dynamic")) |
| 841 | 461 set_flags(sockfd, &ifre, IFF_DYNAMIC, 0); |
| 852 | 462 else if (!strcmp(*argv, "-dynamic")) |
| 841 | 463 set_flags(sockfd, &ifre, 0, IFF_DYNAMIC); |
| 852 | 464 else if (!strcmp(*argv, "-pointopoint")) |
| 841 | 465 set_flags(sockfd, &ifre, 0, IFF_POINTOPOINT); |
| 466 /*value setup */ | |
| 852 | 467 else if (!strcmp(*argv, "pointopoint")) { |
| 841 | 468 if(*++argv == NULL) { |
| 469 errno = EINVAL; | |
| 470 show_help(); | |
| 471 } | |
| 472 set_address(sockfd, *argv, &ifre, SIOCSIFDSTADDR, "SIOCSIFDSTADDR"); | |
| 473 set_flags(sockfd, &ifre, IFF_POINTOPOINT, 0); | |
| 852 | 474 } else if (!strcmp(*argv, "netmask")) { |
| 841 | 475 if(*++argv == NULL) { |
| 476 errno = EINVAL; | |
| 477 show_help(); | |
| 478 } | |
| 479 set_address(sockfd, *argv, &ifre, SIOCSIFNETMASK, "SIOCSIFNETMASK"); | |
| 852 | 480 } else if (!strcmp(*argv, "-broadcast")) { |
| 841 | 481 set_flags(sockfd, &ifre, 0, IFF_BROADCAST); |
| 852 | 482 } else if (!strcmp(*argv, "broadcast")) { |
| 841 | 483 if(*++argv == NULL) { |
| 484 errno = EINVAL; | |
| 485 show_help(); | |
| 486 } | |
| 487 set_address(sockfd, *argv, &ifre, SIOCSIFBRDADDR, "SIOCSIFBRDADDR"); | |
| 488 set_flags(sockfd, &ifre, IFF_BROADCAST, 0); | |
| 852 | 489 } else if (!strcmp(*argv, "dstaddr")) { |
| 841 | 490 if(*++argv == NULL) { |
| 491 errno = EINVAL; | |
| 492 show_help(); | |
| 493 } | |
| 494 set_address(sockfd, *argv, &ifre, SIOCSIFDSTADDR, "SIOCSIFDSTADDR"); | |
| 852 | 495 } else if (!strcmp(*argv, "hw")) { |
| 841 | 496 if(*++argv == NULL) { |
| 497 errno = EINVAL; | |
| 498 show_help(); | |
| 499 } | |
| 500 set_hw_address(sockfd, &argv, &ifre, SIOCSIFHWADDR, "SIOCSIFHWADDR"); | |
| 852 | 501 } else if (!strcmp(*argv, "mtu")) { |
| 841 | 502 if(*++argv == NULL) { |
| 503 errno = EINVAL; | |
| 504 show_help(); | |
| 505 } | |
| 852 | 506 set_mtu(sockfd, &ifre, *argv); |
| 507 } else if (!strcmp(*argv, "metric")) { | |
| 841 | 508 if(*++argv == NULL) { |
| 509 errno = EINVAL; | |
| 510 show_help(); | |
| 511 } | |
| 852 | 512 set_metric(sockfd, &ifre, *argv); |
| 513 } else if (!strcmp(*argv, "txqueuelen")) { | |
| 841 | 514 if(*++argv == NULL) { |
| 515 errno = EINVAL; | |
| 516 show_help(); | |
| 517 } | |
| 852 | 518 set_qlen(sockfd, &ifre, *argv); |
| 519 } else if (!strcmp(*argv, "keepalive")) { | |
| 841 | 520 if(*++argv == NULL) { |
| 521 errno = EINVAL; | |
| 522 show_help(); | |
| 523 } | |
| 852 | 524 set_data(sockfd, &ifre, *argv, SIOCSKEEPALIVE, "SIOCSKEEPALIVE"); |
| 841 | 525 }//end of keepalive |
| 852 | 526 else if (!strcmp(*argv, "outfill")) { |
| 841 | 527 if(*++argv == NULL) { |
| 528 errno = EINVAL; | |
| 529 show_help(); | |
| 530 } | |
| 852 | 531 set_data(sockfd, &ifre, *argv, SIOCSOUTFILL, "SIOCSOUTFILL"); |
| 532 } else if (!strcmp(*argv, "add")) { | |
| 841 | 533 if(*++argv == NULL) { |
| 534 errno = EINVAL; | |
| 535 show_help(); | |
| 536 } | |
| 852 | 537 set_ipv6_addr(sockfd, &ifre, *argv, SIOCSIFADDR, "SIOCSIFADDR"); |
| 538 } else if (!strcmp(*argv, "del")) { | |
| 841 | 539 if(*++argv == NULL) { |
| 540 errno = EINVAL; | |
| 541 show_help(); | |
| 542 } | |
| 852 | 543 set_ipv6_addr(sockfd, &ifre, *argv, SIOCDIFADDR, "SIOCDIFADDR"); |
| 544 } else if (!strcmp(*argv, "mem_start")) { | |
| 841 | 545 if(*++argv == NULL) { |
| 546 errno = EINVAL; | |
| 547 show_help(); | |
| 548 } | |
| 852 | 549 set_memstart(sockfd, &ifre, *argv, SIOCSIFMAP, "SIOCSIFMAP"); |
| 550 } else if (!strcmp(*argv, "io_addr")) { | |
| 841 | 551 if(*++argv == NULL) { |
| 552 errno = EINVAL; | |
| 553 show_help(); | |
| 554 } | |
| 852 | 555 set_ioaddr(sockfd, &ifre, *argv, SIOCSIFMAP, "SIOCSIFMAP"); |
| 556 } else if (!strcmp(*argv, "irq")) { | |
| 841 | 557 if(*++argv == NULL) { |
| 558 errno = EINVAL; | |
| 559 show_help(); | |
| 560 } | |
| 852 | 561 set_irq(sockfd, &ifre, *argv, SIOCSIFMAP, "SIOCSIFMAP"); |
| 562 } else { | |
| 563 if(isdigit(**argv) || !strcmp(*argv, "default")) { | |
| 841 | 564 char *iface_name = ifre.ifr_name; |
| 565 short int is_colon = 0; | |
| 566 set_address(sockfd, *argv, &ifre, SIOCSIFADDR, "SIOCSIFADDR"); | |
| 567 while(*iface_name) { | |
| 568 if(*iface_name == ':') { | |
| 569 is_colon = 1; | |
| 570 break; | |
| 571 } | |
| 572 iface_name++; | |
| 573 } | |
| 574 //if the interface name is not an alias; set the flag and continue. | |
| 575 if(!is_colon) | |
| 576 set_flags(sockfd, &ifre, IFF_UP | IFF_RUNNING, 0); | |
| 852 | 577 } else if (!strcmp(*argv, "inet") || !strcmp(*argv, "inet6")) |
| 841 | 578 continue; |
| 579 else { | |
| 580 errno = EINVAL; | |
| 581 show_help(); | |
| 582 } | |
| 852 | 583 } |
| 841 | 584 |
| 852 | 585 } |
| 586 if(sockfd > 0) close(sockfd); | |
| 841 | 587 } |
| 852 | 588 } |
| 841 | 589 |
| 590 | |
| 591 static void set_flags(int sockfd, struct ifreq *ifre, int set_flag, int reset_flag) | |
| 592 { | |
| 593 if(ioctl(sockfd, SIOCGIFFLAGS, ifre) < 0) | |
| 594 perror_exit("SIOCGIFFLAGS"); | |
| 595 ifre->ifr_flags = (ifre->ifr_flags & (~reset_flag)) | set_flag; | |
| 596 if(ioctl(sockfd, SIOCSIFFLAGS, ifre) < 0) | |
| 597 perror_exit("SIOCSIFFLAGS"); | |
| 598 return; | |
| 599 } | |
| 600 | |
| 852 | 601 static void set_data(int sockfd, struct ifreq *ifre, char *kval, int request, char *req_name) |
| 841 | 602 { |
|
842
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
603 unsigned long val = strtoul(kval, NULL, 0); |
| 841 | 604 char *ptr; |
| 605 ptr = ((char *) ifre) + offsetof(struct ifreq, ifr_data); | |
|
856
e93ae8a32a26
ifconfig uses __caddr_t in one location; this is not guaranteed to work everywhere. It does not compile OOB on musl, so I changed it to the portable equivalent, char *. This compiles on musl, and should compile anywhere.
Isaac Dunham <idunham@lavabit.com>
parents:
852
diff
changeset
|
606 (*(char * *)ptr) = (char *)val; |
| 841 | 607 |
| 608 if(ioctl(sockfd, request, ifre) < 0) { | |
| 609 perror_exit((char *)req_name); | |
| 610 } | |
| 611 return; | |
| 612 } | |
| 852 | 613 static void set_mtu(int sockfd, struct ifreq *ifre, char *mtu) |
| 841 | 614 { |
| 615 ifre->ifr_mtu = strtoul(mtu, NULL, 0); | |
| 616 if(ioctl(sockfd, SIOCSIFMTU, ifre) < 0) | |
| 617 perror_exit("SIOCSIFMTU"); | |
| 618 return; | |
| 619 } | |
| 620 | |
| 852 | 621 static void set_metric(int sockfd, struct ifreq *ifre, char *metric) |
| 841 | 622 { |
| 623 ifre->ifr_metric = strtoul(metric, NULL, 0); | |
| 624 if(ioctl(sockfd, SIOCSIFMETRIC, ifre) < 0) | |
| 625 perror_exit("SIOCSIFMETRIC"); | |
| 626 return; | |
| 627 } | |
| 628 | |
| 852 | 629 static void set_qlen(int sockfd, struct ifreq *ifre, char *qlen) |
| 841 | 630 { |
| 631 ifre->ifr_qlen = strtoul(qlen, NULL, 0); | |
| 632 if(ioctl(sockfd, SIOCSIFTXQLEN, ifre) < 0) | |
| 633 perror_exit("SIOCSIFTXQLEN"); | |
| 634 return; | |
| 635 } | |
| 636 | |
| 852 | 637 static void set_ipv6_addr(int sockfd, struct ifreq *ifre, char *ipv6_addr, int request, char *req_name) |
| 841 | 638 { |
| 639 char *prefix; | |
| 640 int plen = 0; | |
| 641 sockaddr_with_len *swl = NULL; | |
| 642 | |
| 643 prefix = strchr(ipv6_addr, '/'); | |
| 644 if(prefix) { | |
| 645 plen = get_int_value(prefix + 1, 0, 128); | |
| 646 *prefix = '\0'; | |
| 647 } | |
| 648 swl = get_sockaddr(ipv6_addr, 0, AF_INET6); | |
| 649 if(!swl) error_exit("error in resolving host name"); | |
| 650 int sockfd6; | |
| 651 struct ifreq_inet6 ifre6; | |
| 652 memcpy((char *) &ifre6.ifrinte6_addr, | |
| 653 (char *) &(swl->sock_u.sock_in6.sin6_addr), | |
| 654 sizeof(struct in6_addr)); | |
| 655 //Create a channel to the NET kernel. | |
| 656 if( (sockfd6 = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) | |
| 657 perror_exit("AF_INET6 SOCK_DGRAM", 0); | |
| 658 if(ioctl(sockfd6, SIOGIFINDEX, ifre) < 0) | |
| 659 perror_exit("SIOGIFINDEX"); | |
| 660 ifre6.ifrinet6_ifindex = ifre->ifr_ifindex; | |
| 661 ifre6.ifrinet6_prefixlen = plen; | |
| 662 | |
| 663 if(ioctl(sockfd6, request, &ifre6) < 0) | |
| 664 perror_exit((char *)req_name); | |
| 665 if(swl != NULL) { | |
| 666 free(swl); | |
| 667 swl = NULL; | |
| 668 } | |
| 669 return; | |
| 670 } | |
| 671 | |
| 852 | 672 static void set_address(int sockfd, char *host_name, struct ifreq *ifre, int request, char *req_name) |
| 841 | 673 { |
| 674 struct sockaddr_in sock_in; | |
| 675 sockaddr_with_len *swl = NULL; | |
| 676 sock_in.sin_family = AF_INET; | |
| 677 sock_in.sin_port = 0; | |
| 678 | |
| 679 //Default 0.0.0.0 | |
| 680 if(strcmp(host_name, "default") == 0) | |
| 681 sock_in.sin_addr.s_addr = INADDR_ANY; | |
| 682 else { | |
| 683 swl = get_sockaddr(host_name, 0, AF_INET); | |
| 684 if(!swl) error_exit("error in resolving host name"); | |
| 685 | |
| 686 sock_in.sin_addr = swl->sock_u.sock_in.sin_addr; | |
| 687 } | |
| 688 memcpy((char *)&ifre->ifr_addr, (char *) &sock_in, sizeof(struct sockaddr)); | |
| 689 if(ioctl(sockfd, request, ifre) < 0) | |
| 690 perror_exit((char *)req_name); | |
| 691 | |
| 692 if(swl != NULL) { | |
| 693 free(swl); | |
| 694 swl = NULL; | |
| 695 } | |
| 696 return; | |
| 697 } | |
| 698 | |
| 852 | 699 static int hex_to_binary(char *hw_addr, struct sockaddr *sock, int count) |
| 841 | 700 { |
| 701 int i = 0, j = 0; | |
| 702 unsigned char nib_val; | |
| 703 unsigned char ch; | |
| 704 | |
| 705 char *ptr = (char *) sock->sa_data; | |
| 706 if(count == ETH_ALEN) | |
| 707 sock->sa_family = ARPHRD_ETHER; | |
| 708 else if(count == INFINIBAND_ALEN) | |
| 709 sock->sa_family = ARPHRD_INFINIBAND; | |
| 710 else | |
| 711 return -1; | |
| 712 //e.g. hw_addr "62:2D:A6:9E:2D:BE" | |
| 713 for(; *hw_addr && (i < count); i++) { | |
| 714 if(*hw_addr == ':') | |
| 715 hw_addr++; | |
| 716 j = nib_val = 0; | |
| 717 for(;j < 2; j++) { | |
| 718 ch = *hw_addr; | |
| 719 //0-9 = 10 chars. | |
| 720 if(((unsigned char)(ch - '0')) < 10) | |
| 721 ch = (ch - '0'); | |
| 722 //a-f = 6 chars. | |
| 723 else if(((unsigned char)((ch) - 'a')) < 6) | |
| 724 ch = (ch - ('a'-10)); | |
| 725 //A-F = 6 chars. | |
| 726 else if(((unsigned char)((ch) - 'A')) < 6) | |
| 727 ch = (ch - ('A'-10)); | |
| 728 else if(j && (ch == ':' || ch == 0)) | |
| 729 break; | |
| 730 else | |
| 731 return -1; | |
| 732 hw_addr++; | |
| 733 nib_val <<= 4; | |
| 734 nib_val += ch; | |
| 735 } | |
| 736 *ptr++ = nib_val; | |
| 737 } | |
| 738 if(*hw_addr) | |
| 739 return -1; | |
| 740 return 0; | |
| 741 } | |
| 742 | |
| 852 | 743 static void set_hw_address(int sockfd, char ***argv, struct ifreq *ifre, int request, char *req_name) |
| 841 | 744 { |
| 745 int hw_class = 0; | |
| 746 char *hw_addr; | |
| 747 struct sockaddr sock; | |
| 748 char *ptr; | |
| 749 char *hw_class_strings[] = { | |
| 750 "ether", | |
| 751 "infiniband", | |
| 752 NULL | |
| 753 }; | |
| 754 | |
| 755 if(strcmp(hw_class_strings[0], **argv) == 0) | |
| 756 hw_class = 1; | |
| 757 else if(strcmp(hw_class_strings[1], **argv) == 0) | |
| 758 hw_class = 2; | |
| 759 if(!hw_class || !(*argv += 1)) | |
| 760 show_help(); | |
| 761 | |
| 762 memset(&sock, 0, sizeof(struct sockaddr)); | |
| 763 hw_addr = **argv; | |
| 764 if(hw_class == 1) { | |
| 765 if(hex_to_binary(hw_addr, &sock, ETH_ALEN)) | |
| 766 error_exit("invalid hw-addr %s", hw_addr); | |
| 767 } | |
| 768 else { | |
| 769 if(hex_to_binary(hw_addr, &sock, INFINIBAND_ALEN)) | |
| 770 error_exit("invalid hw-addr %s", hw_addr); | |
| 771 } | |
| 772 ptr = (char *)&sock; | |
| 773 memcpy( ((char *) ifre) + offsetof(struct ifreq, ifr_hwaddr), ptr, sizeof(struct sockaddr)); | |
| 774 if(ioctl(sockfd, request, ifre) < 0) | |
| 775 perror_exit((char *)req_name); | |
| 776 return; | |
| 777 } | |
| 778 | |
| 852 | 779 static void set_memstart(int sockfd, struct ifreq *ifre, char *start_addr, int request, char *req_name) |
| 841 | 780 { |
| 781 unsigned long mem_start = strtoul(start_addr, NULL, 0); | |
| 782 | |
| 783 if(ioctl(sockfd, SIOCGIFMAP, ifre) < 0) | |
| 784 perror_exit("SIOCGIFMAP"); | |
| 785 ifre->ifr_map.mem_start = mem_start; | |
| 786 if(ioctl(sockfd, request, ifre) < 0) | |
| 787 perror_exit((char *)req_name); | |
| 788 return; | |
| 789 } | |
| 790 | |
| 852 | 791 static void set_ioaddr(int sockfd, struct ifreq *ifre, char *baddr, int request, char *req_name) |
| 841 | 792 { |
| 793 unsigned short int base_addr = strtoul(baddr, NULL, 0); | |
| 794 if(ioctl(sockfd, SIOCGIFMAP, ifre) < 0) | |
| 795 perror_exit("SIOCGIFMAP"); | |
| 796 ifre->ifr_map.base_addr = base_addr; | |
| 797 if(ioctl(sockfd, request, ifre) < 0) | |
| 798 perror_exit((char *)req_name); | |
| 799 return; | |
| 800 } | |
| 801 | |
| 852 | 802 static void set_irq(int sockfd, struct ifreq *ifre, char *irq_val, int request, char *req_name) |
| 841 | 803 { |
| 804 unsigned short int irq = strtoul(irq_val, NULL, 0); | |
| 805 char *ptr; | |
| 806 struct ifmap *map; | |
| 807 | |
| 852 | 808 if(ioctl(sockfd, SIOCGIFMAP, ifre) < 0) perror_exit("SIOCGIFMAP"); |
| 841 | 809 |
| 810 ptr = ((char *) ifre) + offsetof(struct ifreq, ifr_map); | |
| 811 map = (struct ifmap *)ptr; | |
| 812 map->irq = irq; | |
| 852 | 813 if(ioctl(sockfd, request, ifre) < 0) perror_exit(req_name); |
| 841 | 814 return; |
| 815 } | |
| 816 | |
| 817 /* Display ifconfig info. */ | |
| 818 static void get_proc_info(char *buff, IFACE_LIST *l_ptr, int version) | |
| 819 { | |
| 820 char *name; | |
| 821 memset(&l_ptr->dev_info, 0, sizeof(PROC_NET_DEV_INFO)); | |
| 822 | |
| 823 buff = omit_whitespace(buff); | |
| 824 name = strsep(&buff, ":"); | |
| 825 if(!buff) | |
| 826 error_exit("error in getting the device name:"); | |
| 827 | |
| 828 if(strlen(name) < (IFNAMSIZ)) { | |
| 829 strncpy(l_ptr->dev_info.ifrname, name, IFNAMSIZ-1); | |
| 830 l_ptr->dev_info.ifrname[IFNAMSIZ-1] = '\0'; | |
| 831 } | |
| 832 else { | |
| 833 l_ptr->dev_info.ifrname[0] = '\0'; | |
| 834 } | |
| 835 | |
| 836 sscanf(buff, field_format[version], | |
| 837 &l_ptr->dev_info.receive_bytes, | |
| 838 &l_ptr->dev_info.receive_packets, | |
| 839 &l_ptr->dev_info.receive_errors, | |
| 840 &l_ptr->dev_info.receive_drop, | |
| 841 &l_ptr->dev_info.receive_fifo, | |
| 842 &l_ptr->dev_info.receive_frame, | |
| 843 &l_ptr->dev_info.receive_compressed, | |
| 844 &l_ptr->dev_info.receive_multicast, | |
| 845 &l_ptr->dev_info.transmit_bytes, | |
| 846 &l_ptr->dev_info.transmit_packets, | |
| 847 &l_ptr->dev_info.transmit_errors, | |
| 848 &l_ptr->dev_info.transmit_drop, | |
| 849 &l_ptr->dev_info.transmit_fifo, | |
| 850 &l_ptr->dev_info.transmit_colls, | |
| 851 &l_ptr->dev_info.transmit_carrier, | |
| 852 &l_ptr->dev_info.transmit_compressed | |
| 853 ); | |
| 854 | |
| 855 if(version == 0) | |
| 856 l_ptr->dev_info.receive_bytes = l_ptr->dev_info.transmit_bytes = 0; | |
| 857 if(version == 1) | |
| 858 l_ptr->dev_info.receive_multicast = l_ptr->dev_info.receive_compressed = l_ptr->dev_info.transmit_compressed = 0; | |
| 859 return; | |
| 860 } | |
| 861 | |
| 862 static void add_iface_to_list(IFACE_LIST *newnode) | |
| 863 { | |
| 864 IFACE_LIST *head_ref = iface_list_head; | |
| 865 | |
| 866 if((head_ref == NULL) || strcmp(newnode->dev_info.ifrname, head_ref->dev_info.ifrname) < 0) { | |
| 867 newnode->next = head_ref; | |
| 868 head_ref = newnode; | |
| 869 } | |
| 870 else { | |
| 871 IFACE_LIST *current = head_ref; | |
| 872 while(current->next != NULL && (strcmp(current->next->dev_info.ifrname, newnode->dev_info.ifrname)) < 0) | |
| 873 current = current->next; | |
| 874 newnode->next = current->next; | |
| 875 current->next = newnode; | |
| 876 } | |
| 877 iface_list_head = head_ref; | |
| 878 } | |
| 879 | |
| 880 static int get_device_info(IFACE_LIST *l_ptr) | |
| 881 { | |
| 882 struct ifreq ifre; | |
| 883 char *ifrname = l_ptr->dev_info.ifrname; | |
| 884 int sokfd; | |
| 885 | |
| 886 sokfd = socket(AF_INET, SOCK_DGRAM, 0); | |
| 887 if(sokfd < 0) | |
| 888 return sokfd; | |
| 889 strncpy(ifre.ifr_name, ifrname, IFNAMSIZ); | |
| 890 if(ioctl(sokfd, SIOCGIFFLAGS, &ifre) < 0) { | |
| 891 close(sokfd); | |
| 892 return NO_RANGE; | |
| 893 } | |
| 894 l_ptr->ifrflags = ifre.ifr_flags; | |
| 895 | |
| 896 strncpy(ifre.ifr_name, ifrname, IFNAMSIZ); | |
| 897 if(ioctl(sokfd, SIOCGIFHWADDR, &ifre) >= 0) | |
| 898 memcpy(l_ptr->ifrhwaddr.sa_data, ifre.ifr_hwaddr.sa_data, sizeof(l_ptr->ifrhwaddr.sa_data)); | |
| 899 | |
| 900 l_ptr->hw_type = ifre.ifr_hwaddr.sa_family; | |
| 901 | |
| 902 strncpy(ifre.ifr_name, ifrname, IFNAMSIZ); | |
| 903 if(ioctl(sokfd, SIOCGIFMETRIC, &ifre) >= 0) | |
| 904 l_ptr->ifrmetric = ifre.ifr_metric; | |
| 905 | |
| 906 strncpy(ifre.ifr_name, ifrname, IFNAMSIZ); | |
| 907 if(ioctl(sokfd, SIOCGIFMTU, &ifre) >= 0) | |
| 908 l_ptr->ifrmtu = ifre.ifr_mtu; | |
| 909 | |
| 910 #ifdef SIOCGIFMAP | |
| 911 strncpy(ifre.ifr_name, ifrname, IFNAMSIZ); | |
| 912 if(ioctl(sokfd, SIOCGIFMAP, &ifre) == 0) | |
| 913 l_ptr->ifrmap = ifre.ifr_map; | |
| 914 #endif | |
| 915 | |
| 916 strncpy(ifre.ifr_name, ifrname, IFNAMSIZ); | |
| 917 l_ptr->txqueuelen = NO_RANGE; | |
| 918 if(ioctl(sokfd, SIOCGIFTXQLEN, &ifre) >= 0) | |
| 919 l_ptr->txqueuelen = ifre.ifr_qlen; | |
| 920 | |
| 921 strncpy(ifre.ifr_name, ifrname, IFNAMSIZ); | |
| 922 ifre.ifr_addr.sa_family = AF_INET; | |
| 923 | |
| 924 if(ioctl(sokfd, SIOCGIFADDR, &ifre) == 0) { | |
| 925 l_ptr->ifaddr = 1; | |
| 926 l_ptr->ifraddr = ifre.ifr_addr; | |
| 927 strncpy(ifre.ifr_name, ifrname, IFNAMSIZ); | |
| 928 if(ioctl(sokfd, SIOCGIFDSTADDR, &ifre) >= 0) | |
| 929 l_ptr->ifrdstaddr = ifre.ifr_dstaddr; | |
| 930 | |
| 931 strncpy(ifre.ifr_name, ifrname, IFNAMSIZ); | |
| 932 if(ioctl(sokfd, SIOCGIFBRDADDR, &ifre) >= 0) | |
| 933 l_ptr->ifrbroadaddr = ifre.ifr_broadaddr; | |
| 934 | |
| 935 strncpy(ifre.ifr_name, ifrname, IFNAMSIZ); | |
| 936 if(ioctl(sokfd, SIOCGIFNETMASK, &ifre) >= 0) | |
| 937 l_ptr->ifrnetmask = ifre.ifr_netmask; | |
| 938 } | |
| 939 close(sokfd); | |
| 940 return 0; | |
| 941 } | |
| 942 | |
| 943 static void get_ifconfig_info(void) | |
| 944 { | |
| 945 IFACE_LIST *l_ptr; | |
| 946 char buff[BUFSIZ] = {0,}; | |
| 947 int version_num = 0; | |
| 948 | |
|
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949 FILE *fp = fopen("/proc/net/dev", "r"); |
| 841 | 950 if(fp == NULL) |
| 951 return; | |
| 952 | |
| 953 fgets(buff, sizeof(buff), fp); //skip 1st header line. | |
| 954 fgets(buff, sizeof(buff), fp); //skip 2nd header line. | |
| 955 | |
| 956 if(strstr(buff, "compressed")) | |
| 957 version_num = 2; | |
| 958 else if(strstr(buff, "bytes")) | |
| 959 version_num = 1; | |
| 960 else | |
| 961 version_num = 0; | |
| 962 | |
| 963 while(fgets(buff, BUFSIZ, fp)) { | |
| 964 l_ptr = xzalloc(sizeof(IFACE_LIST)); | |
| 965 get_proc_info(buff, l_ptr, version_num); | |
| 966 add_iface_to_list(l_ptr); | |
|
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967 l_ptr->non_virtual_iface = 1; |
| 841 | 968 errno = 0; |
| 969 if(get_device_info(l_ptr) < 0) { | |
| 852 | 970 char *errstr = strerror(errno); |
| 841 | 971 fclose(fp); |
| 972 fp = NULL; | |
| 973 clear_list(); | |
| 974 perror_exit("%s: error getting interface info: %s", l_ptr->dev_info.ifrname, errstr); | |
| 975 } | |
| 976 }//end of while. | |
| 977 fclose(fp); | |
| 978 fp = NULL; | |
| 979 } | |
| 980 | |
| 981 static void get_hw_info(int hw_type, HW_INFO *hw_info) | |
| 982 { | |
| 852 | 983 memset(hw_info, 0, sizeof(HW_INFO)); |
| 984 | |
| 841 | 985 switch(hw_type) { |
| 986 case ARPHRD_LOOPBACK: //Loopback device. | |
| 987 strncpy(hw_info->hw_name, "loop", HW_NAME_LEN); | |
| 988 strncpy(hw_info->hw_title, "Local Loopback", HW_TITLE_LEN); | |
| 989 hw_info->hw_addrlen = 0; | |
| 990 break; | |
| 991 case ARPHRD_ETHER: //Ethernet | |
| 992 strncpy(hw_info->hw_name, "ether", HW_NAME_LEN); | |
| 993 strncpy(hw_info->hw_title, "Ethernet", HW_TITLE_LEN); | |
| 994 hw_info->hw_addrlen = ETH_ALEN; | |
| 995 break; | |
| 996 case ARPHRD_PPP: //ARPHRD_PPP | |
| 997 strncpy(hw_info->hw_name, "ppp", HW_NAME_LEN); | |
| 998 strncpy(hw_info->hw_title, "Point-to-Point Protocol", HW_TITLE_LEN); | |
| 999 hw_info->hw_addrlen = 0; | |
| 1000 break; | |
| 1001 case ARPHRD_INFINIBAND: //InfiniBand | |
| 1002 strncpy(hw_info->hw_name, "infiniband", HW_NAME_LEN); | |
| 1003 strncpy(hw_info->hw_title, "InfiniBand", HW_TITLE_LEN); | |
| 1004 hw_info->hw_addrlen = 20; | |
| 1005 break; | |
| 1006 case ARPHRD_SIT: //sit0 device - IPv6-in-IPv4 | |
| 1007 strncpy(hw_info->hw_name, "sit", HW_NAME_LEN); | |
| 1008 strncpy(hw_info->hw_title, "IPv6-in-IPv4", HW_TITLE_LEN); | |
| 1009 hw_info->hw_addrlen = 0; | |
| 1010 break; | |
| 852 | 1011 case -1: |
| 841 | 1012 strncpy(hw_info->hw_name, "unspec", HW_NAME_LEN); |
| 1013 strncpy(hw_info->hw_title, "UNSPEC", HW_TITLE_LEN); | |
| 1014 hw_info->hw_addrlen = 0; | |
| 1015 break; | |
| 1016 default: | |
| 1017 break; | |
| 1018 } | |
| 1019 } | |
| 1020 | |
| 1021 static void print_hw_addr(int hw_type, HW_INFO hw_info, IFACE_LIST *l_ptr) | |
| 1022 { | |
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1023 unsigned char *address = (unsigned char *)l_ptr->ifrhwaddr.sa_data; |
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1024 |
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1025 if(!address || !hw_info.hw_addrlen) return; |
| 841 | 1026 xprintf("HWaddr "); |
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1027 if(hw_type == ARPHRD_ETHER) { |
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1028 int i; |
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1029 |
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1030 for (i=0; i<6; i++) xprintf(":%02X"+!i, address[i]); |
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1031 } |
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1032 |
| 841 | 1033 return; |
| 1034 } | |
| 1035 | |
| 852 | 1036 static char *get_ip_addr(struct sockaddr *skaddr) |
| 841 | 1037 { |
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1038 struct sockaddr_in *sin = (struct sockaddr_in *)skaddr; |
| 841 | 1039 |
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1040 if(skaddr->sa_family == 0xFFFF || !skaddr->sa_family) return "[NOT SET]"; |
| 841 | 1041 if(sin->sin_family != AF_INET) { |
| 1042 errno = EAFNOSUPPORT; | |
| 1043 return NULL; | |
| 1044 } | |
| 1045 | |
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1046 return inet_ntoa(sin->sin_addr); |
| 841 | 1047 } |
| 1048 | |
| 1049 static void print_ip_addr(IFACE_LIST *l_ptr) | |
| 1050 { | |
| 852 | 1051 char *af_name; |
| 841 | 1052 int af = l_ptr->ifraddr.sa_family; |
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1053 |
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1054 if (af == AF_INET) af_name = "inet"; |
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1055 else if (af == AF_INET6) af_name = "inet6"; |
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1056 else if (af == AF_UNSPEC) af_name = "unspec"; |
| 841 | 1057 |
| 1058 xprintf("%10s%s addr:%s ", " ", af_name, get_ip_addr(&l_ptr->ifraddr)); | |
| 1059 if(l_ptr->ifrflags & IFF_POINTOPOINT) | |
| 1060 xprintf(" P-t-P:%s ", get_ip_addr(&l_ptr->ifrdstaddr)); | |
| 1061 if(l_ptr->ifrflags & IFF_BROADCAST) | |
| 1062 xprintf(" Bcast:%s ", get_ip_addr(&l_ptr->ifrbroadaddr)); | |
| 1063 xprintf(" Mask:%s\n", get_ip_addr(&l_ptr->ifrnetmask)); | |
| 1064 return; | |
| 1065 } | |
| 1066 | |
| 1067 static void print_iface_flags(IFACE_LIST *l_ptr) | |
| 1068 { | |
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1069 if (l_ptr->ifrflags != 0) { |
| 841 | 1070 unsigned short mask = 1; |
| 1071 char **str = iface_flags_str; | |
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1072 |
| 841 | 1073 for(; *str != NULL; str++) { |
| 1074 if(l_ptr->ifrflags & mask) | |
| 1075 xprintf("%s ", *str); | |
| 1076 mask = mask << 1; | |
| 1077 } | |
|
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1078 } else xprintf("[NO FLAGS] "); |
| 841 | 1079 return; |
| 1080 } | |
| 1081 | |
| 1082 static void print_media(IFACE_LIST *l_ptr) | |
| 1083 { | |
| 1084 #ifdef IFF_PORTSEL | |
| 1085 if(l_ptr->ifrflags & IFF_PORTSEL) { | |
| 1086 xprintf("Media:"); | |
| 1087 if(l_ptr->ifrmap.port == IF_PORT_UNKNOWN) | |
| 1088 xprintf("%s", "unknown"); | |
| 1089 else if(l_ptr->ifrmap.port == IF_PORT_10BASE2) | |
| 1090 xprintf("%s", "10base2"); | |
| 1091 else if(l_ptr->ifrmap.port == IF_PORT_10BASET) | |
| 1092 xprintf("%s", "10baseT"); | |
| 1093 else if(l_ptr->ifrmap.port == IF_PORT_AUI) | |
| 1094 xprintf("%s", "AUI"); | |
| 1095 else if(l_ptr->ifrmap.port == IF_PORT_100BASET) | |
| 1096 xprintf("%s", "100baseT"); | |
| 1097 else if(l_ptr->ifrmap.port == IF_PORT_100BASETX) | |
| 1098 xprintf("%s", "100baseTX"); | |
| 1099 else if(l_ptr->ifrmap.port == IF_PORT_100BASEFX) | |
| 1100 xprintf("%s", "100baseFX"); | |
| 1101 if(l_ptr->ifrflags & IFF_AUTOMEDIA) | |
| 1102 xprintf("(auto)"); | |
| 1103 } | |
| 1104 #endif | |
| 1105 return; | |
| 1106 } | |
| 1107 | |
| 1108 static void print_ip6_addr(IFACE_LIST *l_ptr) | |
| 1109 { | |
| 1110 char iface_name[IFNAMSIZ] = {0,}; | |
| 1111 char buf[BUFSIZ] = {0,}; | |
| 1112 int plen, scope; | |
| 1113 | |
|
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1114 FILE *fp = fopen("/proc/net/if_inet6", "r"); |
| 841 | 1115 if(fp == NULL) |
| 1116 return; | |
| 1117 | |
| 1118 while(fgets(buf, BUFSIZ, fp)) { | |
| 1119 int nitems = 0; | |
| 1120 char ipv6_addr[40] = {0,}; | |
|
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1121 nitems = sscanf(buf, "%32s %*08x %02x %02x %*02x %15s\n", |
| 841 | 1122 ipv6_addr+7, &plen, &scope, iface_name); |
| 1123 if(nitems != 4) { | |
| 1124 if((nitems < 0) && feof(fp)) | |
| 1125 break; | |
| 1126 perror_exit("sscanf"); | |
| 1127 } | |
| 1128 if(strcmp(l_ptr->dev_info.ifrname,iface_name) == 0) { | |
| 1129 int i = 0; | |
| 1130 struct sockaddr_in6 sock_in6; | |
| 1131 int len = sizeof(ipv6_addr) / (sizeof ipv6_addr[0]); | |
| 1132 char *ptr = ipv6_addr+7; | |
| 1133 while((i < len-2) && (*ptr)) { | |
| 1134 ipv6_addr[i++] = *ptr++; | |
| 1135 //put ':' after 4th bit | |
| 1136 if(!((i+1) % 5)) | |
| 1137 ipv6_addr[i++] = ':'; | |
| 1138 } | |
| 1139 ipv6_addr[i+1] = '\0'; | |
| 1140 if(inet_pton(AF_INET6, ipv6_addr, (struct sockaddr *) &sock_in6.sin6_addr) > 0) { | |
| 1141 sock_in6.sin6_family = AF_INET6; | |
| 1142 memset(buf, 0, (sizeof(buf) /sizeof(buf[0]))); | |
| 1143 if(inet_ntop(AF_INET6, &sock_in6.sin6_addr, buf, BUFSIZ) > 0) { | |
| 1144 xprintf("%10sinet6 addr: %s/%d", " ", buf, plen); | |
| 1145 xprintf(" Scope:"); | |
| 1146 if(scope == IPV6_ADDR_ANY) xprintf(" Global"); | |
| 1147 else if(scope == IPV6_ADDR_LOOPBACK) xprintf(" Host"); | |
| 1148 else if(scope == IPV6_ADDR_LINKLOCAL) xprintf(" Link"); | |
| 1149 else if(scope == IPV6_ADDR_SITELOCAL) xprintf(" Site"); | |
| 1150 else if(scope == IPV6_ADDR_COMPATv4) xprintf(" Compat"); | |
| 1151 else xprintf("Unknown"); | |
| 1152 xprintf("\n"); | |
| 1153 } | |
| 1154 } | |
| 1155 } | |
| 1156 }//end of while. | |
| 1157 fclose(fp); | |
| 1158 fp = NULL; | |
| 1159 return; | |
| 1160 } | |
| 1161 | |
| 1162 static void display_ifconfig(IFACE_LIST *l_ptr) | |
| 1163 { | |
| 1164 HW_INFO hw_info; | |
| 1165 int hw_type = l_ptr->hw_type; | |
| 1166 | |
| 1167 get_hw_info(hw_type, &hw_info); | |
| 1168 xprintf("%-9s Link encap:%s ", l_ptr->dev_info.ifrname, hw_info.hw_title); | |
| 1169 print_hw_addr(hw_type, hw_info, l_ptr); | |
| 1170 | |
| 1171 print_media(l_ptr); | |
| 1172 | |
| 852 | 1173 xputc('\n'); |
| 841 | 1174 if(l_ptr->ifaddr) |
| 1175 print_ip_addr(l_ptr); //print addr, p-p addr, broadcast addr and mask addr. | |
| 1176 | |
| 1177 //for ipv6 to do. | |
| 1178 print_ip6_addr(l_ptr); | |
| 1179 xprintf("%10s", " "); | |
| 1180 //print flags | |
| 1181 print_iface_flags(l_ptr); | |
| 852 | 1182 if(!l_ptr->ifrmetric) l_ptr->ifrmetric = 1; |
| 841 | 1183 xprintf(" MTU:%d Metric:%d", l_ptr->ifrmtu, l_ptr->ifrmetric); |
|
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|
1184 xprintf("\n"); |
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1185 if(l_ptr->non_virtual_iface) { |
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1186 xprintf("%10s", " "); |
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1187 xprintf("RX packets:%llu errors:%lu dropped:%lu overruns:%lu frame:%lu\n", |
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1188 l_ptr->dev_info.receive_packets, l_ptr->dev_info.receive_errors, |
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|
1189 l_ptr->dev_info.receive_drop, l_ptr->dev_info.receive_fifo, |
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1190 l_ptr->dev_info.receive_frame); |
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1191 //Dummy types for non ARP hardware. |
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1192 if((hw_type == ARPHRD_CSLIP) || (hw_type == ARPHRD_CSLIP6)) |
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|
1193 xprintf("%10scompressed:%lu\n", " ", l_ptr->dev_info.receive_compressed); |
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|
1194 xprintf("%10sTX packets:%llu errors:%lu dropped:%lu overruns:%lu carrier:%lu\n", " ", |
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diff
changeset
|
1195 l_ptr->dev_info.transmit_packets, l_ptr->dev_info.transmit_errors, |
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|
1196 l_ptr->dev_info.transmit_drop, l_ptr->dev_info.transmit_fifo, |
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1197 l_ptr->dev_info.transmit_carrier); |
|
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diff
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|
1198 xprintf("%10scollisions:%lu ", " ", l_ptr->dev_info.transmit_colls); |
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1199 //Dummy types for non ARP hardware. |
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1200 if((hw_type == ARPHRD_CSLIP) || (hw_type == ARPHRD_CSLIP6)) |
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1201 xprintf("compressed:%lu ", l_ptr->dev_info.transmit_compressed); |
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1202 if(l_ptr->txqueuelen != NO_RANGE) |
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af5aab6e6678
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1203 xprintf("txqueuelen:%d ", l_ptr->txqueuelen); |
| 841 | 1204 |
|
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diff
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1205 xprintf("\n%10s", " "); |
|
af5aab6e6678
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1206 xprintf("RX bytes:%llu ", l_ptr->dev_info.receive_bytes); |
|
af5aab6e6678
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1207 xprintf("TX bytes:%llu\n", l_ptr->dev_info.transmit_bytes); |
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1208 } |
| 841 | 1209 if(l_ptr->ifrmap.irq || l_ptr->ifrmap.mem_start || l_ptr->ifrmap.dma || l_ptr->ifrmap.base_addr) { |
| 1210 xprintf("%10s", " "); | |
| 1211 if(l_ptr->ifrmap.irq) | |
| 1212 xprintf("Interrupt:%d ", l_ptr->ifrmap.irq); | |
| 1213 if(l_ptr->ifrmap.base_addr >= IO_MAP_INDEX) | |
| 1214 xprintf("Base address:0x%lx ", l_ptr->ifrmap.base_addr); | |
| 1215 if(l_ptr->ifrmap.mem_start) | |
| 1216 xprintf("Memory:%lx-%lx ", l_ptr->ifrmap.mem_start, l_ptr->ifrmap.mem_end); | |
| 1217 if(l_ptr->ifrmap.dma) | |
| 1218 xprintf("DMA chan:%x ", l_ptr->ifrmap.dma); | |
| 852 | 1219 xputc('\n'); |
| 841 | 1220 } |
| 852 | 1221 xputc('\n'); |
| 841 | 1222 return; |
| 1223 } | |
| 1224 | |
|
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|
1225 static int readconf(void) |
|
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|
1226 { |
| 852 | 1227 int num_of_req = 30; |
|
842
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
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changeset
|
1228 struct ifconf ifcon; |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
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|
1229 struct ifreq *ifre; |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
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|
1230 int num, status = -1, sokfd; |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
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changeset
|
1231 |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
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|
1232 ifcon.ifc_buf = NULL; |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
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|
1233 sokfd = socket(AF_INET, SOCK_DGRAM, 0); |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
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1234 if(sokfd < 0) { |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
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1235 perror_msg("error: no inet socket available"); |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
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1236 return -1; |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
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|
1237 } |
|
843
1b36ac92e2cc
Drive-by cleanup on ifconfig.
Rob Landley <rob@landley.net>
parents:
842
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changeset
|
1238 for (;;) { |
|
842
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
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1239 ifcon.ifc_len = sizeof(struct ifreq) * num_of_req; //Size of buffer. |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
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1240 ifcon.ifc_buf = xrealloc(ifcon.ifc_buf, ifcon.ifc_len); |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1241 |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
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changeset
|
1242 if((status = ioctl(sokfd, SIOCGIFCONF, &ifcon)) == -1) { |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
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1243 perror_msg("ioctl %#x failed", SIOCGIFCONF); |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
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|
1244 goto LOOP_BREAK; |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
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|
1245 } |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1246 //in case of overflow, increase number of requests and retry. |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
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1247 if (ifcon.ifc_len == (int)(sizeof(struct ifreq) * num_of_req)) { |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
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1248 num_of_req += 10; |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
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|
1249 continue; |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
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|
1250 } |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
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|
1251 break; |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
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|
1252 }//End of while loop |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1253 |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
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changeset
|
1254 ifre = ifcon.ifc_req; |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
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1255 for(num = 0; num < ifcon.ifc_len && ifre; num += sizeof(struct ifreq), ifre++) { |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
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1256 //Escape duplicate values from the list. |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
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|
1257 IFACE_LIST *list_ptr; |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
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|
1258 int match_found = 0; |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
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diff
changeset
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1259 for(list_ptr = iface_list_head; list_ptr != NULL; list_ptr = list_ptr->next) { |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1260 //if interface already in the list then donot add it in the list. |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
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1261 if(!strcmp(ifre->ifr_name, list_ptr->dev_info.ifrname)) { |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1262 match_found = 1; |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
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|
1263 break; |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1264 } |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1265 } |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1266 if(!match_found) { |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1267 IFACE_LIST *l_ptr = xzalloc(sizeof(IFACE_LIST)); |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1268 safe_strncpy(l_ptr->dev_info.ifrname, ifre->ifr_name, IFNAMSIZ); |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1269 add_iface_to_list(l_ptr); |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1270 errno = 0; |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1271 if(get_device_info(l_ptr) < 0) { |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1272 clear_list(); |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
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1273 perror_exit("%s: error getting interface info: %s", l_ptr->dev_info.ifrname, strerror(errno)); |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1274 } |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1275 } |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1276 }//End of for loop. |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1277 |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1278 LOOP_BREAK: |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1279 close(sokfd); |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1280 free(ifcon.ifc_buf); |
| 852 | 1281 |
|
842
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1282 return status; |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1283 } |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1284 |
| 841 | 1285 static int show_iface(char *iface_name) |
| 1286 { | |
| 1287 get_ifconfig_info(); | |
|
842
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1288 |
| 841 | 1289 if(iface_name) { |
| 1290 IFACE_LIST *l_ptr; | |
| 1291 int is_dev_found = 0; | |
| 1292 for(l_ptr = iface_list_head; l_ptr; l_ptr = l_ptr->next) { | |
| 1293 if(strcmp(l_ptr->dev_info.ifrname, iface_name) == 0) { | |
| 1294 is_dev_found = 1; | |
| 1295 display_ifconfig(l_ptr); | |
| 1296 break; | |
| 1297 } | |
| 1298 } | |
|
842
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1299 //if the given interface is not in the list. |
| 841 | 1300 if(!is_dev_found) { |
|
842
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1301 IFACE_LIST *l_ptr = xzalloc(sizeof(IFACE_LIST)); |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1302 safe_strncpy(l_ptr->dev_info.ifrname, iface_name, IFNAMSIZ); |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1303 errno = 0; |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1304 if(get_device_info(l_ptr) < 0) { |
| 852 | 1305 char *errmsg; |
|
842
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1306 if(errno == ENODEV) errmsg = "Device not found"; |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1307 else errmsg = strerror(errno); |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1308 error_msg("%s: error getting interface info: %s", iface_name, errmsg); |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1309 free(l_ptr); |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1310 return 1; |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1311 } |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1312 else display_ifconfig(l_ptr); |
|
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1313 free(l_ptr); |
| 841 | 1314 } |
| 852 | 1315 } else { |
| 841 | 1316 IFACE_LIST *l_ptr; |
|
842
af5aab6e6678
An ifconfig bugfix from the original submitter.
Rob Landley <rob@landley.net>
parents:
841
diff
changeset
|
1317 if(readconf() < 0) return 1; |
| 841 | 1318 for(l_ptr = iface_list_head; l_ptr; l_ptr = l_ptr->next) { |
| 1319 if((l_ptr->ifrflags & IFF_UP) || (toys.optflags & FLAG_a)) | |
| 1320 display_ifconfig(l_ptr); | |
| 1321 } | |
| 1322 } | |
| 1323 return 0; | |
| 1324 } | |
| 1325 | |
| 1326 static void clear_list(void) | |
| 1327 { | |
| 1328 IFACE_LIST *temp_ptr; | |
| 1329 while(iface_list_head != NULL) { | |
| 1330 temp_ptr = iface_list_head->next; | |
| 1331 free(iface_list_head); | |
| 1332 iface_list_head = temp_ptr; | |
| 1333 } | |
| 1334 return; | |
| 1335 } |