* that either displays or sets the characteristics of
* one or more of the system's networking interfaces.
*
- * Version: $Id: interface.c,v 1.25 2004/08/26 21:45:21 andersen Exp $
*
* Author: Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
* and others. Copyright 1993 MicroWalt Corporation
*
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*
* Patched to support 'add' and 'del' keywords for INET(4) addresses
* by Mrs. Brisby <mrs.brisby@nimh.org>
* {1.34} - 19980630 - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
* - gettext instead of catgets for i18n
* 10/1998 - Andi Kleen. Use interface list primitives.
- * 20001008 - Bernd Eckenfels, Patch from RH for setting mtu
+ * 20001008 - Bernd Eckenfels, Patch from RH for setting mtu
* (default AF was wrong)
*/
+#include "libbb.h"
#include "inet_common.h"
-#include <stdio.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <ctype.h>
-#include <sys/ioctl.h>
-#include <sys/types.h>
#include <net/if.h>
#include <net/if_arp.h>
-#include "busybox.h"
+#ifdef HAVE_NET_ETHERNET_H
+# include <net/ethernet.h>
+#endif
+
+#if ENABLE_FEATURE_HWIB
+/* #include <linux/if_infiniband.h> */
+# undef INFINIBAND_ALEN
+# define INFINIBAND_ALEN 20
+#endif
-#ifdef CONFIG_FEATURE_IPV6
+#if ENABLE_FEATURE_IPV6
# define HAVE_AFINET6 1
#else
# undef HAVE_AFINET6
#define _PATH_PROCNET_IFINET6 "/proc/net/if_inet6"
#ifdef HAVE_AFINET6
-
-#ifndef _LINUX_IN6_H
+# ifndef _LINUX_IN6_H
/*
- * This is in linux/include/net/ipv6.h.
+ * This is from linux/include/net/ipv6.h
*/
-
struct in6_ifreq {
struct in6_addr ifr6_addr;
uint32_t ifr6_prefixlen;
unsigned int ifr6_ifindex;
};
-
-#endif
-
+# endif
#endif /* HAVE_AFINET6 */
/* Defines for glibc2.0 users. */
#ifndef SIOCSIFTXQLEN
-#define SIOCSIFTXQLEN 0x8943
-#define SIOCGIFTXQLEN 0x8942
+# define SIOCSIFTXQLEN 0x8943
+# define SIOCGIFTXQLEN 0x8942
#endif
/* ifr_qlen is ifru_ivalue, but it isn't present in 2.0 kernel headers */
#ifndef ifr_qlen
-#define ifr_qlen ifr_ifru.ifru_mtu
+# define ifr_qlen ifr_ifru.ifru_mtu
#endif
#ifndef HAVE_TXQUEUELEN
-#define HAVE_TXQUEUELEN 1
+# define HAVE_TXQUEUELEN 1
#endif
#ifndef IFF_DYNAMIC
-#define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses */
+# define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses */
#endif
-/* This structure defines protocol families and their handlers. */
-struct aftype {
- const char *name;
- const char *title;
- int af;
- int alen;
- char *(*print) (unsigned char *);
- char *(*sprint) (struct sockaddr *, int numeric);
- int (*input) (int type, char *bufp, struct sockaddr *);
- void (*herror) (char *text);
- int (*rprint) (int options);
- int (*rinput) (int typ, int ext, char **argv);
-
- /* may modify src */
- int (*getmask) (char *src, struct sockaddr * mask, char *name);
-
- int fd;
- char *flag_file;
-};
-
/* Display an Internet socket address. */
-static char *INET_sprint(struct sockaddr *sap, int numeric)
+static const char* FAST_FUNC INET_sprint(struct sockaddr *sap, int numeric)
{
- static char buff[128];
+ static char *buff; /* defaults to NULL */
+ free(buff);
if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
- return safe_strncpy(buff, "[NONE SET]", sizeof(buff));
+ return "[NONE SET]";
+ buff = INET_rresolve((struct sockaddr_in *) sap, numeric, 0xffffff00);
+ return buff;
+}
- if (INET_rresolve(buff, sizeof(buff), (struct sockaddr_in *) sap,
- numeric, 0xffffff00) != 0)
- return NULL;
+#ifdef UNUSED_AND_BUGGY
+static int INET_getsock(char *bufp, struct sockaddr *sap)
+{
+ char *sp = bufp, *bp;
+ unsigned int i;
+ unsigned val;
+ struct sockaddr_in *sock_in;
+
+ sock_in = (struct sockaddr_in *) sap;
+ sock_in->sin_family = AF_INET;
+ sock_in->sin_port = 0;
+
+ val = 0;
+ bp = (char *) &val;
+ for (i = 0; i < sizeof(sock_in->sin_addr.s_addr); i++) {
+ *sp = toupper(*sp);
+
+ if ((unsigned)(*sp - 'A') <= 5)
+ bp[i] |= (int) (*sp - ('A' - 10));
+ else if (isdigit(*sp))
+ bp[i] |= (int) (*sp - '0');
+ else
+ return -1;
- return buff;
+ bp[i] <<= 4;
+ sp++;
+ *sp = toupper(*sp);
+
+ if ((unsigned)(*sp - 'A') <= 5)
+ bp[i] |= (int) (*sp - ('A' - 10));
+ else if (isdigit(*sp))
+ bp[i] |= (int) (*sp - '0');
+ else
+ return -1;
+
+ sp++;
+ }
+ sock_in->sin_addr.s_addr = htonl(val);
+
+ return (sp - bufp);
+}
+#endif
+
+static int FAST_FUNC INET_input(/*int type,*/ const char *bufp, struct sockaddr *sap)
+{
+ return INET_resolve(bufp, (struct sockaddr_in *) sap, 0);
+/*
+ switch (type) {
+ case 1:
+ return (INET_getsock(bufp, sap));
+ case 256:
+ return (INET_resolve(bufp, (struct sockaddr_in *) sap, 1));
+ default:
+ return (INET_resolve(bufp, (struct sockaddr_in *) sap, 0));
+ }
+*/
}
-static struct aftype inet_aftype = {
- .name = "inet",
- .title = "DARPA Internet",
- .af = AF_INET,
- .alen = 4,
- .sprint = INET_sprint,
- .fd = -1
+static const struct aftype inet_aftype = {
+ .name = "inet",
+ .title = "DARPA Internet",
+ .af = AF_INET,
+ .alen = 4,
+ .sprint = INET_sprint,
+ .input = INET_input,
};
#ifdef HAVE_AFINET6
/* Display an Internet socket address. */
/* dirty! struct sockaddr usually doesn't suffer for inet6 addresses, fst. */
-static char *INET6_sprint(struct sockaddr *sap, int numeric)
+static const char* FAST_FUNC INET6_sprint(struct sockaddr *sap, int numeric)
{
- static char buff[128];
+ static char *buff;
+ free(buff);
if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
- return safe_strncpy(buff, "[NONE SET]", sizeof(buff));
- if (INET6_rresolve
- (buff, sizeof(buff), (struct sockaddr_in6 *) sap, numeric) != 0)
- return safe_strncpy(buff, "[UNKNOWN]", sizeof(buff));
+ return "[NONE SET]";
+ buff = INET6_rresolve((struct sockaddr_in6 *) sap, numeric);
return buff;
}
-static struct aftype inet6_aftype = {
- .name = "inet6",
- .title = "IPv6",
- .af = AF_INET6,
- .alen = sizeof(struct in6_addr),
- .sprint = INET6_sprint,
- .fd = -1
+#ifdef UNUSED
+static int INET6_getsock(char *bufp, struct sockaddr *sap)
+{
+ struct sockaddr_in6 *sin6;
+
+ sin6 = (struct sockaddr_in6 *) sap;
+ sin6->sin6_family = AF_INET6;
+ sin6->sin6_port = 0;
+
+ if (inet_pton(AF_INET6, bufp, sin6->sin6_addr.s6_addr) <= 0)
+ return -1;
+
+ return 16; /* ?;) */
+}
+#endif
+
+static int FAST_FUNC INET6_input(/*int type,*/ const char *bufp, struct sockaddr *sap)
+{
+ return INET6_resolve(bufp, (struct sockaddr_in6 *) sap);
+/*
+ switch (type) {
+ case 1:
+ return (INET6_getsock(bufp, sap));
+ default:
+ return (INET6_resolve(bufp, (struct sockaddr_in6 *) sap));
+ }
+*/
+}
+
+static const struct aftype inet6_aftype = {
+ .name = "inet6",
+ .title = "IPv6",
+ .af = AF_INET6,
+ .alen = sizeof(struct in6_addr),
+ .sprint = INET6_sprint,
+ .input = INET6_input,
};
#endif /* HAVE_AFINET6 */
/* Display an UNSPEC address. */
-static char *UNSPEC_print(unsigned char *ptr)
+static char* FAST_FUNC UNSPEC_print(unsigned char *ptr)
{
- static char buff[sizeof(struct sockaddr) * 3 + 1];
+ static char *buff;
+
char *pos;
unsigned int i;
+ if (!buff)
+ buff = xmalloc(sizeof(struct sockaddr) * 3 + 1);
pos = buff;
for (i = 0; i < sizeof(struct sockaddr); i++) {
/* careful -- not every libc's sprintf returns # bytes written */
}
/* Display an UNSPEC socket address. */
-static char *UNSPEC_sprint(struct sockaddr *sap, int numeric)
+static const char* FAST_FUNC UNSPEC_sprint(struct sockaddr *sap, int numeric UNUSED_PARAM)
{
- static char buf[64];
-
if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
- return safe_strncpy(buf, "[NONE SET]", sizeof(buf));
+ return "[NONE SET]";
return UNSPEC_print((unsigned char *)sap->sa_data);
}
-static struct aftype unspec_aftype = {
- "unspec", "UNSPEC", AF_UNSPEC, 0,
- UNSPEC_print, UNSPEC_sprint, NULL, NULL,
- NULL,
+static const struct aftype unspec_aftype = {
+ .name = "unspec",
+ .title = "UNSPEC",
+ .af = AF_UNSPEC,
+ .alen = 0,
+ .print = UNSPEC_print,
+ .sprint = UNSPEC_sprint,
};
-static struct aftype * const aftypes[] = {
+static const struct aftype *const aftypes[] = {
&inet_aftype,
#ifdef HAVE_AFINET6
&inet6_aftype,
};
/* Check our protocol family table for this family. */
-static struct aftype *get_afntype(int af)
+const struct aftype* FAST_FUNC get_aftype(const char *name)
{
- struct aftype * const *afp;
+ const struct aftype *const *afp;
afp = aftypes;
while (*afp != NULL) {
- if ((*afp)->af == af)
- return *afp;
+ if (!strcmp((*afp)->name, name))
+ return (*afp);
afp++;
}
return NULL;
}
-/* Check our protocol family table for this family and return its socket */
-static int get_socket_for_af(int af)
+/* Check our protocol family table for this family. */
+static const struct aftype *get_afntype(int af)
{
- struct aftype * const *afp;
+ const struct aftype *const *afp;
afp = aftypes;
while (*afp != NULL) {
if ((*afp)->af == af)
- return (*afp)->fd;
+ return *afp;
afp++;
}
- return -1;
+ return NULL;
}
struct user_net_device_stats {
struct interface {
struct interface *next, *prev;
- char name[IFNAMSIZ]; /* interface name */
- short type; /* if type */
- short flags; /* various flags */
- int metric; /* routing metric */
- int mtu; /* MTU value */
- int tx_queue_len; /* transmit queue length */
- struct ifmap map; /* hardware setup */
- struct sockaddr addr; /* IP address */
- struct sockaddr dstaddr; /* P-P IP address */
- struct sockaddr broadaddr; /* IP broadcast address */
- struct sockaddr netmask; /* IP network mask */
+ char name[IFNAMSIZ]; /* interface name */
+ short type; /* if type */
+ short flags; /* various flags */
+ int metric; /* routing metric */
+ int mtu; /* MTU value */
+ int tx_queue_len; /* transmit queue length */
+ struct ifmap map; /* hardware setup */
+ struct sockaddr addr; /* IP address */
+ struct sockaddr dstaddr; /* P-P IP address */
+ struct sockaddr broadaddr; /* IP broadcast address */
+ struct sockaddr netmask; /* IP network mask */
int has_ip;
- char hwaddr[32]; /* HW address */
+ char hwaddr[32]; /* HW address */
int statistics_valid;
- struct user_net_device_stats stats; /* statistics */
- int keepalive; /* keepalive value for SLIP */
- int outfill; /* outfill value for SLIP */
+ struct user_net_device_stats stats; /* statistics */
+ int keepalive; /* keepalive value for SLIP */
+ int outfill; /* outfill value for SLIP */
};
-int interface_opt_a; /* show all interfaces */
+smallint interface_opt_a; /* show all interfaces */
static struct interface *int_list, *int_last;
-static int skfd = -1; /* generic raw socket desc. */
-static int sockets_open(int family)
-{
- struct aftype * const *aft;
- int sfd = -1;
- static int force = -1;
-
- if (force < 0) {
- force = 0;
- if (get_linux_version_code() < KERNEL_VERSION(2,1,0))
- force = 1;
- if (access("/proc/net", R_OK))
- force = 1;
- }
- for (aft = aftypes; *aft; aft++) {
- struct aftype *af = *aft;
- int type = SOCK_DGRAM;
-
- if (af->af == AF_UNSPEC)
- continue;
- if (family && family != af->af)
- continue;
- if (af->fd != -1) {
- sfd = af->fd;
- continue;
- }
- /* Check some /proc file first to not stress kmod */
- if (!family && !force && af->flag_file) {
- if (access(af->flag_file, R_OK))
- continue;
- }
- af->fd = socket(af->af, type, 0);
- if (af->fd >= 0)
- sfd = af->fd;
- }
- if (sfd < 0) {
- bb_error_msg("no usable address families found");
- }
- return sfd;
-}
-
-#ifdef CONFIG_FEATURE_CLEAN_UP
-static void sockets_close(void)
-{
- struct aftype * const *aft;
- for (aft = aftypes; *aft != NULL; aft++) {
- struct aftype *af = *aft;
- if( af->fd != -1 ) {
- close(af->fd);
- af->fd = -1;
- }
- }
-}
-#endif
-
+#if 0
/* like strcmp(), but knows about numbers */
+except that the freshly added calls to xatoul() brf on ethernet aliases with
+uClibc with e.g.: ife->name='lo' name='eth0:1'
static int nstrcmp(const char *a, const char *b)
{
const char *a_ptr = a;
}
return *a - *b;
}
+#endif
static struct interface *add_interface(char *name)
{
struct interface *ife, **nextp, *new;
for (ife = int_last; ife; ife = ife->prev) {
- int n = nstrcmp(ife->name, name);
+ int n = /*n*/strcmp(ife->name, name);
if (n == 0)
return ife;
}
new = xzalloc(sizeof(*new));
- safe_strncpy(new->name, name, IFNAMSIZ);
+ strncpy_IFNAMSIZ(new->name, name);
nextp = ife ? &ife->next : &int_list;
new->prev = ife;
new->next = *nextp;
return new;
}
-
-static int if_readconf(void)
-{
- int numreqs = 30;
- struct ifconf ifc;
- struct ifreq *ifr;
- int n, err = -1;
- int skfd2;
-
- /* SIOCGIFCONF currently seems to only work properly on AF_INET sockets
- (as of 2.1.128) */
- skfd2 = get_socket_for_af(AF_INET);
- if (skfd2 < 0) {
- bb_perror_msg(("warning: no inet socket available"));
- /* Try to soldier on with whatever socket we can get hold of. */
- skfd2 = sockets_open(0);
- if (skfd2 < 0)
- return -1;
- }
-
- ifc.ifc_buf = NULL;
- for (;;) {
- ifc.ifc_len = sizeof(struct ifreq) * numreqs;
- ifc.ifc_buf = xrealloc(ifc.ifc_buf, ifc.ifc_len);
-
- if (ioctl(skfd2, SIOCGIFCONF, &ifc) < 0) {
- perror("SIOCGIFCONF");
- goto out;
- }
- if (ifc.ifc_len == sizeof(struct ifreq) * numreqs) {
- /* assume it overflowed and try again */
- numreqs += 10;
- continue;
- }
- break;
- }
-
- ifr = ifc.ifc_req;
- for (n = 0; n < ifc.ifc_len; n += sizeof(struct ifreq)) {
- add_interface(ifr->ifr_name);
- ifr++;
- }
- err = 0;
-
- out:
- free(ifc.ifc_buf);
- return err;
-}
-
static char *get_name(char *name, char *p)
{
/* Extract <name> from nul-terminated p where p matches
- <name>: after leading whitespace.
- If match is not made, set name empty and return unchanged p */
- int namestart=0, nameend=0;
- while (isspace(p[namestart]))
- namestart++;
- nameend=namestart;
- while (p[nameend] && p[nameend]!=':' && !isspace(p[nameend]))
+ * <name>: after leading whitespace.
+ * If match is not made, set name empty and return unchanged p
+ */
+ char *nameend;
+ char *namestart = skip_whitespace(p);
+
+ nameend = namestart;
+ while (*nameend && *nameend != ':' && !isspace(*nameend))
nameend++;
- if (p[nameend]==':') {
- if ((nameend-namestart)<IFNAMSIZ) {
- memcpy(name,&p[namestart],nameend-namestart);
- name[nameend-namestart]='\0';
- p=&p[nameend];
+ if (*nameend == ':') {
+ if ((nameend - namestart) < IFNAMSIZ) {
+ memcpy(name, namestart, nameend - namestart);
+ name[nameend - namestart] = '\0';
+ p = nameend;
} else {
/* Interface name too large */
- name[0]='\0';
+ name[0] = '\0';
}
} else {
/* trailing ':' not found - return empty */
- name[0]='\0';
+ name[0] = '\0';
}
return p + 1;
}
* old approach of multiple scanf occurrences with large numbers of
* args. */
-/* static const char * const ss_fmt[] = { */
+/* static const char *const ss_fmt[] = { */
/* "%lln%llu%lu%lu%lu%lu%ln%ln%lln%llu%lu%lu%lu%lu%lu", */
/* "%llu%llu%lu%lu%lu%lu%ln%ln%llu%llu%lu%lu%lu%lu%lu", */
/* "%llu%llu%lu%lu%lu%lu%lu%lu%llu%llu%lu%lu%lu%lu%lu%lu" */
/* Lie about the size of the int pointed to for %n. */
#if INT_MAX == LONG_MAX
-static const char * const ss_fmt[] = {
+static const char *const ss_fmt[] = {
"%n%llu%u%u%u%u%n%n%n%llu%u%u%u%u%u",
"%llu%llu%u%u%u%u%n%n%llu%llu%u%u%u%u%u",
"%llu%llu%u%u%u%u%u%u%llu%llu%u%u%u%u%u%u"
};
#else
-static const char * const ss_fmt[] = {
+static const char *const ss_fmt[] = {
"%n%llu%lu%lu%lu%lu%n%n%n%llu%lu%lu%lu%lu%lu",
"%llu%llu%lu%lu%lu%lu%n%n%llu%llu%lu%lu%lu%lu%lu",
"%llu%llu%lu%lu%lu%lu%lu%lu%llu%llu%lu%lu%lu%lu%lu%lu"
}
}
-static inline int procnetdev_version(char *buf)
+static int procnetdev_version(char *buf)
{
if (strstr(buf, "compressed"))
return 2;
return 0;
}
+static int if_readconf(void)
+{
+ int numreqs = 30;
+ struct ifconf ifc;
+ struct ifreq *ifr;
+ int n, err = -1;
+ int skfd;
+
+ ifc.ifc_buf = NULL;
+
+ /* SIOCGIFCONF currently seems to only work properly on AF_INET sockets
+ (as of 2.1.128) */
+ skfd = socket(AF_INET, SOCK_DGRAM, 0);
+ if (skfd < 0) {
+ bb_perror_msg("error: no inet socket available");
+ return -1;
+ }
+
+ for (;;) {
+ ifc.ifc_len = sizeof(struct ifreq) * numreqs;
+ ifc.ifc_buf = xrealloc(ifc.ifc_buf, ifc.ifc_len);
+
+ if (ioctl_or_warn(skfd, SIOCGIFCONF, &ifc) < 0) {
+ goto out;
+ }
+ if (ifc.ifc_len == (int)(sizeof(struct ifreq) * numreqs)) {
+ /* assume it overflowed and try again */
+ numreqs += 10;
+ continue;
+ }
+ break;
+ }
+
+ ifr = ifc.ifc_req;
+ for (n = 0; n < ifc.ifc_len; n += sizeof(struct ifreq)) {
+ add_interface(ifr->ifr_name);
+ ifr++;
+ }
+ err = 0;
+
+ out:
+ close(skfd);
+ free(ifc.ifc_buf);
+ return err;
+}
+
static int if_readlist_proc(char *target)
{
- static int proc_read;
+ static smallint proc_read;
+
FILE *fh;
char buf[512];
struct interface *ife;
if (!target)
proc_read = 1;
- fh = fopen(_PATH_PROCNET_DEV, "r");
+ fh = fopen_or_warn(_PATH_PROCNET_DEV, "r");
if (!fh) {
- bb_perror_msg("warning: cannot open %s, limiting output", _PATH_PROCNET_DEV);
return if_readconf();
}
fgets(buf, sizeof buf, fh); /* eat line */
break;
}
if (ferror(fh)) {
- perror(_PATH_PROCNET_DEV);
+ bb_perror_msg(_PATH_PROCNET_DEV);
err = -1;
proc_read = 0;
}
static int if_readlist(void)
{
int err = if_readlist_proc(NULL);
-
+ /* Needed in order to get ethN:M aliases */
if (!err)
err = if_readconf();
return err;
}
-static int for_all_interfaces(int (*doit) (struct interface *, void *),
- void *cookie)
-{
- struct interface *ife;
-
- if (!int_list && (if_readlist() < 0))
- return -1;
- for (ife = int_list; ife; ife = ife->next) {
- int err = doit(ife, cookie);
-
- if (err)
- return err;
- }
- return 0;
-}
-
/* Fetch the interface configuration from the kernel. */
static int if_fetch(struct interface *ife)
{
struct ifreq ifr;
- int fd;
char *ifname = ife->name;
+ int skfd;
- strcpy(ifr.ifr_name, ifname);
- if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0)
+ skfd = xsocket(AF_INET, SOCK_DGRAM, 0);
+
+ strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
+ if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0) {
+ close(skfd);
return -1;
+ }
ife->flags = ifr.ifr_flags;
- strcpy(ifr.ifr_name, ifname);
- if (ioctl(skfd, SIOCGIFHWADDR, &ifr) < 0)
- memset(ife->hwaddr, 0, 32);
- else
+ strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
+ memset(ife->hwaddr, 0, 32);
+ if (ioctl(skfd, SIOCGIFHWADDR, &ifr) >= 0)
memcpy(ife->hwaddr, ifr.ifr_hwaddr.sa_data, 8);
ife->type = ifr.ifr_hwaddr.sa_family;
- strcpy(ifr.ifr_name, ifname);
- if (ioctl(skfd, SIOCGIFMETRIC, &ifr) < 0)
- ife->metric = 0;
- else
+ strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
+ ife->metric = 0;
+ if (ioctl(skfd, SIOCGIFMETRIC, &ifr) >= 0)
ife->metric = ifr.ifr_metric;
- strcpy(ifr.ifr_name, ifname);
- if (ioctl(skfd, SIOCGIFMTU, &ifr) < 0)
- ife->mtu = 0;
- else
+ strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
+ ife->mtu = 0;
+ if (ioctl(skfd, SIOCGIFMTU, &ifr) >= 0)
ife->mtu = ifr.ifr_mtu;
+ memset(&ife->map, 0, sizeof(struct ifmap));
#ifdef SIOCGIFMAP
- strcpy(ifr.ifr_name, ifname);
+ strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
if (ioctl(skfd, SIOCGIFMAP, &ifr) == 0)
ife->map = ifr.ifr_map;
- else
#endif
- memset(&ife->map, 0, sizeof(struct ifmap));
#ifdef HAVE_TXQUEUELEN
- strcpy(ifr.ifr_name, ifname);
- if (ioctl(skfd, SIOCGIFTXQLEN, &ifr) < 0)
- ife->tx_queue_len = -1; /* unknown value */
- else
+ strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
+ ife->tx_queue_len = -1; /* unknown value */
+ if (ioctl(skfd, SIOCGIFTXQLEN, &ifr) >= 0)
ife->tx_queue_len = ifr.ifr_qlen;
#else
ife->tx_queue_len = -1; /* unknown value */
#endif
- /* IPv4 address? */
- fd = get_socket_for_af(AF_INET);
- if (fd >= 0) {
- strcpy(ifr.ifr_name, ifname);
- ifr.ifr_addr.sa_family = AF_INET;
- if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
- ife->has_ip = 1;
- ife->addr = ifr.ifr_addr;
- strcpy(ifr.ifr_name, ifname);
- if (ioctl(fd, SIOCGIFDSTADDR, &ifr) < 0)
- memset(&ife->dstaddr, 0, sizeof(struct sockaddr));
- else
- ife->dstaddr = ifr.ifr_dstaddr;
-
- strcpy(ifr.ifr_name, ifname);
- if (ioctl(fd, SIOCGIFBRDADDR, &ifr) < 0)
- memset(&ife->broadaddr, 0, sizeof(struct sockaddr));
- else
- ife->broadaddr = ifr.ifr_broadaddr;
-
- strcpy(ifr.ifr_name, ifname);
- if (ioctl(fd, SIOCGIFNETMASK, &ifr) < 0)
- memset(&ife->netmask, 0, sizeof(struct sockaddr));
- else
- ife->netmask = ifr.ifr_netmask;
- } else
- memset(&ife->addr, 0, sizeof(struct sockaddr));
+ strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
+ ifr.ifr_addr.sa_family = AF_INET;
+ memset(&ife->addr, 0, sizeof(struct sockaddr));
+ if (ioctl(skfd, SIOCGIFADDR, &ifr) == 0) {
+ ife->has_ip = 1;
+ ife->addr = ifr.ifr_addr;
+ strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
+ memset(&ife->dstaddr, 0, sizeof(struct sockaddr));
+ if (ioctl(skfd, SIOCGIFDSTADDR, &ifr) >= 0)
+ ife->dstaddr = ifr.ifr_dstaddr;
+
+ strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
+ memset(&ife->broadaddr, 0, sizeof(struct sockaddr));
+ if (ioctl(skfd, SIOCGIFBRDADDR, &ifr) >= 0)
+ ife->broadaddr = ifr.ifr_broadaddr;
+
+ strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
+ memset(&ife->netmask, 0, sizeof(struct sockaddr));
+ if (ioctl(skfd, SIOCGIFNETMASK, &ifr) >= 0)
+ ife->netmask = ifr.ifr_netmask;
}
+ close(skfd);
return 0;
}
-
static int do_if_fetch(struct interface *ife)
{
if (if_fetch(ife) < 0) {
- char *errmsg;
+ const char *errmsg;
if (errno == ENODEV) {
/* Give better error message for this case. */
return 0;
}
-/* This structure defines hardware protocols and their handlers. */
-struct hwtype {
- const char * const name;
- const char *title;
- int type;
- int alen;
- char *(*print) (unsigned char *);
- int (*input) (char *, struct sockaddr *);
- int (*activate) (int fd);
- int suppress_null_addr;
-};
-
static const struct hwtype unspec_hwtype = {
.name = "unspec",
.title = "UNSPEC",
.type = ARPHRD_LOOPBACK
};
-#include <net/if_arp.h>
-
-#if (__GLIBC__ >=2 && __GLIBC_MINOR__ >= 1) || defined(_NEWLIB_VERSION)
-#include <net/ethernet.h>
-#else
-#include <linux/if_ether.h>
-#endif
-
/* Display an Ethernet address in readable format. */
-static char *pr_ether(unsigned char *ptr)
+static char* FAST_FUNC ether_print(unsigned char *ptr)
{
- static char buff[64];
+ static char *buff;
- snprintf(buff, sizeof(buff), "%02X:%02X:%02X:%02X:%02X:%02X",
+ free(buff);
+ buff = xasprintf("%02X:%02X:%02X:%02X:%02X:%02X",
(ptr[0] & 0377), (ptr[1] & 0377), (ptr[2] & 0377),
(ptr[3] & 0377), (ptr[4] & 0377), (ptr[5] & 0377)
);
}
static const struct hwtype ether_hwtype = {
- .name = "ether",
- .title = "Ethernet",
- .type = ARPHRD_ETHER,
- .alen = ETH_ALEN,
- .print = pr_ether
+ .name = "ether",
+ .title = "Ethernet",
+ .type = ARPHRD_ETHER,
+ .alen = ETH_ALEN,
+ .print = ether_print,
+ .input = in_ether
};
-#include <net/if_arp.h>
-
static const struct hwtype ppp_hwtype = {
.name = "ppp",
.title = "Point-to-Point Protocol",
.type = ARPHRD_PPP
};
-#ifdef CONFIG_FEATURE_IPV6
+#if ENABLE_FEATURE_IPV6
static const struct hwtype sit_hwtype = {
.name = "sit",
.title = "IPv6-in-IPv4",
.type = ARPHRD_SIT,
.print = UNSPEC_print,
.suppress_null_addr = 1
-} ;
+};
#endif
+#if ENABLE_FEATURE_HWIB
+static const struct hwtype ib_hwtype = {
+ .name = "infiniband",
+ .title = "InfiniBand",
+ .type = ARPHRD_INFINIBAND,
+ .alen = INFINIBAND_ALEN,
+ .print = UNSPEC_print,
+ .input = in_ib,
+};
+#endif
+
-static const struct hwtype * const hwtypes[] = {
+static const struct hwtype *const hwtypes[] = {
&loop_hwtype,
ðer_hwtype,
&ppp_hwtype,
&unspec_hwtype,
-#ifdef CONFIG_FEATURE_IPV6
+#if ENABLE_FEATURE_IPV6
&sit_hwtype,
+#endif
+#if ENABLE_FEATURE_HWIB
+ &ib_hwtype,
#endif
NULL
};
#ifdef IFF_PORTSEL
-static const char * const if_port_text[] = {
+static const char *const if_port_text[] = {
/* Keep in step with <linux/netdevice.h> */
"unknown",
"10base2",
#endif
/* Check our hardware type table for this type. */
-static const struct hwtype *get_hwntype(int type)
+const struct hwtype* FAST_FUNC get_hwtype(const char *name)
{
- const struct hwtype * const *hwp;
+ const struct hwtype *const *hwp;
+
+ hwp = hwtypes;
+ while (*hwp != NULL) {
+ if (!strcmp((*hwp)->name, name))
+ return (*hwp);
+ hwp++;
+ }
+ return NULL;
+}
+
+/* Check our hardware type table for this type. */
+const struct hwtype* FAST_FUNC get_hwntype(int type)
+{
+ const struct hwtype *const *hwp;
hwp = hwtypes;
while (*hwp != NULL) {
/* return 1 if address is all zeros */
static int hw_null_address(const struct hwtype *hw, void *ap)
{
- unsigned int i;
+ int i;
unsigned char *address = (unsigned char *) ap;
for (i = 0; i < hw->alen; i++)
return 1;
}
-static const char TRext[] = "\0\0\0Ki\0Mi\0Gi\0Ti";
+static const char TRext[] ALIGN1 = "\0\0\0Ki\0Mi\0Gi\0Ti";
static void print_bytes_scaled(unsigned long long ull, const char *end)
{
printf("X bytes:%llu (%llu.%u %sB)%s", ull, int_part, frac_part, ext, end);
}
-static const char * const ife_print_flags_strs[] = {
- "UP ",
- "BROADCAST ",
- "DEBUG ",
- "LOOPBACK ",
- "POINTOPOINT ",
- "NOTRAILERS ",
- "RUNNING ",
- "NOARP ",
- "PROMISC ",
- "ALLMULTI ",
- "SLAVE ",
- "MASTER ",
- "MULTICAST ",
-#ifdef HAVE_DYNAMIC
- "DYNAMIC "
-#endif
-};
-static const unsigned short ife_print_flags_mask[] = {
- IFF_UP,
- IFF_BROADCAST,
- IFF_DEBUG,
- IFF_LOOPBACK,
- IFF_POINTOPOINT,
- IFF_NOTRAILERS,
- IFF_RUNNING,
- IFF_NOARP,
- IFF_PROMISC,
- IFF_ALLMULTI,
- IFF_SLAVE,
- IFF_MASTER,
- IFF_MULTICAST,
-#ifdef HAVE_DYNAMIC
- IFF_DYNAMIC
-#endif
- 0
-};
+#ifdef HAVE_AFINET6
+#define IPV6_ADDR_ANY 0x0000U
-static void ife_print(struct interface *ptr)
-{
- struct aftype *ap;
- const struct hwtype *hw;
- int hf;
- int can_compress = 0;
+#define IPV6_ADDR_UNICAST 0x0001U
+#define IPV6_ADDR_MULTICAST 0x0002U
+#define IPV6_ADDR_ANYCAST 0x0004U
-#ifdef HAVE_AFINET6
+#define IPV6_ADDR_LOOPBACK 0x0010U
+#define IPV6_ADDR_LINKLOCAL 0x0020U
+#define IPV6_ADDR_SITELOCAL 0x0040U
+
+#define IPV6_ADDR_COMPATv4 0x0080U
+
+#define IPV6_ADDR_SCOPE_MASK 0x00f0U
+
+#define IPV6_ADDR_MAPPED 0x1000U
+#define IPV6_ADDR_RESERVED 0x2000U /* reserved address space */
+
+
+static void ife_print6(struct interface *ptr)
+{
FILE *f;
- char addr6[40], devname[20];
+ char addr6[40], devname[21];
struct sockaddr_in6 sap;
int plen, scope, dad_status, if_idx;
char addr6p[8][5];
+
+ f = fopen_for_read(_PATH_PROCNET_IFINET6);
+ if (f == NULL)
+ return;
+
+ while (fscanf
+ (f, "%4s%4s%4s%4s%4s%4s%4s%4s %08x %02x %02x %02x %20s\n",
+ addr6p[0], addr6p[1], addr6p[2], addr6p[3], addr6p[4],
+ addr6p[5], addr6p[6], addr6p[7], &if_idx, &plen, &scope,
+ &dad_status, devname) != EOF
+ ) {
+ if (!strcmp(devname, ptr->name)) {
+ sprintf(addr6, "%s:%s:%s:%s:%s:%s:%s:%s",
+ addr6p[0], addr6p[1], addr6p[2], addr6p[3],
+ addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
+ inet_pton(AF_INET6, addr6,
+ (struct sockaddr *) &sap.sin6_addr);
+ sap.sin6_family = AF_INET6;
+ printf(" inet6 addr: %s/%d",
+ INET6_sprint((struct sockaddr *) &sap, 1),
+ plen);
+ printf(" Scope:");
+ switch (scope & IPV6_ADDR_SCOPE_MASK) {
+ case 0:
+ puts("Global");
+ break;
+ case IPV6_ADDR_LINKLOCAL:
+ puts("Link");
+ break;
+ case IPV6_ADDR_SITELOCAL:
+ puts("Site");
+ break;
+ case IPV6_ADDR_COMPATv4:
+ puts("Compat");
+ break;
+ case IPV6_ADDR_LOOPBACK:
+ puts("Host");
+ break;
+ default:
+ puts("Unknown");
+ }
+ }
+ }
+ fclose(f);
+}
+#else
+#define ife_print6(a) ((void)0)
#endif
+static void ife_print(struct interface *ptr)
+{
+ const struct aftype *ap;
+ const struct hwtype *hw;
+ int hf;
+ int can_compress = 0;
+
ap = get_afntype(ptr->addr.sa_family);
if (ap == NULL)
ap = get_afntype(0);
if (hw == NULL)
hw = get_hwntype(-1);
- printf("%-9.9s Link encap:%s ", ptr->name, hw->title);
+ printf("%-9s Link encap:%s ", ptr->name, hw->title);
/* For some hardware types (eg Ash, ATM) we don't print the
hardware address if it's null. */
- if (hw->print != NULL && (!(hw_null_address(hw, ptr->hwaddr) &&
- hw->suppress_null_addr)))
+ if (hw->print != NULL
+ && !(hw_null_address(hw, ptr->hwaddr) && hw->suppress_null_addr)
+ ) {
printf("HWaddr %s ", hw->print((unsigned char *)ptr->hwaddr));
+ }
#ifdef IFF_PORTSEL
if (ptr->flags & IFF_PORTSEL) {
printf("Media:%s", if_port_text[ptr->map.port] /* [0] */);
printf("(auto)");
}
#endif
- puts("");
+ bb_putchar('\n');
if (ptr->has_ip) {
printf(" %s addr:%s ", ap->name,
- ap->sprint(&ptr->addr, 1));
+ ap->sprint(&ptr->addr, 1));
if (ptr->flags & IFF_POINTOPOINT) {
printf(" P-t-P:%s ", ap->sprint(&ptr->dstaddr, 1));
}
printf(" Mask:%s\n", ap->sprint(&ptr->netmask, 1));
}
-#ifdef HAVE_AFINET6
-
-#define IPV6_ADDR_ANY 0x0000U
-
-#define IPV6_ADDR_UNICAST 0x0001U
-#define IPV6_ADDR_MULTICAST 0x0002U
-#define IPV6_ADDR_ANYCAST 0x0004U
-
-#define IPV6_ADDR_LOOPBACK 0x0010U
-#define IPV6_ADDR_LINKLOCAL 0x0020U
-#define IPV6_ADDR_SITELOCAL 0x0040U
-
-#define IPV6_ADDR_COMPATv4 0x0080U
-
-#define IPV6_ADDR_SCOPE_MASK 0x00f0U
-
-#define IPV6_ADDR_MAPPED 0x1000U
-#define IPV6_ADDR_RESERVED 0x2000U /* reserved address space */
-
- if ((f = fopen(_PATH_PROCNET_IFINET6, "r")) != NULL) {
- while (fscanf
- (f, "%4s%4s%4s%4s%4s%4s%4s%4s %02x %02x %02x %02x %20s\n",
- addr6p[0], addr6p[1], addr6p[2], addr6p[3], addr6p[4],
- addr6p[5], addr6p[6], addr6p[7], &if_idx, &plen, &scope,
- &dad_status, devname) != EOF) {
- if (!strcmp(devname, ptr->name)) {
- sprintf(addr6, "%s:%s:%s:%s:%s:%s:%s:%s",
- addr6p[0], addr6p[1], addr6p[2], addr6p[3],
- addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
- inet_pton(AF_INET6, addr6,
- (struct sockaddr *) &sap.sin6_addr);
- sap.sin6_family = AF_INET6;
- printf(" inet6 addr: %s/%d",
- inet6_aftype.sprint((struct sockaddr *) &sap, 1),
- plen);
- printf(" Scope:");
- switch (scope & IPV6_ADDR_SCOPE_MASK) {
- case 0:
- printf("Global");
- break;
- case IPV6_ADDR_LINKLOCAL:
- printf("Link");
- break;
- case IPV6_ADDR_SITELOCAL:
- printf("Site");
- break;
- case IPV6_ADDR_COMPATv4:
- printf("Compat");
- break;
- case IPV6_ADDR_LOOPBACK:
- printf("Host");
- break;
- default:
- printf("Unknown");
- }
- puts("");
- }
- }
- fclose(f);
- }
-#endif
+ ife_print6(ptr);
printf(" ");
/* DONT FORGET TO ADD THE FLAGS IN ife_print_short, too */
if (ptr->flags == 0) {
printf("[NO FLAGS] ");
} else {
- int i = 0;
+ static const char ife_print_flags_strs[] ALIGN1 =
+ "UP\0"
+ "BROADCAST\0"
+ "DEBUG\0"
+ "LOOPBACK\0"
+ "POINTOPOINT\0"
+ "NOTRAILERS\0"
+ "RUNNING\0"
+ "NOARP\0"
+ "PROMISC\0"
+ "ALLMULTI\0"
+ "SLAVE\0"
+ "MASTER\0"
+ "MULTICAST\0"
+#ifdef HAVE_DYNAMIC
+ "DYNAMIC\0"
+#endif
+ ;
+ static const unsigned short ife_print_flags_mask[] ALIGN2 = {
+ IFF_UP,
+ IFF_BROADCAST,
+ IFF_DEBUG,
+ IFF_LOOPBACK,
+ IFF_POINTOPOINT,
+ IFF_NOTRAILERS,
+ IFF_RUNNING,
+ IFF_NOARP,
+ IFF_PROMISC,
+ IFF_ALLMULTI,
+ IFF_SLAVE,
+ IFF_MASTER,
+ IFF_MULTICAST
+#ifdef HAVE_DYNAMIC
+ ,IFF_DYNAMIC
+#endif
+ };
+ const unsigned short *mask = ife_print_flags_mask;
+ const char *str = ife_print_flags_strs;
do {
- if (ptr->flags & ife_print_flags_mask[i]) {
- printf(ife_print_flags_strs[i]);
+ if (ptr->flags & *mask) {
+ printf("%s ", str);
}
- } while (ife_print_flags_mask[++i]);
+ mask++;
+ str += strlen(str) + 1;
+ } while (*str);
}
/* DONT FORGET TO ADD THE FLAGS IN ife_print_short */
if (ptr->outfill || ptr->keepalive)
printf(" Outfill:%d Keepalive:%d", ptr->outfill, ptr->keepalive);
#endif
- puts("");
+ bb_putchar('\n');
/* If needed, display the interface statistics. */
printf(" ");
printf("RX packets:%llu errors:%lu dropped:%lu overruns:%lu frame:%lu\n",
- ptr->stats.rx_packets, ptr->stats.rx_errors,
- ptr->stats.rx_dropped, ptr->stats.rx_fifo_errors,
- ptr->stats.rx_frame_errors);
+ ptr->stats.rx_packets, ptr->stats.rx_errors,
+ ptr->stats.rx_dropped, ptr->stats.rx_fifo_errors,
+ ptr->stats.rx_frame_errors);
if (can_compress)
printf(" compressed:%lu\n",
- ptr->stats.rx_compressed);
+ ptr->stats.rx_compressed);
printf(" ");
printf("TX packets:%llu errors:%lu dropped:%lu overruns:%lu carrier:%lu\n",
- ptr->stats.tx_packets, ptr->stats.tx_errors,
- ptr->stats.tx_dropped, ptr->stats.tx_fifo_errors,
- ptr->stats.tx_carrier_errors);
+ ptr->stats.tx_packets, ptr->stats.tx_errors,
+ ptr->stats.tx_dropped, ptr->stats.tx_fifo_errors,
+ ptr->stats.tx_carrier_errors);
printf(" collisions:%lu ", ptr->stats.collisions);
if (can_compress)
printf("compressed:%lu ", ptr->stats.tx_compressed);
printf("\n R");
print_bytes_scaled(ptr->stats.rx_bytes, " T");
print_bytes_scaled(ptr->stats.tx_bytes, "\n");
-
}
- if ((ptr->map.irq || ptr->map.mem_start || ptr->map.dma ||
- ptr->map.base_addr)) {
+ if (ptr->map.irq || ptr->map.mem_start
+ || ptr->map.dma || ptr->map.base_addr
+ ) {
printf(" ");
if (ptr->map.irq)
printf("Interrupt:%d ", ptr->map.irq);
- if (ptr->map.base_addr >= 0x100) /* Only print devices using it for
- I/O maps */
+ if (ptr->map.base_addr >= 0x100) /* Only print devices using it for I/O maps */
printf("Base address:0x%lx ",
- (unsigned long) ptr->map.base_addr);
+ (unsigned long) ptr->map.base_addr);
if (ptr->map.mem_start) {
printf("Memory:%lx-%lx ", ptr->map.mem_start,
- ptr->map.mem_end);
+ ptr->map.mem_end);
}
if (ptr->map.dma)
printf("DMA chan:%x ", ptr->map.dma);
- puts("");
+ bb_putchar('\n');
}
- puts("");
+ bb_putchar('\n');
}
-
-static int do_if_print(struct interface *ife, void *cookie)
+static int do_if_print(struct interface *ife) /*, int *opt_a)*/
{
- int *opt_a = (int *) cookie;
int res;
res = do_if_fetch(ife);
if (res >= 0) {
- if ((ife->flags & IFF_UP) || *opt_a)
+ if ((ife->flags & IFF_UP) || interface_opt_a)
ife_print(ife);
}
return res;
return ife;
}
+#ifdef UNUSED
+static int for_all_interfaces(int (*doit) (struct interface *, void *),
+ void *cookie)
+{
+ struct interface *ife;
+
+ if (!int_list && (if_readlist() < 0))
+ return -1;
+ for (ife = int_list; ife; ife = ife->next) {
+ int err = doit(ife, cookie);
+ if (err)
+ return err;
+ }
+ return 0;
+}
+#endif
+
/* for ipv4 add/del modes */
static int if_print(char *ifname)
{
+ struct interface *ife;
int res;
if (!ifname) {
- res = for_all_interfaces(do_if_print, &interface_opt_a);
- } else {
- struct interface *ife;
-
- ife = lookup_interface(ifname);
- res = do_if_fetch(ife);
- if (res >= 0)
- ife_print(ife);
+ /*res = for_all_interfaces(do_if_print, &interface_opt_a);*/
+ if (!int_list && (if_readlist() < 0))
+ return -1;
+ for (ife = int_list; ife; ife = ife->next) {
+ int err = do_if_print(ife); /*, &interface_opt_a);*/
+ if (err)
+ return err;
+ }
+ return 0;
}
+ ife = lookup_interface(ifname);
+ res = do_if_fetch(ife);
+ if (res >= 0)
+ ife_print(ife);
return res;
}
-int display_interfaces(char *ifname);
-int display_interfaces(char *ifname)
+#if ENABLE_FEATURE_HWIB
+/* Input an Infiniband address and convert to binary. */
+int FAST_FUNC in_ib(const char *bufp, struct sockaddr *sap)
{
- int status;
+ sap->sa_family = ib_hwtype.type;
+//TODO: error check?
+ hex2bin((char*)sap->sa_data, bufp, INFINIBAND_ALEN);
+# ifdef HWIB_DEBUG
+ fprintf(stderr, "in_ib(%s): %s\n", bufp, UNSPEC_print(sap->sa_data));
+# endif
+ return 0;
+}
+#endif
- /* Create a channel to the NET kernel. */
- if ((skfd = sockets_open(0)) < 0) {
- bb_perror_msg_and_die("socket");
- }
+int FAST_FUNC display_interfaces(char *ifname)
+{
+ int status;
- /* Do we have to show the current setup? */
status = if_print(ifname);
-#ifdef CONFIG_FEATURE_CLEAN_UP
- sockets_close();
-#endif
- exit(status < 0);
+
+ return (status < 0); /* status < 0 == 1 -- error */
}
projects / oweals / busybox.git / blobdiff