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-rw-r--r--toys/other/ifconfig.c517
1 files changed, 0 insertions, 517 deletions
diff --git a/toys/other/ifconfig.c b/toys/other/ifconfig.c
deleted file mode 100644
index 1d2a41dc..00000000
--- a/toys/other/ifconfig.c
+++ /dev/null
@@ -1,517 +0,0 @@
-/* ifconfig.c - Configure network interface.
- *
- * Copyright 2012 Ranjan Kumar <ranjankumar.bth@gmail.com>
- * Copyright 2012 Kyungwan Han <asura321@gamil.com>
- * Reviewed by Kyungsu Kim <kaspyx@gmail.com>
- *
- * Not in SUSv4.
-
-USE_IFCONFIG(NEWTOY(ifconfig, "^?a", TOYFLAG_SBIN))
-
-config IFCONFIG
- bool "ifconfig"
- default y
- help
- usage: ifconfig [-a] [INTERFACE [ACTION...]]
-
- Display or configure network interface.
-
- With no arguments, display active interfaces. First argument is interface
- to operate on, one argument by itself displays that interface.
-
- -a Show all interfaces, not just active ones
-
- Additional arguments are actions to perform on the interface:
-
- ADDRESS[/NETMASK] - set IPv4 address (1.2.3.4/5)
- default - unset ipv4 address
- add|del ADDRESS[/PREFIXLEN] - add/remove IPv6 address (1111::8888/128)
- up - enable interface
- down - disable interface
-
- netmask|broadcast|pointopoint ADDRESS - set more IPv4 characteristics
- hw ether|infiniband ADDRESS - set LAN hardware address (AA:BB:CC...)
- txqueuelen LEN - number of buffered packets before output blocks
- mtu LEN - size of outgoing packets (Maximum Transmission Unit)
-
- Flags you can set on an interface (or -remove by prefixing with -):
- arp - don't use Address Resolution Protocol to map LAN routes
- promisc - don't discard packets that aren't to this LAN hardware address
- multicast - force interface into multicast mode if the driver doesn't
- allmulti - promisc for multicast packets
-
- Obsolete fields included for historical purposes:
- irq|io_addr|mem_start ADDR - micromanage obsolete hardware
- outfill|keepalive INTEGER - SLIP analog dialup line quality monitoring
- metric INTEGER - added to Linux 0.9.10 with comment "never used", still true
-*/
-
-#define FOR_ifconfig
-#include "toys.h"
-
-#include <net/if_arp.h>
-#include <net/ethernet.h>
-
-GLOBALS(
- int sockfd;
-)
-
-// Convert hostname to binary address for AF_INET or AF_INET6
-// return /prefix (or range max if none)
-int get_addrinfo(char *host, sa_family_t af, void *addr)
-{
- struct addrinfo hints, *result, *rp = 0;
- int status, len;
- char *from, *slash;
-
- memset(&hints, 0 , sizeof(struct addrinfo));
- hints.ai_family = af;
- hints.ai_socktype = SOCK_STREAM;
-
- slash = strchr(host, '/');
- if (slash) *slash = 0;
-
- status = getaddrinfo(host, NULL, &hints, &result);
- if (!status)
- for (rp = result; rp; rp = rp->ai_next)
- if (rp->ai_family == af) break;
- if (!rp) error_exit("bad address '%s' : %s", host, gai_strerror(status));
-
- // ai_addr isn't struct in_addr or in6_addr, it's struct sockaddr. Of course.
- // You'd think ipv4 and ipv6 would have some basic compatibility, but no.
- from = ((char *)rp->ai_addr) + 4;
- if (af == AF_INET6) {
- len = 16;
- from += 4; // skip "flowinfo" field ipv6 puts before address
- } else len = 4;
- memcpy(addr, from, len);
- freeaddrinfo(result);
-
- len = -1;
- if (slash) len = atolx_range(slash+1, 0, (af == AF_INET) ? 32 : 128);
-
- return len;
-}
-
-static void display_ifconfig(char *name, int always, unsigned long long val[])
-{
- struct ifreq ifre;
- struct {
- int type;
- char *title;
- } types[] = {
- {ARPHRD_LOOPBACK, "Local Loopback"}, {ARPHRD_ETHER, "Ethernet"},
- {ARPHRD_PPP, "Point-to-Point Protocol"}, {ARPHRD_INFINIBAND, "InfiniBand"},
- {ARPHRD_SIT, "IPv6-in-IPv4"}, {-1, "UNSPEC"}
- };
- int i;
- char *pp;
- FILE *fp;
- short flags;
-
- xstrncpy(ifre.ifr_name, name, IFNAMSIZ);
- if (ioctl(TT.sockfd, SIOCGIFFLAGS, &ifre)<0) perror_exit_raw(name);
- flags = ifre.ifr_flags;
- if (!always && !(flags & IFF_UP)) return;
-
- // query hardware type and hardware address
- i = ioctl(TT.sockfd, SIOCGIFHWADDR, &ifre);
-
- for (i=0; i < (sizeof(types)/sizeof(*types))-1; i++)
- if (ifre.ifr_hwaddr.sa_family == types[i].type) break;
-
- xprintf("%-9s Link encap:%s ", name, types[i].title);
- if(i >= 0 && ifre.ifr_hwaddr.sa_family == ARPHRD_ETHER) {
- xprintf("HWaddr ");
- for (i=0; i<6; i++) xprintf(":%02x"+!i, ifre.ifr_hwaddr.sa_data[i]);
- }
- xputc('\n');
-
- // If an address is assigned record that.
-
- ifre.ifr_addr.sa_family = AF_INET;
- memset(&ifre.ifr_addr, 0, sizeof(ifre.ifr_addr));
- ioctl(TT.sockfd, SIOCGIFADDR, &ifre);
- pp = (char *)&ifre.ifr_addr;
- for (i = 0; i<sizeof(ifre.ifr_addr); i++) if (pp[i]) break;
-
- if (i != sizeof(ifre.ifr_addr)) {
- struct sockaddr_in *si = (struct sockaddr_in *)&ifre.ifr_addr;
- struct {
- char *name;
- int flag, ioctl;
- } addr[] = {
- {"addr", 0, 0},
- {"P-t-P", IFF_POINTOPOINT, SIOCGIFDSTADDR},
- {"Bcast", IFF_BROADCAST, SIOCGIFBRDADDR},
- {"Mask", 0, SIOCGIFNETMASK}
- };
-
- xprintf("%10c%s", ' ', (si->sin_family == AF_INET) ? "inet" :
- (si->sin_family == AF_INET6) ? "inet6" : "unspec");
-
- for (i=0; i < sizeof(addr)/sizeof(*addr); i++) {
- if (!addr[i].flag || (flags & addr[i].flag)) {
- if (addr[i].ioctl && ioctl(TT.sockfd, addr[i].ioctl, &ifre))
- si->sin_family = 0;
- xprintf(" %s:%s ", addr[i].name,
- (si->sin_family == 0xFFFF || !si->sin_family)
- ? "[NOT SET]" : inet_ntoa(si->sin_addr));
- }
- }
-
- xputc('\n');
- }
-
- fp = fopen(pp = "/proc/net/if_inet6", "r");
- if (fp) {
- char iface_name[IFNAMSIZ];
- int plen, iscope;
-
- while (fgets(toybuf, sizeof(toybuf), fp)) {
- int nitems;
- char ipv6_addr[40];
-
- nitems = sscanf(toybuf, "%32s %*08x %02x %02x %*02x %15s\n",
- ipv6_addr, &plen, &iscope, iface_name);
- if (nitems<0 && feof(fp)) break;
- if (nitems != 4) perror_exit("bad %s", pp);
-
- if (!strcmp(name, iface_name)) {
- struct sockaddr_in6 s6;
- char *ptr = ipv6_addr+sizeof(ipv6_addr)-1;
-
- // convert giant hex string into colon-spearated ipv6 address by
- // inserting ':' every 4 characters.
- for (i = 32; i; i--)
- if ((*(ptr--) = ipv6_addr[i])) if (!(i&3)) *(ptr--) = ':';
-
- // Convert to binary and back to get abbreviated :: version
- if (inet_pton(AF_INET6, ipv6_addr, (void *)&s6.sin6_addr) > 0) {
- if (inet_ntop(AF_INET6, &s6.sin6_addr, toybuf, sizeof(toybuf))) {
- char *scopes[] = {"Global","Host","Link","Site","Compat"},
- *scope = "Unknown";
-
- for (i=0; i < sizeof(scopes)/sizeof(*scopes); i++)
- if (iscope == (!!i)<<(i+3)) scope = scopes[i];
- xprintf("%10cinet6 addr: %s/%d Scope: %s\n",
- ' ', toybuf, plen, scope);
- }
- }
- }
- }
- fclose(fp);
- }
-
- xprintf("%10c", ' ');
-
- if (flags) {
- unsigned short mask = 1;
- char **s, *str[] = {
- "UP", "BROADCAST", "DEBUG", "LOOPBACK", "POINTOPOINT", "NOTRAILERS",
- "RUNNING", "NOARP", "PROMISC", "ALLMULTI", "MASTER", "SLAVE", "MULTICAST",
- "PORTSEL", "AUTOMEDIA", "DYNAMIC", NULL
- };
-
- for (s = str; *s; s++) {
- if (flags & mask) xprintf("%s ", *s);
- mask = mask << 1;
- }
- } else xprintf("[NO FLAGS] ");
-
- if (ioctl(TT.sockfd, SIOCGIFMTU, &ifre) < 0) ifre.ifr_mtu = 0;
- xprintf(" MTU:%d", ifre.ifr_mtu);
- if (ioctl(TT.sockfd, SIOCGIFMETRIC, &ifre) < 0) ifre.ifr_metric = 0;
- if (!ifre.ifr_metric) ifre.ifr_metric = 1;
- xprintf(" Metric:%d", ifre.ifr_metric);
-
- // non-virtual interface
-
- if (val) {
- char *label[] = {"RX bytes", "RX packets", "errors", "dropped", "overruns",
- "frame", 0, 0, "TX bytes", "TX packets", "errors", "dropped", "overruns",
- "collisions", "carrier", 0, "txqueuelen"};
- signed char order[] = {-1, 1, 2, 3, 4, 5, -1, 9, 10, 11, 12, 14, -1,
- 13, 16, -1, 0, 8};
- int i;
-
- // Query txqueuelen
- if (ioctl(TT.sockfd, SIOCGIFTXQLEN, &ifre) >= 0) val[16] = ifre.ifr_qlen;
- else val[16] = -1;
-
- for (i = 0; i < sizeof(order); i++) {
- int j = order[i];
-
- if (j < 0) xprintf("\n%10c", ' ');
- else xprintf("%s:%llu ", label[j], val[j]);
- }
- }
- xputc('\n');
-
- if(!ioctl(TT.sockfd, SIOCGIFMAP, &ifre) && (ifre.ifr_map.irq ||
- ifre.ifr_map.mem_start || ifre.ifr_map.dma || ifre.ifr_map.base_addr))
- {
- xprintf("%10c", ' ');
- if(ifre.ifr_map.irq) xprintf("Interrupt:%d ", ifre.ifr_map.irq);
- if(ifre.ifr_map.base_addr >= 0x100) // IO_MAP_INDEX
- xprintf("Base address:0x%x ", ifre.ifr_map.base_addr);
- if(ifre.ifr_map.mem_start)
- xprintf("Memory:%lx-%lx ", ifre.ifr_map.mem_start, ifre.ifr_map.mem_end);
- if(ifre.ifr_map.dma) xprintf("DMA chan:%x ", ifre.ifr_map.dma);
- xputc('\n');
- }
- xputc('\n');
-}
-
-static void show_iface(char *iface_name)
-{
- char *name;
- struct string_list *ifaces = 0, *sl;
- int i, j;
- FILE *fp;
-
- fp = xfopen("/proc/net/dev", "r");
-
- for (i=0; fgets(toybuf, sizeof(toybuf), fp); i++) {
- char *buf = toybuf;
- unsigned long long val[17];
-
- if (i<2) continue;
-
- while (isspace(*buf)) buf++;
- name = strsep(&buf, ":");
- if(!buf) error_exit("bad name %s", name);
-
- errno = 0;
- for (j=0; j<16 && !errno; j++) val[j] = strtoll(buf, &buf, 0);
- if (errno) perror_exit("bad %s at %s", name, buf);
-
- if (iface_name) {
- if (!strcmp(iface_name, name)) {
- display_ifconfig(iface_name, 1, val);
-
- return;
- }
- } else {
- sl = xmalloc(sizeof(*sl)+strlen(name)+1);
- strcpy(sl->str, name);
- sl->next = ifaces;
- ifaces = sl;
-
- display_ifconfig(sl->str, toys.optflags & FLAG_a, val);
- }
- }
- fclose(fp);
-
- if (iface_name) display_ifconfig(iface_name, 1, 0);
- else {
- struct ifconf ifcon;
- struct ifreq *ifre;
- int num;
-
- // Loop until buffer's big enough
- ifcon.ifc_buf = NULL;
- for (num = 30;;num += 10) {
- ifcon.ifc_len = sizeof(struct ifreq)*num;
- ifcon.ifc_buf = xrealloc(ifcon.ifc_buf, ifcon.ifc_len);
- xioctl(TT.sockfd, SIOCGIFCONF, &ifcon);
- if (ifcon.ifc_len != sizeof(struct ifreq)*num) break;
- }
-
- ifre = ifcon.ifc_req;
- for(num = 0; num < ifcon.ifc_len && ifre; num += sizeof(struct ifreq), ifre++)
- {
- // Skip duplicates
- for(sl = ifaces; sl; sl = sl->next)
- if(!strcmp(sl->str, ifre->ifr_name)) break;
-
- if(!sl) display_ifconfig(ifre->ifr_name, toys.optflags & FLAG_a, 0);
- }
-
- free(ifcon.ifc_buf);
- }
-
- llist_traverse(ifaces, free);
-}
-
-// Encode offset and size of field into an int, and make result negative
-#define IFREQ_OFFSZ(x) -(int)((offsetof(struct ifreq, x)<<16) + sizeof(ifre.x))
-
-void ifconfig_main(void)
-{
- char **argv = toys.optargs;
- struct ifreq ifre;
- int i;
-
- TT.sockfd = xsocket(AF_INET, SOCK_DGRAM, 0);
- if(toys.optc < 2) {
- show_iface(*argv);
- return;
- }
-
- // Open interface
- memset(&ifre, 0, sizeof(struct ifreq));
- xstrncpy(ifre.ifr_name, *argv, IFNAMSIZ);
-
- // Perform operations on interface
- while(*++argv) {
- // Table of known operations
- struct argh {
- char *name;
- int on, off; // set, clear
- } try[] = {
- {0, IFF_UP|IFF_RUNNING, SIOCSIFADDR},
- {"up", IFF_UP|IFF_RUNNING, 0},
- {"down", 0, IFF_UP},
- {"arp", 0, IFF_NOARP},
- {"promisc", IFF_PROMISC, 0},
- {"allmulti", IFF_ALLMULTI, 0},
- {"multicast", IFF_MULTICAST, 0},
- {"pointopoint", IFF_POINTOPOINT, SIOCSIFDSTADDR},
- {"broadcast", IFF_BROADCAST, SIOCSIFBRDADDR},
- {"netmask", 0, SIOCSIFNETMASK},
- {"dstaddr", 0, SIOCSIFDSTADDR},
- {"mtu", IFREQ_OFFSZ(ifr_mtu), SIOCSIFMTU},
- {"keepalive", IFREQ_OFFSZ(ifr_data), SIOCDEVPRIVATE}, // SIOCSKEEPALIVE
- {"outfill", IFREQ_OFFSZ(ifr_data), SIOCDEVPRIVATE+2}, // SIOCSOUTFILL
- {"metric", IFREQ_OFFSZ(ifr_metric), SIOCSIFMETRIC},
- {"txqueuelen", IFREQ_OFFSZ(ifr_qlen), SIOCSIFTXQLEN},
- {"mem_start", IFREQ_OFFSZ(ifr_map.mem_start), SIOCSIFMAP},
- {"io_addr", IFREQ_OFFSZ(ifr_map.base_addr), SIOCSIFMAP},
- {"irq", IFREQ_OFFSZ(ifr_map.irq), SIOCSIFMAP},
- {"inet", 0, 0},
- {"inet6", 0, 0}
- };
- char *s = *argv;
- int rev = (*s == '-');
-
- s += rev;
-
- // "set hardware address" is oddball enough to special case
- if (!strcmp(*argv, "hw")) {
- char *hw_addr, *ptr, *p;
- struct sockaddr *sock = &ifre.ifr_hwaddr;
- int count = 6;
-
- ptr = p = (char *)sock->sa_data;
- memset(sock, 0, sizeof(struct sockaddr));
- if (argv[1]) {
- if (!strcmp("ether", *++argv)) sock->sa_family = ARPHRD_ETHER;
- else if (!strcmp("infiniband", *argv)) {
- sock->sa_family = ARPHRD_INFINIBAND;
- count = 20;
- p = ptr = toybuf;
- }
- }
- if (!sock->sa_family || !argv[1]) help_exit("bad hw '%s'", *argv);
- hw_addr = *++argv;
-
- // Parse and verify address.
- while (*hw_addr && (p-ptr) < count) {
- int val, len = 0;
-
- if (*hw_addr == ':') hw_addr++;
- sscanf(hw_addr, "%2x%n", &val, &len);
- if (!len || len > 2) break; // 1 nibble can be set e.g. C2:79:38:95:D:A
- hw_addr += len;
- *p++ = val;
- }
-
- if ((p-ptr) != count || *hw_addr)
- error_exit("bad hw-addr '%s'", *argv);
-
- // the linux kernel's "struct sockaddr" (include/linux/socket.h in the
- // kernel source) only has 14 bytes of sa_data, and an infiniband address
- // is 20. So if we go through the ioctl, the kernel will truncate
- // infiniband addresses, meaning we have to go through sysfs instead.
- if (sock->sa_family == ARPHRD_INFINIBAND && !strchr(ifre.ifr_name, '/')) {
- int fd;
-
- sprintf(toybuf, "/sys/class/net/%s/address", ifre.ifr_name);
- fd = xopen(toybuf, O_RDWR);
- xwrite(fd, *argv, strlen(*argv));
- close(fd);
- } else xioctl(TT.sockfd, SIOCSIFHWADDR, &ifre);
- continue;
-
- // Add/remove ipv6 address to interface
-
- } else if (!strcmp(*argv, "add") || !strcmp(*argv, "del")) {
- struct ifreq_inet6 {
- struct in6_addr addr;
- unsigned prefix;
- int index;
- } ifre6;
- int plen, fd6 = xsocket(AF_INET6, SOCK_DGRAM, 0);
-
- if (!argv[1]) help_exit("%s", *argv);
-
- plen = get_addrinfo(argv[1], AF_INET6, &ifre6.addr);
- if (plen < 0) plen = 128;
- xioctl(fd6, SIOCGIFINDEX, &ifre);
- ifre6.index = ifre.ifr_ifindex;
- ifre6.prefix = plen;
- xioctl(fd6, **(argv++)=='a' ? SIOCSIFADDR : SIOCDIFADDR, &ifre6);
-
- close(fd6);
- continue;
- // Iterate through table to find/perform operation
- } else for (i = 0; i < ARRAY_LEN(try); i++) {
- struct argh *t = try+i;
- int on = t->on, off = t->off;
-
- if (!t->name) {
- if (isdigit(**argv) || !strcmp(*argv, "default")) argv--;
- else continue;
- } else if (strcmp(t->name, s)) continue;
-
- // Is this an SIOCSI entry?
- if ((off|0xff) == 0x89ff) {
- if (!rev) {
- if (!*++argv) error_exit("%s needs argument", t->name);
-
- // Assign value to ifre field and call ioctl? (via IFREQ_OFFSZ.)
- if (on < 0) {
- long l = strtoul(*argv, 0, 0);
-
- if (off == SIOCSIFMAP) xioctl(TT.sockfd, SIOCGIFMAP, &ifre);
- on = -on;
- poke((on>>16) + (char *)&ifre, l, on&15);
- xioctl(TT.sockfd, off, &ifre);
- break;
- } else {
- struct sockaddr_in *si = (struct sockaddr_in *)&ifre.ifr_addr;
- int mask = -1;
-
- si->sin_family = AF_INET;
-
- if (!strcmp(*argv, "default")) si->sin_addr.s_addr = INADDR_ANY;
- else mask = get_addrinfo(*argv, AF_INET, &si->sin_addr);
- xioctl(TT.sockfd, off, &ifre);
-
- // Handle /netmask
- if (mask >= 0) {
- // sin_addr probably isn't unaligned, but just in case...
- mask = htonl((~0)<<(32-mask));
- memcpy(&si->sin_addr, &mask, 4);
- xioctl(TT.sockfd, SIOCSIFNETMASK, &ifre);
- }
- }
- }
- off = 0;
- }
-
- // Set flags
- if (on || off) {
- xioctl(TT.sockfd, SIOCGIFFLAGS, &ifre);
- ifre.ifr_flags &= ~(rev ? on : off);
- ifre.ifr_flags |= (rev ? off : on);
- xioctl(TT.sockfd, SIOCSIFFLAGS, &ifre);
- }
-
- break;
- }
- if (i == sizeof(try)/sizeof(*try)) help_exit("bad argument '%s'", *argv);
- }
- close(TT.sockfd);
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-02 11:42:28 +0000