diff options
Diffstat (limited to 'freebsd/sbin/ifconfig/ifconfig.c')
| -rw-r--r-- | freebsd/sbin/ifconfig/ifconfig.c | 132 |
1 files changed, 115 insertions, 17 deletions
diff --git a/freebsd/sbin/ifconfig/ifconfig.c b/freebsd/sbin/ifconfig/ifconfig.c index 1e79e0cd..2a04b8cf 100644 --- a/freebsd/sbin/ifconfig/ifconfig.c +++ b/freebsd/sbin/ifconfig/ifconfig.c @@ -86,6 +86,7 @@ static const char rcsid[] = #ifdef JAIL #include <jail.h> #endif +#include <stdbool.h> #include <stdio.h> #include <stdlib.h> #include <string.h> @@ -129,6 +130,8 @@ static void status(const struct afswtch *afp, const struct sockaddr_dl *sdl, static void tunnel_status(int s); static _Noreturn void usage(void); +static int getifflags(const char *ifname, int us); + static struct afswtch *af_getbyname(const char *name); static struct afswtch *af_getbyfamily(int af); static void af_other_status(int); @@ -146,6 +149,39 @@ struct ifa_order_elt { TAILQ_HEAD(ifa_queue, ifa_order_elt); +static struct module_map_entry { + const char *ifname; + const char *kldname; +} module_map[] = { + { + .ifname = "tun", + .kldname = "if_tuntap", + }, + { + .ifname = "tap", + .kldname = "if_tuntap", + }, + { + .ifname = "vmnet", + .kldname = "if_tuntap", + }, + { + .ifname = "ipsec", + .kldname = "ipsec", + }, + { + /* + * This mapping exists because there is a conflicting enc module + * in CAM. ifconfig's guessing behavior will attempt to match + * the ifname to a module as well as if_${ifname} and clash with + * CAM enc. This is an assertion of the correct module to load. + */ + .ifname = "enc", + .kldname = "if_enc", + }, +}; + + void opt_register(struct option *p) { @@ -437,6 +473,7 @@ main(int argc, char *argv[]) const char *ifname; struct option *p; size_t iflen; + int flags; #ifdef __rtems__ struct getopt_data getopt_data; memset(&getopt_data, 0, sizeof(getopt_data)); @@ -607,6 +644,25 @@ main(int argc, char *argv[]) argc--, argv++; } + /* + * Check for a requested configuration action on a single interface, + * which doesn't require building, sorting, and searching the entire + * system address list + */ + if ((argc > 0) && (ifname != NULL)) { + iflen = strlcpy(name, ifname, sizeof(name)); + if (iflen >= sizeof(name)) { + warnx("%s: interface name too long, skipping", ifname); + } else { + flags = getifflags(name, -1); + if (!(((flags & IFF_CANTCONFIG) != 0) || + (downonly && (flags & IFF_UP) != 0) || + (uponly && (flags & IFF_UP) == 0))) + ifconfig(argc, argv, 0, afp); + } + goto done; + } + if (getifaddrs(&ifap) != 0) err(EXIT_FAILURE, "getifaddrs"); @@ -690,6 +746,7 @@ main(int argc, char *argv[]) printf("\n"); freeifaddrs(ifap); +done: freeformat(); exit(exit_code); } @@ -1101,6 +1158,28 @@ setifdstaddr(const char *addr, int param __unused, int s, afp->af_getaddr(addr, DSTADDR); } +static int +getifflags(const char *ifname, int us) +{ + struct ifreq my_ifr; + int s; + + memset(&my_ifr, 0, sizeof(my_ifr)); + (void) strlcpy(my_ifr.ifr_name, ifname, sizeof(my_ifr.ifr_name)); + if (us < 0) { + if ((s = socket(AF_LOCAL, SOCK_DGRAM, 0)) < 0) + err(1, "socket(family AF_LOCAL,SOCK_DGRAM"); + } else + s = us; + if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&my_ifr) < 0) { + Perror("ioctl (SIOCGIFFLAGS)"); + exit(1); + } + if (us < 0) + close(s); + return ((my_ifr.ifr_flags & 0xffff) | (my_ifr.ifr_flagshigh << 16)); +} + /* * Note: doing an SIOCIGIFFLAGS scribbles on the union portion * of the ifreq structure, which may confuse other parts of ifconfig. @@ -1112,20 +1191,14 @@ setifflags(const char *vname, int value, int s, const struct afswtch *afp) struct ifreq my_ifr; int flags; - memset(&my_ifr, 0, sizeof(my_ifr)); - (void) strlcpy(my_ifr.ifr_name, name, sizeof(my_ifr.ifr_name)); - - if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&my_ifr) < 0) { - Perror("ioctl (SIOCGIFFLAGS)"); - exit(1); - } - flags = (my_ifr.ifr_flags & 0xffff) | (my_ifr.ifr_flagshigh << 16); - + flags = getifflags(name, s); if (value < 0) { value = -value; flags &= ~value; } else flags |= value; + memset(&my_ifr, 0, sizeof(my_ifr)); + (void) strlcpy(my_ifr.ifr_name, name, sizeof(my_ifr.ifr_name)); my_ifr.ifr_flags = flags & 0xffff; my_ifr.ifr_flagshigh = flags >> 16; if (ioctl(s, SIOCSIFFLAGS, (caddr_t)&my_ifr) < 0) @@ -1265,7 +1338,7 @@ unsetifdescr(const char *val, int value, int s, const struct afswtch *afp) "\020\1RXCSUM\2TXCSUM\3NETCONS\4VLAN_MTU\5VLAN_HWTAGGING\6JUMBO_MTU\7POLLING" \ "\10VLAN_HWCSUM\11TSO4\12TSO6\13LRO\14WOL_UCAST\15WOL_MCAST\16WOL_MAGIC" \ "\17TOE4\20TOE6\21VLAN_HWFILTER\23VLAN_HWTSO\24LINKSTATE\25NETMAP" \ -"\26RXCSUM_IPV6\27TXCSUM_IPV6\31TXRTLMT\32HWRXTSTMP" +"\26RXCSUM_IPV6\27TXCSUM_IPV6\31TXRTLMT\32HWRXTSTMP\33NOMAP\34TXTLS4\35TXTLS6" /* * Print the status of the interface. If an address family was @@ -1451,7 +1524,7 @@ print_vhid(const struct ifaddrs *ifa, const char *s) if (ifd->ifi_vhid == 0) return; - printf("vhid %d ", ifd->ifi_vhid); + printf(" vhid %d", ifd->ifi_vhid); } void @@ -1460,9 +1533,11 @@ ifmaybeload(const char *name) #ifndef __rtems__ #define MOD_PREFIX_LEN 3 /* "if_" */ struct module_stat mstat; - int fileid, modid; + int i, fileid, modid; char ifkind[IFNAMSIZ + MOD_PREFIX_LEN], ifname[IFNAMSIZ], *dp; const char *cp; + struct module_map_entry *mme; + bool found; /* loading suppressed by the user */ if (noload) @@ -1476,9 +1551,24 @@ ifmaybeload(const char *name) break; } - /* turn interface and unit into module name */ - strlcpy(ifkind, "if_", sizeof(ifkind)); - strlcat(ifkind, ifname, sizeof(ifkind)); + /* Either derive it from the map or guess otherwise */ + *ifkind = '\0'; + found = false; + for (i = 0; i < nitems(module_map); ++i) { + mme = &module_map[i]; + if (strcmp(mme->ifname, ifname) == 0) { + strlcpy(ifkind, mme->kldname, sizeof(ifkind)); + found = true; + break; + } + } + + /* We didn't have an alias for it... we'll guess. */ + if (!found) { + /* turn interface and unit into module name */ + strlcpy(ifkind, "if_", sizeof(ifkind)); + strlcat(ifkind, ifname, sizeof(ifkind)); + } /* scan files in kernel */ mstat.version = sizeof(struct module_stat); @@ -1494,8 +1584,12 @@ ifmaybeload(const char *name) } else { cp = mstat.name; } - /* already loaded? */ - if (strcmp(ifname, cp) == 0 || + /* + * Is it already loaded? Don't compare with ifname if + * we were specifically told which kld to use. Doing + * so could lead to conflicts not trivially solved. + */ + if ((!found && strcmp(ifname, cp) == 0) || strcmp(ifkind, cp) == 0) return; } @@ -1550,6 +1644,8 @@ static struct cmd basic_cmds[] = { DEF_CMD("-link2", -IFF_LINK2, setifflags), DEF_CMD("monitor", IFF_MONITOR, setifflags), DEF_CMD("-monitor", -IFF_MONITOR, setifflags), + DEF_CMD("nomap", IFCAP_NOMAP, setifcap), + DEF_CMD("-nomap", -IFCAP_NOMAP, setifcap), DEF_CMD("staticarp", IFF_STATICARP, setifflags), DEF_CMD("-staticarp", -IFF_STATICARP, setifflags), DEF_CMD("rxcsum6", IFCAP_RXCSUM_IPV6, setifcap), @@ -1576,6 +1672,8 @@ static struct cmd basic_cmds[] = { DEF_CMD("-toe", -IFCAP_TOE, setifcap), DEF_CMD("lro", IFCAP_LRO, setifcap), DEF_CMD("-lro", -IFCAP_LRO, setifcap), + DEF_CMD("txtls", IFCAP_TXTLS, setifcap), + DEF_CMD("-txtls", -IFCAP_TXTLS, setifcap), DEF_CMD("wol", IFCAP_WOL, setifcap), DEF_CMD("-wol", -IFCAP_WOL, setifcap), DEF_CMD("wol_ucast", IFCAP_WOL_UCAST, setifcap), |