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authorRoland McGrath <roland@gnu.org>2000-03-24 20:59:00 +0000
committerRoland McGrath <roland@gnu.org>2000-03-24 20:59:00 +0000
commit4f173e2c8a9ee8d5cb64d56a4bad391168d78a2b (patch)
tree72b8969fa036cc15ad3b3d4c9571ce63665fbfc9 /sysdeps/mach/hurd
parentacdacef901d20f6693ae8beb4169b9dbf0a46e81 (diff)
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* sysdeps/mach/hurd/if_index.c: New file.
* sysdeps/unix/sysv/linux/net/if.h: Moved to ... * sysdeps/gnu/net/if.h: here. (_IOT_ifconf, _IOT_ifreq): Hurd ioctl type macros moved from ... * sysdeps/mach/hurd/net/if.h: ... here; this file now removed. * sysdeps/generic/net/if.h: New file. Declares just the standard functions and `struct if_nameindex' type. * socket/Makefile (headers): Add net/if.h here. * sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Not here. * sysdeps/mach/hurd/Dist: Remove it here. * sysdeps/unix/sysv/linux/Dist: And here. * sysdeps/generic/if_index.c: Include <net/if.h>.
Diffstat (limited to 'sysdeps/mach/hurd')
-rw-r--r--sysdeps/mach/hurd/Dist1
-rw-r--r--sysdeps/mach/hurd/if_index.c166
-rw-r--r--sysdeps/mach/hurd/net/if.h169
3 files changed, 166 insertions, 170 deletions
diff --git a/sysdeps/mach/hurd/Dist b/sysdeps/mach/hurd/Dist
index 71729fd49e..6f9abb25ac 100644
--- a/sysdeps/mach/hurd/Dist
+++ b/sysdeps/mach/hurd/Dist
@@ -7,7 +7,6 @@ libc-ldscript
libc_p-ldscript
bits/libc-tsd.h
net/ethernet.h
-net/if.h
net/if_arp.h
net/if_ether.h
net/if_ppp.h
diff --git a/sysdeps/mach/hurd/if_index.c b/sysdeps/mach/hurd/if_index.c
new file mode 100644
index 0000000000..e8ee999899
--- /dev/null
+++ b/sysdeps/mach/hurd/if_index.c
@@ -0,0 +1,166 @@
+/* Find network interface names and index numbers. Hurd version.
+ Copyright (C) 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <net/if.h>
+#include <hurd.h>
+#include <hurd/fsys.h>
+#include <string.h>
+#include <sys/mman.h>
+
+static int
+map_interfaces (int domain,
+ unsigned int *idxp,
+ int (*counted_initializer) (unsigned int count,
+ size_t nameslen),
+ int (*iterator) (const char *))
+{
+ static const char ifopt[] = "--interface=";
+ file_t server;
+ char optsbuf[512], *opts = optsbuf, *p;
+ size_t optslen = sizeof optsbuf;
+ error_t err;
+
+ /* Find the socket server for DOMAIN. */
+ server = _hurd_socket_server (domain, 0);
+ if (server == MACH_PORT_NULL)
+ return 0;
+
+ err = __file_get_fs_options (server, &opts, &optslen);
+ if (err == MACH_SEND_INVALID_DEST || err == MIG_SERVER_DIED)
+ {
+ /* On the first use of the socket server during the operation,
+ allow for the old server port dying. */
+ server = _hurd_socket_server (domain, 1);
+ if (server == MACH_PORT_NULL)
+ return -1;
+ err = __file_get_fs_options (server, &opts, &optslen);
+ }
+ if (err)
+ return __hurd_fail (err), 0;
+
+ if (counted_initializer)
+ {
+ unsigned int count = 0;
+ size_t nameslen = 0;
+ p = memchr (opts, '\0', optslen);
+ while (p != 0)
+ {
+ char *end = memchr (p + 1, '\0', optslen - (p - opts));
+ if (end == 0)
+ break;
+ if (optslen - (p - opts) >= sizeof ifopt
+ && !memcmp (p + 1, ifopt, sizeof ifopt - 1))
+ {
+ size_t len = end + 1 - (p + sizeof ifopt);
+ nameslen += len > IFNAMSIZ+1 ? IFNAMSIZ+1 : len;
+ ++count;
+ }
+ p = end;
+ }
+
+ if ((*counted_initializer) (count, nameslen))
+ return 0;
+ }
+
+ *idxp = 0;
+ for (p = memchr (opts, '\0', optslen); p != 0;
+ p = memchr (p + 1, '\0', optslen - (p - opts)))
+ {
+ ++*idxp;
+ if (optslen - (p - opts) >= sizeof ifopt
+ && !memcmp (p + 1, ifopt, sizeof ifopt - 1)
+ && (*iterator) (p + sizeof ifopt))
+ break;
+ }
+
+ if (opts != optsbuf)
+ __munmap (opts, optslen);
+
+ return 1;
+}
+
+unsigned int
+if_nametoindex (const char *ifname)
+{
+ unsigned int idx;
+ int find_name (const char *name)
+ {
+ return !strcmp (name, ifname);
+ }
+ return map_interfaces (PF_INET, &idx, 0, &find_name) ? idx : 0;
+}
+
+char *
+if_indextoname (unsigned int ifindex, char *ifname)
+{
+ unsigned int idx;
+ int find_idx (const char *name)
+ {
+ if (idx == ifindex)
+ {
+ strncpy (ifname, name, IFNAMSIZ);
+ return 1;
+ }
+ return 0;
+ }
+ return map_interfaces (PF_INET, &idx, 0, &find_idx) ? ifname : NULL;
+}
+
+
+struct if_nameindex *
+if_nameindex (void)
+{
+ unsigned int idx;
+ struct if_nameindex *buf;
+ char *namep;
+ int alloc (unsigned int count, size_t nameslen)
+ {
+ buf = malloc ((sizeof buf[0] * (count + 1)) + nameslen);
+ if (buf == 0)
+ return 1;
+ buf[count].if_index = 0;
+ buf[count].if_name = NULL;
+ namep = (char *) &buf[count + 1];
+ return 0;
+ }
+ int fill (const char *name)
+ {
+ buf[idx - 1].if_index = idx;
+ buf[idx - 1].if_name = namep;
+ namep = __memccpy (namep, name, '\0', IFNAMSIZ+1) ?: &namep[IFNAMSIZ+1];
+ return 0;
+ }
+
+ return map_interfaces (PF_INET, &idx, &alloc, &fill) ? buf : NULL;
+}
+
+void
+if_freenameindex (struct if_nameindex *ifn)
+{
+ free (ifn);
+}
+
+
+void
+internal_function
+__protocol_available (int *have_inet, int *have_inet6)
+{
+ *have_inet = _hurd_socket_server (PF_INET, 0) != MACH_PORT_NULL;
+ *have_inet6 = _hurd_socket_server (PF_INET6, 0) != MACH_PORT_NULL;
+}
diff --git a/sysdeps/mach/hurd/net/if.h b/sysdeps/mach/hurd/net/if.h
deleted file mode 100644
index 3c0f6665ad..0000000000
--- a/sysdeps/mach/hurd/net/if.h
+++ /dev/null
@@ -1,169 +0,0 @@
-/* Copyright (C) 1997 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#ifndef _NET_IF_H
-
-#define _NET_IF_H 1
-#include <features.h>
-
-#include <sys/types.h>
-#include <sys/socket.h>
-
-/* Standard interface flags. */
-enum
- {
- IFF_UP = 0x1, /* Interface is up. */
- IFF_BROADCAST = 0x2, /* Broadcast address valid. */
- IFF_DEBUG = 0x4, /* Turn on debugging. */
- IFF_LOOPBACK = 0x8, /* Is a loopback net. */
- IFF_POINTOPOINT = 0x10, /* Interface is point-to-point link. */
- IFF_NOTRAILERS = 0x20, /* Avoid use of trailers. */
- IFF_RUNNING = 0x40, /* Resources allocated. */
- IFF_NOARP = 0x80, /* No address resolution protocol. */
- IFF_PROMISC = 0x100, /* Receive all packets. */
- /* Not supported */
- IFF_ALLMULTI = 0x200, /* Receive all multicast packets. */
-
- IFF_MASTER = 0x400, /* Master of a load balancer. */
- IFF_SLAVE = 0x800, /* Slave of a load balancer. */
-
- IFF_MULTICAST = 0x1000 /* Supports multicast. */
- };
-
-/* The ifaddr structure contains information about one address of an
- interface. They are maintained by the different address families,
- are allocated and attached when an address is set, and are linked
- together so all addresses for an interface can be located. */
-
-struct ifaddr
- {
- struct sockaddr ifa_addr; /* Address of interface. */
- union
- {
- struct sockaddr ifu_broadaddr;
- struct sockaddr ifu_dstaddr;
- } ifa_ifu;
- struct iface *ifa_ifp; /* Back-pointer to interface. */
- struct ifaddr *ifa_next; /* Next address for interface. */
- };
-
-#define ifa_broadaddr ifa_ifu.ifu_broadaddr /* broadcast address */
-#define ifa_dstaddr ifa_ifu.ifu_dstaddr /* other end of link */
-
-/* Device mapping structure. I'd just gone off and designed a
- beautiful scheme using only loadable modules with arguments for
- driver options and along come the PCMCIA people 8)
-
- Ah well. The get() side of this is good for WDSETUP, and it'll be
- handy for debugging things. The set side is fine for now and being
- very small might be worth keeping for clean configuration. */
-
-struct ifmap
- {
- unsigned long int mem_start;
- unsigned long int mem_end;
- unsigned short int base_addr;
- unsigned char irq;
- unsigned char dma;
- unsigned char port;
- /* 3 bytes spare */
- };
-
-/* Interface request structure used for socket ioctl's. All interface
- ioctl's must have parameter definitions which begin with ifr_name.
- The remainder may be interface specific. */
-struct ifreq
- {
-#define IFHWADDRLEN 6
-#define IFNAMSIZ 16
- union
- {
- char ifrn_name[IFNAMSIZ]; /* Interface name, e.g. "en0". */
- } ifr_ifrn;
-
- union
- {
- struct sockaddr ifru_addr;
- struct sockaddr ifru_dstaddr;
- struct sockaddr ifru_broadaddr;
- struct sockaddr ifru_netmask;
- struct sockaddr ifru_hwaddr;
- short int ifru_flags;
- int ifru_ivalue;
- int ifru_mtu;
- struct ifmap ifru_map;
- char ifru_slave[IFNAMSIZ]; /* Just fits the size */
- __caddr_t ifru_data;
- } ifr_ifru;
- };
-
-#define ifr_name ifr_ifrn.ifrn_name /* interface name */
-#define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */
-#define ifr_addr ifr_ifru.ifru_addr /* address */
-#define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-p lnk */
-#define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */
-#define ifr_netmask ifr_ifru.ifru_netmask /* interface net mask */
-#define ifr_flags ifr_ifru.ifru_flags /* flags */
-#define ifr_metric ifr_ifru.ifru_ivalue /* metric */
-#define ifr_mtu ifr_ifru.ifru_mtu /* mtu */
-#define ifr_map ifr_ifru.ifru_map /* device map */
-#define ifr_slave ifr_ifru.ifru_slave /* slave device */
-#define ifr_data ifr_ifru.ifru_data /* for use by interface */
-#define ifr_ifindex ifr_ifru..ifru_ivalue /* interface index */
-
-#define _IOT_ifreq \
-_IOT(_IOTS(struct ifreq),1,0,0,0,0)
-
-/* Structure used in SIOCGIFCONF request. Used to retrieve interface
- configuration for machine (useful for programs which must know all
- networks accessible). */
-
-struct ifconf
- {
- int ifc_len; /* Size of buffer. */
- union
- {
- __caddr_t ifcu_buf;
- struct ifreq *ifcu_req;
- } ifc_ifcu;
- };
-#define ifc_buf ifc_ifcu.ifcu_buf /* Buffer address. */
-#define ifc_req ifc_ifcu.ifcu_req /* Array of structures. */
-#define _IOT_ifconf \
-_IOT(_IOTS(struct ifconf),1,0,0,0,0)
-
-
-/* Convert an interface name to an index, and vice versa. */
-
-unsigned int if_nametoindex(const char *ifname);
-char *if_indextoname(unsigned int ifindex, char *ifname);
-
-/* Return a list of all interfaces and their indices. */
-
-struct if_nameindex {
- unsigned int if_index; /* 1, 2, ... */
- char *if_name; /* null terminated name: "eth0", .... */
-};
-
-struct if_nameindex *if_nameindex(void);
-
-/* Free the data returned from if_nameindex. */
-
-void if_freenameindex(struct if_nameindex *ptr);
-
-#endif /* net/if.h */