diff options
Diffstat (limited to 'winsup/cygwin/fhandler_procnet.cc')
| -rw-r--r-- | winsup/cygwin/fhandler_procnet.cc | 282 |
1 files changed, 0 insertions, 282 deletions
diff --git a/winsup/cygwin/fhandler_procnet.cc b/winsup/cygwin/fhandler_procnet.cc deleted file mode 100644 index 607c9d4ff..000000000 --- a/winsup/cygwin/fhandler_procnet.cc +++ /dev/null @@ -1,282 +0,0 @@ -/* fhandler_procnet.cc: fhandler for /proc/net virtual filesystem - - Copyright 2007, 2008, 2009 Red Hat, Inc. - -This file is part of Cygwin. - -This software is a copyrighted work licensed under the terms of the -Cygwin license. Please consult the file "CYGWIN_LICENSE" for -details. */ - -#define __INSIDE_CYGWIN_NET__ - -#include "winsup.h" -#include "cygerrno.h" -#include "security.h" -#include "path.h" -#include "fhandler.h" -#include "fhandler_virtual.h" -#include "dtable.h" -#include "cygheap.h" - -#include <netdb.h> -#define USE_SYS_TYPES_FD_SET -#include <winsock2.h> -#include <iphlpapi.h> -#include <asm/byteorder.h> -#include <cygwin/in6.h> - -#define _COMPILING_NEWLIB -#include <dirent.h> -#include <stdio.h> -#include <stdlib.h> - -extern "C" int ip_addr_prefix (PIP_ADAPTER_UNICAST_ADDRESS pua, - PIP_ADAPTER_PREFIX pap); -bool get_adapters_addresses (PIP_ADAPTER_ADDRESSES *pa0, ULONG family); - -static _off64_t format_procnet_ifinet6 (void *, char *&); - -static const virt_tab_t procnet_tab[] = -{ - { _VN ("."), FH_PROCNET, virt_directory, NULL }, - { _VN (".."), FH_PROCNET, virt_directory, NULL }, - { _VN ("if_inet6"), FH_PROCNET, virt_file, format_procnet_ifinet6 }, - { NULL, 0, 0, virt_none, NULL } -}; - -static const int PROCNET_LINK_COUNT = - (sizeof (procnet_tab) / sizeof (virt_tab_t)) - 1; - -/* Returns 0 if path doesn't exist, >0 if path is a directory, - * -1 if path is a file, -2 if path is a symlink, -3 if path is a pipe, - * -4 if path is a socket. - */ -virtual_ftype_t -fhandler_procnet::exists () -{ - const char *path = get_name (); - debug_printf ("exists (%s)", path); - path += proc_len + 1; - while (*path != 0 && !isdirsep (*path)) - path++; - if (*path == 0) - return virt_rootdir; - - virt_tab_t *entry = virt_tab_search (path + 1, false, procnet_tab, - PROCNET_LINK_COUNT); - if (entry) - { - if (entry->type == virt_file) - { - if (!wincap.has_gaa_prefixes () - || !get_adapters_addresses (NULL, AF_INET6)) - return virt_none; - } - fileid = entry - procnet_tab; - return entry->type; - } - return virt_none; -} - -fhandler_procnet::fhandler_procnet (): - fhandler_proc () -{ -} - -int -fhandler_procnet::fstat (struct __stat64 *buf) -{ - fhandler_base::fstat (buf); - buf->st_mode &= ~_IFMT & NO_W; - int file_type = exists (); - switch (file_type) - { - case virt_none: - set_errno (ENOENT); - return -1; - case virt_directory: - case virt_rootdir: - buf->st_mode |= S_IFDIR | S_IXUSR | S_IXGRP | S_IXOTH; - buf->st_nlink = 2; - return 0; - case virt_file: - default: - buf->st_mode |= S_IFREG | S_IRUSR | S_IRGRP | S_IROTH; - return 0; - } -} - -int -fhandler_procnet::readdir (DIR *dir, dirent *de) -{ - int res = ENMFILE; - if (dir->__d_position >= PROCNET_LINK_COUNT) - goto out; - if (procnet_tab[dir->__d_position].type == virt_file) - { - if (!wincap.has_gaa_prefixes () - || !get_adapters_addresses (NULL, AF_INET6)) - goto out; - } - strcpy (de->d_name, procnet_tab[dir->__d_position++].name); - dir->__flags |= dirent_saw_dot | dirent_saw_dot_dot; - res = 0; -out: - syscall_printf ("%d = readdir (%p, %p) (%s)", res, dir, de, de->d_name); - return res; -} - -int -fhandler_procnet::open (int flags, mode_t mode) -{ - int res = fhandler_virtual::open (flags, mode); - if (!res) - goto out; - - nohandle (true); - - const char *path; - path = get_name () + proc_len + 1; - while (*path != 0 && !isdirsep (*path)) - path++; - - if (*path == 0) - { - if ((flags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL)) - { - set_errno (EEXIST); - res = 0; - goto out; - } - else if (flags & O_WRONLY) - { - set_errno (EISDIR); - res = 0; - goto out; - } - else - { - flags |= O_DIROPEN; - goto success; - } - } - - virt_tab_t *entry; - entry = virt_tab_search (path + 1, true, procnet_tab, PROCNET_LINK_COUNT); - if (!entry) - { - set_errno ((flags & O_CREAT) ? EROFS : ENOENT); - res = 0; - goto out; - } - if (flags & O_WRONLY) - { - set_errno (EROFS); - res = 0; - goto out; - } - - fileid = entry - procnet_tab; - if (!fill_filebuf ()) - { - res = 0; - goto out; - } - - if (flags & O_APPEND) - position = filesize; - else - position = 0; - -success: - res = 1; - set_flags ((flags & ~O_TEXT) | O_BINARY); - set_open_status (); -out: - syscall_printf ("%d = fhandler_proc::open (%p, %d)", res, flags, mode); - return res; -} - -bool -fhandler_procnet::fill_filebuf () -{ - if (procnet_tab[fileid].format_func) - { - filesize = procnet_tab[fileid].format_func (NULL, filebuf); - return true; - } - return false; -} - -/* Return the same scope values as Linux. */ -static unsigned int -get_scope (struct in6_addr *addr) -{ - if (IN6_IS_ADDR_LOOPBACK (addr)) - return 0x10; - if (IN6_IS_ADDR_LINKLOCAL (addr)) - return 0x20; - if (IN6_IS_ADDR_SITELOCAL (addr)) - return 0x40; - if (IN6_IS_ADDR_V4COMPAT (addr)) - return 0x80; - return 0x0; -} - -/* Convert DAD state into Linux compatible values. */ -static unsigned int dad_to_flags[] = -{ - 0x02, /* Invalid -> NODAD */ - 0x40, /* Tentative -> TENTATIVE */ - 0xc0, /* Duplicate -> PERMANENT | TENTATIVE */ - 0x20, /* Deprecated -> DEPRECATED */ - 0x80 /* Preferred -> PERMANENT */ -}; - -static _off64_t -format_procnet_ifinet6 (void *, char *&filebuf) -{ - PIP_ADAPTER_ADDRESSES pa0 = NULL, pap; - PIP_ADAPTER_UNICAST_ADDRESS pua; - ULONG alloclen; - - if (!wincap.has_gaa_prefixes ()) - return 0; - _off64_t filesize = 0; - if (!get_adapters_addresses (&pa0, AF_INET6)) - goto out; - alloclen = 0; - for (pap = pa0; pap; pap = pap->Next) - for (pua = pap->FirstUnicastAddress; pua; pua = pua->Next) - alloclen += 100; - if (!alloclen) - goto out; - filebuf = (char *) crealloc (filebuf, alloclen); - if (!filebuf) - goto out; - for (pap = pa0; pap; pap = pap->Next) - for (pua = pap->FirstUnicastAddress; pua; pua = pua->Next) - { - struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) - pua->Address.lpSockaddr; - for (int i = 0; i < 8; ++i) - /* __small_sprintf generates upper-case hex. */ - filesize += sprintf (filebuf + filesize, "%04x", - ntohs (sin6->sin6_addr.s6_addr16[i])); - filebuf[filesize++] = ' '; - filesize += sprintf (filebuf + filesize, - "%02lx %02x %02x %02x %s\n", - pap->Ipv6IfIndex, - ip_addr_prefix (pua, pap->FirstPrefix), - get_scope (&((struct sockaddr_in6 *) - pua->Address.lpSockaddr)->sin6_addr), - dad_to_flags [pua->DadState], - pap->AdapterName); - } - -out: - if (pa0) - free (pa0); - return filesize; -} |