650 lines
13 KiB
C
650 lines
13 KiB
C
/*
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Copyright (c) 2016-2020 Chung, Hyung-Hwan. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <hio-nwif.h>
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#include "hio-prv.h"
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#if defined(_WIN32)
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/* TODO: */
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#elif defined(__OS2__)
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/* TODO: */
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#elif defined(__DOS__)
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/* TODO: */
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#else
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# include <unistd.h>
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# include <errno.h>
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# include <sys/socket.h>
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# if defined(HAVE_SYS_IOCTL_H)
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# include <sys/ioctl.h>
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# endif
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# if defined(HAVE_NET_IF_H)
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# include <net/if.h>
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# endif
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# if defined(HAVE_SYS_SOCKIO_H)
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# include <sys/sockio.h>
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# endif
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# if !defined(IF_NAMESIZE)
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# define IF_NAMESIZE 63
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# endif
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#endif
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#if defined(SIOCGIFCONF) && (defined(SIOCGIFANUM) || defined(SIOCGIFNUM))
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static int get_sco_ifconf (hio_t* hio, struct ifconf* ifc)
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{
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/* SCO doesn't have have any IFINDEX thing.
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* i emultate it using IFCONF */
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int h, num;
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struct ifreq* ifr;
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h = socket(AF_INET, SOCK_DGRAM, 0);
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if (h <= -1)
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{
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hio_seterrwithsyserr (hio, 0, errno);
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return -1;
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}
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ifc->ifc_len = 0;
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ifc->ifc_buf = HIO_NULL;
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#if defined(SIOCGIFANUM)
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if (ioctl(h, SIOCGIFANUM, &num) <= -1)
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{
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hio_seterrwithsyserr (hio, 0, errno);
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goto oops;
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}
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#else
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if (ioctl(h, SIOCGIFNUM, &num) <= -1)
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{
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hio_seterrwithsyserr (hio, 0, errno);
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goto oops;
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}
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#endif
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/* sco needs reboot when you add an network interface.
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* it should be safe not to consider the case when the interface
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* is added after SIOCGIFANUM above.
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* another thing to note is that SIOCGIFCONF ends with segfault
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* if the buffer is not large enough unlike some other OSes
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* like opensolaris which truncates the configuration. */
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ifc->ifc_len = num * HIO_SIZEOF(*ifr);
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ifc->ifc_buf = hio_allocmem(hio, ifc->ifc_len);
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if (ifc->ifc_buf == HIO_NULL) goto oops;
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if (ioctl(h, SIOCGIFCONF, ifc) <= -1)
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{
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hio_seterrwithsyserr (hio, 0, errno);
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goto oops;
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}
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close (h); h = -1;
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return 0;
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oops:
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if (ifc->ifc_buf) hio_freemem (hio, ifc->ifc_buf);
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if (h >= 0) close (h);
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return -1;
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}
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static HIO_INLINE void free_sco_ifconf (hio_t* hio, struct ifconf* ifc)
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{
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hio_freemem (hio, ifc->ifc_buf);
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}
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#endif
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int hio_bcstrtoifindex (hio_t* hio, const hio_bch_t* ptr, unsigned int* index)
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{
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#if defined(_WIN32)
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/* TODO: */
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hio_seterrnum (hio, HIO_ENOIMPL);
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return -1;
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#elif defined(__OS2__)
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/* TODO: */
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hio_seterrnum (hio, HIO_ENOIMPL);
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return -1;
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#elif defined(__DOS__)
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/* TODO: */
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hio_seterrnum (hio, HIO_ENOIMPL);
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return -1;
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#elif defined(SIOCGIFINDEX)
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int h, x;
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hio_oow_t len;
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struct ifreq ifr;
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h = socket(AF_INET, SOCK_DGRAM, 0);
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if (h <= -1)
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{
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hio_seterrwithsyserr (hio, 0, errno);
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return -1;
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}
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HIO_MEMSET (&ifr, 0, HIO_SIZEOF(ifr));
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len = hio_copy_bcstr(ifr.ifr_name, HIO_COUNTOF(ifr.ifr_name), ptr);
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if (ptr[len] != '\0') return -1; /* name too long */
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x = ioctl(h, SIOCGIFINDEX, &ifr);
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close (h);
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if (x >= 0)
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{
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#if defined(HAVE_STRUCT_IFREQ_IFR_IFINDEX)
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*index = ifr.ifr_ifindex;
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#else
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*index = ifr.ifr_index;
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#endif
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}
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return x;
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#elif defined(HAVE_IF_NAMETOINDEX)
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hio_bch_t tmp[IF_NAMESIZE + 1];
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hio_oow_t len;
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unsigned int tmpidx;
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len = hio_copy_bcstr(tmp, HIO_COUNTOF(tmp), ptr);
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if (ptr[len] != '\0') return -1; /* name too long */
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tmpidx = if_nametoindex(tmp);
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if (tmpidx == 0)
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{
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hio_seterrwithsyserr (hio, 0, errno);
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return -1;
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}
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*index = tmpidx;
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return 0;
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#elif defined(SIOCGIFCONF) && (defined(SIOCGIFANUM) || defined(SIOCGIFNUM))
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struct ifconf ifc;
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int num, i;
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if (get_sco_ifconf(hio, &ifc) <= -1) return -1;
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num = ifc.ifc_len / HIO_SIZEOF(struct ifreq);
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for (i = 0; i < num; i++)
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{
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if (hio_comp_bcstr(ptr, ifc.ifc_req[i].ifr_name, 0) == 0)
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{
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free_sco_ifconf (hio, &ifc);
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*index = i + 1;
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return 0;
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}
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}
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free_sco_ifconf (hio, &ifc);
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return -1;
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#else
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return -1;
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#endif
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}
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int hio_bcharstoifindex (hio_t* hio, const hio_bch_t* ptr, hio_oow_t len, unsigned int* index)
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{
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#if defined(_WIN32)
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/* TODO: */
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hio_seterrnum (hio, HIO_ENOIMPL);
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return -1;
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#elif defined(__OS2__)
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/* TODO: */
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hio_seterrnum (hio, HIO_ENOIMPL);
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return -1;
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#elif defined(__DOS__)
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/* TODO: */
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hio_seterrnum (hio, HIO_ENOIMPL);
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return -1;
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#elif defined(SIOCGIFINDEX)
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int h, x;
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struct ifreq ifr;
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h = socket(AF_INET, SOCK_DGRAM, 0);
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if (h <= -1)
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{
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hio_seterrwithsyserr (hio, 0, errno);
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return -1;
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}
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HIO_MEMSET (&ifr, 0, HIO_SIZEOF(ifr));
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if (hio_copy_bchars_to_bcstr(ifr.ifr_name, HIO_COUNTOF(ifr.ifr_name), ptr, len) < len) return -1; /* name too long */
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x = ioctl(h, SIOCGIFINDEX, &ifr);
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close (h);
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if (x >= 0)
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{
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#if defined(HAVE_STRUCT_IFREQ_IFR_IFINDEX)
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*index = ifr.ifr_ifindex;
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#else
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*index = ifr.ifr_index;
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#endif
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}
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return x;
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#elif defined(HAVE_IF_NAMETOINDEX)
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hio_bch_t tmp[IF_NAMESIZE + 1];
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unsigned int tmpidx;
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if (hio_copy_bchars_to_bcstr(tmp, HIO_COUNTOF(tmp), ptr, len) < len) return -1;
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tmpidx = if_nametoindex(tmp);
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if (tmpidx == 0)
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{
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hio_seterrwithsyserr (hio, 0, errno);
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return -1;
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}
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*index = tmpidx;
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return 0;
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#elif defined(SIOCGIFCONF) && (defined(SIOCGIFANUM) || defined(SIOCGIFNUM))
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struct ifconf ifc;
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int num, i;
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if (get_sco_ifconf(hio, &ifc) <= -1) return -1;
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num = ifc.ifc_len / HIO_SIZEOF(struct ifreq);
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for (i = 0; i < num; i++)
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{
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if (hio_comp_bchars_bcstr(ptr, len, ifc.ifc_req[i].ifr_name) == 0)
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{
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free_sco_ifconf (hio, &ifc);
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*index = i + 1;
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return 0;
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}
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}
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free_sco_ifconf (hio, &ifc);
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return -1;
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#else
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return -1;
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#endif
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}
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int hio_ucstrtoifindex (hio_t* hio, const hio_uch_t* ptr, unsigned int* index)
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{
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#if defined(_WIN32)
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/* TODO: */
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hio_seterrnum (hio, HIO_ENOIMPL);
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return -1;
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#elif defined(__OS2__)
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/* TODO: */
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hio_seterrnum (hio, HIO_ENOIMPL);
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return -1;
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#elif defined(__DOS__)
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/* TODO: */
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hio_seterrnum (hio, HIO_ENOIMPL);
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return -1;
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#elif defined(SIOCGIFINDEX)
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int h, x;
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struct ifreq ifr;
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hio_oow_t wl, ml;
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h = socket(AF_INET, SOCK_DGRAM, 0);
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if (h <= -1)
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{
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hio_seterrwithsyserr (hio, 0, errno);
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return -1;
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}
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ml = HIO_COUNTOF(ifr.ifr_name);
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if (hio_convutobcstr(hio, ptr, &wl, ifr.ifr_name, &ml) <= -1) return -1;
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x = ioctl(h, SIOCGIFINDEX, &ifr);
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close (h);
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if (x >= 0)
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{
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#if defined(HAVE_STRUCT_IFREQ_IFR_IFINDEX)
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*index = ifr.ifr_ifindex;
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#else
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*index = ifr.ifr_index;
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#endif
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}
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return x;
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#elif defined(HAVE_IF_NAMETOINDEX)
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hio_bch_t tmp[IF_NAMESIZE + 1];
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hio_oow_t wl, ml;
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unsigned int tmpidx;
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ml = HIO_COUNTOF(tmp);
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if (hio_convutobcstr(hio, ptr, &wl, tmp, &ml) <= -1) return -1;
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tmpidx = if_nametoindex(tmp);
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if (tmpidx == 0)
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{
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hio_seterrwithsyserr (hio, 0, errno);
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return -1;
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}
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*index = tmpidx;
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return 0;
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#elif defined(SIOCGIFCONF) && (defined(SIOCGIFANUM) || defined(SIOCGIFNUM))
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struct ifconf ifc;
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int num, i;
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hio_bch_t tmp[IF_NAMESIZE + 1];
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hio_oow_t wl, ml;
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ml = HIO_COUNTOF(tmp);
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if (hio_convutobcstr(hio, ptr, &wl, tmp, &ml) <= -1) return -1;
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if (get_sco_ifconf(hio, &ifc) <= -1) return -1;
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num = ifc.ifc_len / HIO_SIZEOF(struct ifreq);
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for (i = 0; i < num; i++)
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{
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if (hio_comp_bcstr(tmp, ifc.ifc_req[i].ifr_name, 0) == 0)
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{
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free_sco_ifconf (hio, &ifc);
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*index = i + 1;
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return 0;
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}
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}
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free_sco_ifconf (hio, &ifc);
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return -1;
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#else
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return -1;
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#endif
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}
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int hio_ucharstoifindex (hio_t* hio, const hio_uch_t* ptr, hio_oow_t len, unsigned int* index)
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{
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#if defined(_WIN32)
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/* TODO: */
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hio_seterrnum (hio, HIO_ENOIMPL);
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return -1;
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#elif defined(__OS2__)
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/* TODO: */
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hio_seterrnum (hio, HIO_ENOIMPL);
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return -1;
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#elif defined(__DOS__)
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/* TODO: */
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hio_seterrnum (hio, HIO_ENOIMPL);
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return -1;
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#elif defined(SIOCGIFINDEX)
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int h, x;
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struct ifreq ifr;
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hio_oow_t wl, ml;
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h = socket(AF_INET, SOCK_DGRAM, 0);
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if (h <= -1)
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{
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hio_seterrwithsyserr (hio, 0, errno);
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return -1;
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}
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wl = len; ml = HIO_COUNTOF(ifr.ifr_name) - 1;
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if (hio_convutobchars(hio, ptr, &wl, ifr.ifr_name, &ml) <= -1) return -1;
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ifr.ifr_name[ml] = '\0';
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x = ioctl(h, SIOCGIFINDEX, &ifr);
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close (h);
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if (x >= 0)
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{
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#if defined(HAVE_STRUCT_IFREQ_IFR_IFINDEX)
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*index = ifr.ifr_ifindex;
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#else
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*index = ifr.ifr_index;
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#endif
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}
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return x;
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#elif defined(HAVE_IF_NAMETOINDEX)
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hio_bch_t tmp[IF_NAMESIZE + 1];
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hio_oow_t wl, ml;
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unsigned int tmpidx;
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wl = len; ml = HIO_COUNTOF(tmp) - 1;
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if (hio_convutobchars(hio, ptr, &wl, tmp, &ml) <= -1) return -1;
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tmp[ml] = '\0';
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tmpidx = if_nametoindex(tmp);
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if (tmpidx == 0)
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{
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hio_seterrwithsyserr (hio, 0, errno);
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return -1;
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}
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*index = tmpidx;
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return 0;
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#elif defined(SIOCGIFCONF) && (defined(SIOCGIFANUM) || defined(SIOCGIFNUM))
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struct ifconf ifc;
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int num, i;
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hio_bch_t tmp[IF_NAMESIZE + 1];
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hio_oow_t wl, ml;
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wl = len; ml = HIO_COUNTOF(tmp) - 1;
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if (hio_convutobchars(ptr, &wl, tmp, &ml) <= -1) return -1;
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tmp[ml] = '\0';
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if (get_sco_ifconf(hio, &ifc) <= -1) return -1;
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num = ifc.ifc_len / HIO_SIZEOF(struct ifreq);
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for (i = 0; i < num; i++)
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{
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if (hio_comp_bcstr(tmp, ifc.ifc_req[i].ifr_name, 0) == 0)
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{
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free_sco_ifconf (hio, &ifc);
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*index = i + 1;
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return 0;
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}
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}
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free_sco_ifconf (hio, &ifc);
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return -1;
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#else
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return -1;
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#endif
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}
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/* ---------------------------------------------------------- */
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int hio_ifindextobcstr (hio_t* hio, unsigned int index, hio_bch_t* buf, hio_oow_t len)
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{
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#if defined(_WIN32)
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/* TODO: */
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hio_seterrnum (hio, HIO_ENOIMPL);
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return -1;
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#elif defined(__OS2__)
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/* TODO: */
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hio_seterrnum (hio, HIO_ENOIMPL);
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return -1;
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#elif defined(__DOS__)
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/* TODO: */
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hio_seterrnum (hio, HIO_ENOIMPL);
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return -1;
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#elif defined(SIOCGIFNAME)
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int h, x;
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struct ifreq ifr;
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h = socket(AF_INET, SOCK_DGRAM, 0);
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if (h <= -1)
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{
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hio_seterrwithsyserr (hio, 0, errno);
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return -1;
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}
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HIO_MEMSET (&ifr, 0, HIO_SIZEOF(ifr));
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#if defined(HAVE_STRUCT_IFREQ_IFR_IFINDEX)
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ifr.ifr_ifindex = index;
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#else
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ifr.ifr_index = index;
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#endif
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x = ioctl(h, SIOCGIFNAME, &ifr);
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close (h);
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if (x <= -1)
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{
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hio_seterrwithsyserr (hio, 0, errno);
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return -1;
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}
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return hio_copy_bcstr(buf, len, ifr.ifr_name);
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#elif defined(HAVE_IF_INDEXTONAME)
|
|
hio_bch_t tmp[IF_NAMESIZE + 1];
|
|
if (if_indextoname (index, tmp) == HIO_NULL)
|
|
{
|
|
hio_seterrwithsyserr (hio, 0, errno);
|
|
return -1;
|
|
}
|
|
return hio_copy_bcstr(buf, len, tmp);
|
|
|
|
#elif defined(SIOCGIFCONF) && (defined(SIOCGIFANUM) || defined(SIOCGIFNUM))
|
|
|
|
struct ifconf ifc;
|
|
hio_oow_t ml;
|
|
int num;
|
|
|
|
if (index <= 0) return -1;
|
|
if (get_sco_ifconf(hio, &ifc) <= -1) return -1;
|
|
|
|
num = ifc.ifc_len / HIO_SIZEOF(struct ifreq);
|
|
if (index > num)
|
|
{
|
|
hio_seterrnum (hio, HIO_ENOENT);
|
|
free_sco_ifconf (hio, &ifc);
|
|
return -1;
|
|
}
|
|
|
|
ml = hio_copy_bcstr(buf, len, ifc.ifc_req[index - 1].ifr_name);
|
|
free_sco_ifconf (hio, &ifc);
|
|
return ml;
|
|
|
|
#else
|
|
return -1;
|
|
#endif
|
|
}
|
|
|
|
int hio_ifindextoucstr (hio_t* hio, unsigned int index, hio_uch_t* buf, hio_oow_t len)
|
|
{
|
|
#if defined(_WIN32)
|
|
/* TODO: */
|
|
hio_seterrnum (hio, HIO_ENOIMPL);
|
|
return -1;
|
|
#elif defined(__OS2__)
|
|
/* TODO: */
|
|
hio_seterrnum (hio, HIO_ENOIMPL);
|
|
return -1;
|
|
#elif defined(__DOS__)
|
|
/* TODO: */
|
|
hio_seterrnum (hio, HIO_ENOIMPL);
|
|
return -1;
|
|
|
|
#elif defined(SIOCGIFNAME)
|
|
|
|
int h, x;
|
|
struct ifreq ifr;
|
|
hio_oow_t wl, ml;
|
|
|
|
h = socket(AF_INET, SOCK_DGRAM, 0);
|
|
if (h <= -1)
|
|
{
|
|
hio_seterrwithsyserr (hio, 0, errno);
|
|
return -1;
|
|
}
|
|
|
|
HIO_MEMSET (&ifr, 0, HIO_SIZEOF(ifr));
|
|
#if defined(HAVE_STRUCT_IFREQ_IFR_IFINDEX)
|
|
ifr.ifr_ifindex = index;
|
|
#else
|
|
ifr.ifr_index = index;
|
|
#endif
|
|
|
|
x = ioctl(h, SIOCGIFNAME, &ifr);
|
|
close (h);
|
|
|
|
if (x <= -1)
|
|
{
|
|
hio_seterrwithsyserr (hio, 0, errno);
|
|
return -1;
|
|
}
|
|
|
|
wl = len;
|
|
x = hio_convbtoucstr(hio, ifr.ifr_name, &ml, buf, &wl, 0);
|
|
if (x == -2 && wl > 1) buf[wl - 1] = '\0';
|
|
else if (x != 0) return -1;
|
|
return wl;
|
|
|
|
#elif defined(HAVE_IF_INDEXTONAME)
|
|
hio_bch_t tmp[IF_NAMESIZE + 1];
|
|
hio_oow_t ml, wl;
|
|
int x;
|
|
|
|
if (if_indextoname(index, tmp) == HIO_NULL)
|
|
{
|
|
hio_seterrwithsyserr (hio, 0, errno);
|
|
return -1;
|
|
}
|
|
wl = len;
|
|
x = hio_convbtoucstr(hio, tmp, &ml, buf, &wl, 0);
|
|
if (x == -2 && wl > 1) buf[wl - 1] = '\0';
|
|
else if (x != 0) return -1;
|
|
return wl;
|
|
|
|
#elif defined(SIOCGIFCONF) && (defined(SIOCGIFANUM) || defined(SIOCGIFNUM))
|
|
|
|
struct ifconf ifc;
|
|
hio_oow_t wl, ml;
|
|
int num, x;
|
|
|
|
if (index <= 0) return -1;
|
|
if (get_sco_ifconf(hio, &ifc) <= -1) return -1;
|
|
|
|
num = ifc.ifc_len / HIO_SIZEOF(struct ifreq);
|
|
if (index > num)
|
|
{
|
|
free_sco_ifconf (hio, &ifc);
|
|
return -1;
|
|
}
|
|
|
|
wl = len;
|
|
x = hio_convbtoucstr(ifc.ifc_req[index - 1].ifr_name, &ml, buf, &wl, 0);
|
|
free_sco_ifconf (hio, &ifc);
|
|
|
|
if (x == -2 && wl > 1) buf[wl - 1] = '\0';
|
|
else if (x != 0) return -1;
|
|
|
|
return wl;
|
|
#else
|
|
return -1;
|
|
#endif
|
|
}
|
|
|