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qse/qse/lib/cmn/nwif-cfg.c

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/*
* $Id$
*
Copyright 2006-2012 Chung, Hyung-Hwan.
This file is part of QSE.
QSE is free software: you can redistribute it and/or modify
it uheadr the terms of the GNU Lesser General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
QSE 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with QSE. If not, see <http://www.gnu.org/licenses/>.
*/
#include <qse/cmn/nwif.h>
#include <qse/cmn/str.h>
#include <qse/cmn/mbwc.h>
#include "mem.h"
#if defined(_WIN32)
# include <winsock2.h>
# include <ws2tcpip.h>
# include <iphlpapi.h>
#elif defined(__OS2__)
# include <types.h>
# include <sys/socket.h>
# include <netinet/in.h>
# include <tcpustd.h>
# include <sys/ioctl.h>
# include <nerrno.h>
# pragma library("tcpip32.lib")
#elif defined(__DOS__)
/* TODO: */
#else
# include "syscall.h"
# include <sys/socket.h>
# include <netinet/in.h>
# if defined(HAVE_SYS_IOCTL_H)
# include <sys/ioctl.h>
# endif
# if defined(HAVE_NET_IF_H)
# include <net/if.h>
# endif
# if defined(HAVE_NET_IF_DL_H)
# include <net/if_dl.h>
# endif
# if defined(HAVE_SYS_SOCKIO_H)
# include <sys/sockio.h>
# endif
# if defined(HAVE_IFADDRS_H)
# include <ifaddrs.h>
# endif
# if defined(HAVE_SYS_SYSCTL_H)
# include <sys/sysctl.h>
# endif
# if defined(HAVE_SYS_STROPTS_H)
# include <sys/stropts.h> /* stream options */
# endif
# if defined(HAVE_SYS_MACSTAT_H)
# include <sys/macstat.h>
# endif
#endif
/*
#if defined(HAVE_NET_IF_DL_H)
# include <net/if_dl.h>
#endif
#ifndef SIOCGLIFHWADDR
#define SIOCGLIFHWADDR _IOWR('i', 192, struct lifreq)
#endif
struct lifreq lif;
memset(&lif, 0, sizeof(lif));
strlcpy(lif.lifr_name, ifname, sizeof(lif.lifr_name));
if (ioctl(sock, SIOCGLIFHWADDR, &lif) != -1) {
struct sockaddr_dl *sp;
sp = (struct sockaddr_dl *)&lif.lifr_addr;
memcpy(buf, &sp->sdl_data[0], sp->sdl_alen);
return sp->sdl_alen;
}
*/
#if defined(SIOCGLIFCONF) && defined(SIOCGLIFNUM) && \
defined(HAVE_STRUCT_LIFCONF) && defined(HAVE_STRUCT_LIFREQ)
static int get_nwifs (qse_mmgr_t* mmgr, int s, int f, qse_xptl_t* nwifs)
{
struct lifnum ifn;
struct lifconf ifc;
qse_xptl_t b;
qse_size_t ifcount;
ifcount = 0;
b.ptr = QSE_NULL;
b.len = 0;
do
{
ifn.lifn_family = f;
ifn.lifn_flags = 0;
if (ioctl (s, SIOCGLIFNUM, &ifn) <= -1) goto oops;
if (b.ptr)
{
/* b.ptr won't be QSE_NULL when retrying */
if (ifn.lifn_count <= ifcount) break;
}
/* +1 for extra space to leave empty
* if SIOCGLIFCONF returns the same number of
* intefaces as SIOCLIFNUM */
b.len = (ifn.lifn_count + 1) * QSE_SIZEOF(struct lifreq);
b.ptr = QSE_MMGR_ALLOC (mmgr, b.len);
if (b.ptr == QSE_NULL) goto oops;
ifc.lifc_family = f;
ifc.lifc_flags = 0;
ifc.lifc_len = b.len;
ifc.lifc_buf = b.ptr;
if (ioctl (s, SIOCGLIFCONF, &ifc) <= -1) goto oops;
ifcount = ifc.lifc_len / QSE_SIZEOF(struct lifreq);
}
while (ifcount > ifn.lifn_count);
/* the while condition above is for checking if
* the buffer got full. when it's full, there is a chance
* that there are more interfaces. */
nwifs->ptr = b.ptr;
nwifs->len = ifcount;
return 0;
oops:
if (b.ptr) QSE_MMGR_FREE (mmgr, b.ptr);
return -1;
}
#endif
#if 0
static void free_nwifcfg (qse_mmgr_t* mmgr, qse_nwifcfg_node_t* cfg)
{
qse_nwifcfg_node_t* cur;
while (cfg)
{
cur = cfg;
cfg = cur->next;
if (cur->name) QSE_MMGR_FREE (mmgr, cur->name);
QSE_MMGR_FREE (mmgr, cur);
}
}
int qse_getnwifcfg (qse_nwifcfg_t* cfg)
{
#if defined(SIOCGLIFCONF)
struct lifreq* ifr, ifrbuf;
qse_size_t i;
int s, f;
int s4 = -1;
int s6 = -1;
qse_xptl_t nwifs = { QSE_NULL, 0 };
qse_nwifcfg_node_t* head = QSE_NULL;
qse_nwifcfg_node_t* tmp;
QSE_ASSERT (cfg->mmgr != QSE_NULL);
#if defined(AF_INET) || defined(AF_INET6)
#if defined(AF_INET)
s4 = socket (AF_INET, SOCK_DGRAM, 0);
if (s4 <= -1) goto oops;
#endif
#if defined(AF_INET6)
s6 = socket (AF_INET6, SOCK_DGRAM, 0);
if (s6 <= -1) goto oops;
#endif
#else
/* no implementation */
goto oops;
#endif
if (get_nwifs (cfg->mmgr, s4, AF_UNSPEC, &nwifs) <= -1) goto oops;
ifr = nwifs.ptr;
for (i = 0; i < nwifs.len; i++, ifr++)
{
f = ifr->lifr_addr.ss_family;
if (f == AF_INET) s = s4;
else if (f == AF_INET6) s = s6;
else continue;
tmp = QSE_MMGR_ALLOC (cfg->mmgr, QSE_SIZEOF(*tmp));
if (tmp == QSE_NULL) goto oops;
QSE_MEMSET (tmp, 0, QSE_SIZEOF(*tmp));
tmp->next = head;
head = tmp;
#if defined(QSE_CHAR_IS_MCHAR)
head->name = qse_mbsdup (ifr->lifr_name, cfg->mmgr);
#else
head->name = qse_mbstowcsdup (ifr->lifr_name, QSE_NULL, cfg->mmgr);
#endif
if (head->name == QSE_NULL) goto oops;
qse_skadtonwad (&ifr->lifr_addr, &head->addr);
qse_mbsxcpy (ifrbuf.lifr_name, QSE_SIZEOF(ifrbuf.lifr_name), ifr->lifr_name);
if (ioctl (s, SIOCGLIFFLAGS, &ifrbuf) <= -1) goto oops;
if (ifrbuf.lifr_flags & IFF_UP) head->flags |= QSE_NWIFCFG_UP;
if (ifrbuf.lifr_flags & IFF_BROADCAST)
{
if (ioctl (s, SIOCGLIFBRDADDR, &ifrbuf) <= -1) goto oops;
qse_skadtonwad (&ifrbuf.lifr_addr, &head->bcast);
head->flags |= QSE_NWIFCFG_BCAST;
}
if (ifrbuf.lifr_flags & IFF_POINTOPOINT)
{
if (ioctl (s, SIOCGLIFDSTADDR, &ifrbuf) <= -1) goto oops;
qse_skadtonwad (&ifrbuf.lifr_addr, &head->ptop);
head->flags |= QSE_NWIFCFG_PTOP;
}
if (ioctl (s, SIOCGLIFINDEX, &ifrbuf) <= -1) goto oops;
head->index = ifrbuf.lifr_index;
if (ioctl (s, SIOCGLIFNETMASK, &ifrbuf) <= -1) goto oops;
qse_skadtonwad (&ifrbuf.lifr_addr, &head->mask);
}
QSE_MMGR_FREE (cfg->mmgr, nwifs.ptr);
close (s6);
close (s4);
cfg->list = head;
return 0;
oops:
if (head) free_nwifcfg (cfg->mmgr, head);
if (nwifs.ptr) QSE_MMGR_FREE (cfg->mmgr, nwifs.ptr);
if (s6 >= 0) close (s6);
if (s4 >= 0) close (s4);
return -1;
#else
/* TODO */
return QSE_NULL;
#endif
}
void qse_freenwifcfg (qse_nwifcfg_t* cfg)
{
free_nwifcfg (cfg->mmgr, cfg->list);
cfg->list = QSE_NULL;
}
#endif
static int get_nwifcfg (int s, qse_nwifcfg_t* cfg)
{
#if defined(SIOCGLIFADDR) && defined(SIOCGLIFINDEX) && \
defined(HAVE_STRUCT_LIFCONF) && defined(HAVE_STRUCT_LIFREQ)
/* opensolaris */
struct lifreq lifrbuf;
qse_size_t ml, wl;
QSE_MEMSET (&lifrbuf, 0, QSE_SIZEOF(lifrbuf));
#if defined(QSE_CHAR_IS_MCHAR)
qse_mbsxcpy (lifrbuf.lifr_name, QSE_SIZEOF(lifrbuf.lifr_name), cfg->name);
#else
ml = QSE_COUNTOF(lifrbuf.lifr_name);
if (qse_wcstombs (cfg->name, &wl, lifrbuf.lifr_name, &ml) <= -1) return -1;
#endif
if (ioctl (s, SIOCGLIFINDEX, &lifrbuf) <= -1) return -1;
cfg->index = lifrbuf.lifr_index;
if (ioctl (s, SIOCGLIFFLAGS, &lifrbuf) <= -1) return -1;
cfg->flags = 0;
if (lifrbuf.lifr_flags & IFF_UP) cfg->flags |= QSE_NWIFCFG_UP;
if (lifrbuf.lifr_flags & IFF_RUNNING) cfg->flags |= QSE_NWIFCFG_RUNNING;
if (lifrbuf.lifr_flags & IFF_BROADCAST) cfg->flags |= QSE_NWIFCFG_BCAST;
if (lifrbuf.lifr_flags & IFF_POINTOPOINT) cfg->flags |= QSE_NWIFCFG_PTOP;
if (ioctl (s, SIOCGLIFMTU, &lifrbuf) <= -1) return -1;
cfg->mtu = lifrbuf.lifr_mtu;
if (ioctl (s, SIOCGLIFADDR, &lifrbuf) <= -1) return -1;
qse_skadtonwad (&lifrbuf.lifr_addr, &cfg->addr);
if (ioctl (s, SIOCGLIFNETMASK, &lifrbuf) <= -1) return -1;
qse_skadtonwad (&lifrbuf.lifr_addr, &cfg->mask);
if (cfg->flags & QSE_NWIFCFG_BCAST)
{
if (ioctl (s, SIOCGLIFBRDADDR, &lifrbuf) <= -1) return -1;
qse_skadtonwad (&lifrbuf.lifr_broadaddr, &cfg->bcast);
}
else QSE_MEMSET (&cfg->bcast, 0, QSE_SIZEOF(cfg->bcast));
if (cfg->flags & QSE_NWIFCFG_PTOP)
{
if (ioctl (s, SIOCGLIFDSTADDR, &lifrbuf) <= -1) return -1;
qse_skadtonwad (&lifrbuf.lifr_dstaddr, &cfg->ptop);
}
else QSE_MEMSET (&cfg->ptop, 0, QSE_SIZEOF(cfg->ptop));
QSE_MEMSET (cfg->ethw, 0, QSE_SIZEOF(cfg->ethw));
#if defined(SIOCGENADDR)
{
struct ifreq ifrbuf;
QSE_MEMSET (&ifrbuf, 0, QSE_SIZEOF(ifrbuf));
qse_mbsxcpy (ifrbuf.ifr_name, QSE_COUNTOF(ifrbuf.ifr_name), lifrbuf.lifr_name);
if (ioctl (s, SIOCGENADDR, &ifrbuf) >= 0 &&
QSE_SIZEOF(ifrbuf.ifr_enaddr) >= QSE_SIZEOF(cfg->ethw))
{
QSE_MEMCPY (cfg->ethw, ifrbuf.ifr_enaddr, QSE_SIZEOF(cfg->ethw));
}
/* TODO: try DLPI if SIOCGENADDR fails... */
}
#endif
return 0;
#elif defined(SIOCGLIFADDR) && defined(HAVE_STRUCT_IF_LADDRREQ) && !defined(SIOCGLIFINDEX)
/* freebsd */
struct ifreq ifrbuf;
struct if_laddrreq iflrbuf;
qse_size_t ml, wl;
QSE_MEMSET (&ifrbuf, 0, QSE_SIZEOF(ifrbuf));
QSE_MEMSET (&iflrbuf, 0, QSE_SIZEOF(iflrbuf));
#if defined(QSE_CHAR_IS_MCHAR)
qse_mbsxcpy (iflrbuf.iflr_name, QSE_SIZEOF(iflrbuf.iflr_name), cfg->name);
qse_mbsxcpy (ifrbuf.ifr_name, QSE_SIZEOF(ifrbuf.ifr_name), cfg->name);
#else
ml = QSE_COUNTOF(iflrbuf.iflr_name);
if (qse_wcstombs (cfg->name, &wl, iflrbuf.iflr_name, &ml) <= -1) return -1;
ml = QSE_COUNTOF(ifrbuf.ifr_name);
if (qse_wcstombs (cfg->name, &wl, ifrbuf.ifr_name, &ml) <= -1) return -1;
#endif
#if defined(SIOCGIFINDEX)
if (ioctl (s, SIOCGIFINDEX, &ifrbuf) <= -1) return -1;
#if defined(HAVE_STRUCT_IFREQ_IFR_IFINDEX)
cfg->index = ifrbuf.ifr_ifindex;
#else
cfg->index = ifrbuf.ifr_index;
#endif
#else
cfg->index = 0;
#endif
if (ioctl (s, SIOCGIFFLAGS, &ifrbuf) <= -1) return -1;
cfg->flags = 0;
if (ifrbuf.ifr_flags & IFF_UP) cfg->flags |= QSE_NWIFCFG_UP;
if (ifrbuf.ifr_flags & IFF_RUNNING) cfg->flags |= QSE_NWIFCFG_RUNNING;
if (ifrbuf.ifr_flags & IFF_BROADCAST) cfg->flags |= QSE_NWIFCFG_BCAST;
if (ifrbuf.ifr_flags & IFF_POINTOPOINT) cfg->flags |= QSE_NWIFCFG_PTOP;
if (ioctl (s, SIOCGIFMTU, &ifrbuf) <= -1) return -1;
#if defined(HAVE_STRUCT_IFREQ_IFR_MTU)
cfg->mtu = ifrbuf.ifr_mtu;
#else
/* well, this is a bit dirty. but since all these are unions,
* the name must not really matter. some OSes just omitts defining
* the MTU field */
cfg->mtu = ifrbuf.ifr_metric;
#endif
if (cfg->type == QSE_NWIFCFG_IN6)
{
if (ioctl (s, SIOCGLIFADDR, &iflrbuf) <= -1) return -1;
qse_skadtonwad (&iflrbuf.addr, &cfg->addr);
QSE_MEMSET (&cfg->mask, 0, QSE_SIZEOF(cfg->mask));
cfg->mask.type = QSE_NWAD_IN6;
qse_prefixtoip6ad (iflrbuf.prefixlen, &cfg->mask.u.in6.addr);
QSE_MEMSET (&cfg->bcast, 0, QSE_SIZEOF(cfg->bcast));
if (cfg->flags & QSE_NWIFCFG_PTOP)
qse_skadtonwad (&iflrbuf.dstaddr, &cfg->ptop);
else QSE_MEMSET (&cfg->ptop, 0, QSE_SIZEOF(cfg->ptop));
}
else
{
if (ioctl (s, SIOCGIFADDR, &ifrbuf) <= -1) return -1;
qse_skadtonwad (&ifrbuf.ifr_addr, &cfg->addr);
if (ioctl (s, SIOCGIFNETMASK, &ifrbuf) <= -1) return -1;
qse_skadtonwad (&ifrbuf.ifr_addr, &cfg->mask);
if (cfg->flags & QSE_NWIFCFG_BCAST)
{
if (ioctl (s, SIOCGIFBRDADDR, &ifrbuf) <= -1) return -1;
qse_skadtonwad (&ifrbuf.ifr_broadaddr, &cfg->bcast);
}
else QSE_MEMSET (&cfg->bcast, 0, QSE_SIZEOF(cfg->bcast));
if (cfg->flags & QSE_NWIFCFG_PTOP)
{
if (ioctl (s, SIOCGIFDSTADDR, &ifrbuf) <= -1) return -1;
qse_skadtonwad (&ifrbuf.ifr_dstaddr, &cfg->ptop);
}
else QSE_MEMSET (&cfg->ptop, 0, QSE_SIZEOF(cfg->ptop));
}
QSE_MEMSET (cfg->ethw, 0, QSE_SIZEOF(cfg->ethw));
#if defined(CTL_NET) && defined(AF_ROUTE) && defined(AF_LINK)
{
int mib[6];
size_t len;
mib[0] = CTL_NET;
mib[1] = AF_ROUTE;
mib[2] = 0;
mib[3] = AF_LINK;
mib[4] = NET_RT_IFLIST;
mib[5] = cfg->index;
if (sysctl (mib, QSE_COUNTOF(mib), QSE_NULL, &len, QSE_NULL, 0) >= 0)
{
qse_mmgr_t* mmgr = QSE_MMGR_GETDFL();
void* buf;
buf = QSE_MMGR_ALLOC (mmgr, len);
if (buf)
{
if (sysctl (mib, QSE_COUNTOF(mib), buf, &len, QSE_NULL, 0) >= 0)
{
struct sockaddr_dl* sadl;
sadl = ((struct if_msghdr*)buf + 1);
/* i don't really care if it's really ethernet
* so long as the data is long enough */
if (sadl->sdl_alen >= QSE_COUNTOF(cfg->ethw))
QSE_MEMCPY (cfg->ethw, LLADDR(sadl), QSE_SIZEOF(cfg->ethw));
}
QSE_MMGR_FREE (mmgr, buf);
}
}
}
#endif
return 0;
#elif defined(SIOCGIFADDR)
struct ifreq ifrbuf;
qse_size_t ml, wl;
QSE_MEMSET (&ifrbuf, 0, QSE_SIZEOF(ifrbuf));
#if defined(QSE_CHAR_IS_MCHAR)
qse_mbsxcpy (ifrbuf.ifr_name, QSE_SIZEOF(ifrbuf.ifr_name), cfg->name);
#else
ml = QSE_COUNTOF(ifrbuf.ifr_name);
if (qse_wcstombs (cfg->name, &wl, ifrbuf.ifr_name, &ml) <= -1) return -1;
#endif
#if defined(SIOCGIFINDEX)
if (ioctl (s, SIOCGIFINDEX, &ifrbuf) <= -1) return -1;
#if defined(HAVE_STRUCT_IFREQ_IFR_IFINDEX)
cfg->index = ifrbuf.ifr_ifindex;
#else
cfg->index = ifrbuf.ifr_index;
#endif
#else
cfg->index = 0;
#endif
if (ioctl (s, SIOCGIFFLAGS, &ifrbuf) <= -1) return -1;
cfg->flags = 0;
if (ifrbuf.ifr_flags & IFF_UP) cfg->flags |= QSE_NWIFCFG_UP;
if (ifrbuf.ifr_flags & IFF_RUNNING) cfg->flags |= QSE_NWIFCFG_RUNNING;
if (ifrbuf.ifr_flags & IFF_BROADCAST) cfg->flags |= QSE_NWIFCFG_BCAST;
if (ifrbuf.ifr_flags & IFF_POINTOPOINT) cfg->flags |= QSE_NWIFCFG_PTOP;
if (ioctl (s, SIOCGIFMTU, &ifrbuf) <= -1) return -1;
#if defined(HAVE_STRUCT_IFREQ_IFR_MTU)
cfg->mtu = ifrbuf.ifr_mtu;
#else
/* well, this is a bit dirty. but since all these are unions,
* the name must not really matter. SCO just omits defining
* the MTU field, and uses ifr_metric instead */
cfg->mtu = ifrbuf.ifr_metric;
#endif
if (ioctl (s, SIOCGIFADDR, &ifrbuf) <= -1) return -1;
qse_skadtonwad (&ifrbuf.ifr_addr, &cfg->addr);
if (ioctl (s, SIOCGIFNETMASK, &ifrbuf) <= -1) return -1;
qse_skadtonwad (&ifrbuf.ifr_addr, &cfg->mask);
if (cfg->flags & QSE_NWIFCFG_BCAST)
{
if (ioctl (s, SIOCGIFBRDADDR, &ifrbuf) <= -1) return -1;
qse_skadtonwad (&ifrbuf.ifr_broadaddr, &cfg->bcast);
}
else QSE_MEMSET (&cfg->bcast, 0, QSE_SIZEOF(cfg->bcast));
if (cfg->flags & QSE_NWIFCFG_PTOP)
{
if (ioctl (s, SIOCGIFDSTADDR, &ifrbuf) <= -1) return -1;
qse_skadtonwad (&ifrbuf.ifr_dstaddr, &cfg->ptop);
}
else QSE_MEMSET (&cfg->ptop, 0, QSE_SIZEOF(cfg->ptop));
QSE_MEMSET (cfg->ethw, 0, QSE_SIZEOF(cfg->ethw));
#if defined(SIOCGIFHWADDR)
if (ioctl (s, SIOCGIFHWADDR, &ifrbuf) >= 0)
{
QSE_MEMCPY (cfg->ethw, ifrbuf.ifr_hwaddr.sa_data, QSE_SIZEOF(cfg->ethw));
}
#elif defined(MACIOC_GETADDR)
{
/* sco openserver
* use the streams interface to get the hardware address.
*/
int strfd;
qse_mchar_t devname[QSE_COUNTOF(ifrbuf.ifr_name) + 5 + 1] = QSE_MT("/dev/");
qse_mbscpy (&devname[5], ifrbuf.ifr_name);
if ((strfd = QSE_OPEN (devname, O_RDONLY, 0)) >= 0)
{
qse_uint8_t buf[QSE_SIZEOF(cfg->ethw)];
struct strioctl strioc;
strioc.ic_cmd = MACIOC_GETADDR;
strioc.ic_timout = -1;
strioc.ic_len = QSE_SIZEOF (buf);
strioc.ic_dp = buf;
if (ioctl (strfd, I_STR, (char *) &strioc) >= 0)
{
QSE_MEMCPY (cfg->ethw, buf, QSE_SIZEOF(cfg->ethw));
}
QSE_CLOSE (strfd);
}
}
#endif
return 0;
#else
/* TODO */
return -1;
#endif
}
int qse_getnwifcfg (qse_nwifcfg_t* cfg)
{
#if defined(_WIN32)
/* TODO */
return -1;
#elif defined(__OS2__)
/* TODO */
return -1;
#elif defined(__DOS__)
/* TODO */
return -1;
#else
int x, s = -1;
if (cfg->type == QSE_NWIFCFG_IN4)
{
#if defined(AF_INET)
s = socket (AF_INET, SOCK_DGRAM, 0);
#endif
}
else if (cfg->type == QSE_NWIFCFG_IN6)
{
#if defined(AF_INET6)
s = socket (AF_INET6, SOCK_DGRAM, 0);
#endif
}
if (s <= -1) return -1;
if (cfg->name[0] == QSE_T('\0')&& cfg->index >= 1)
{
/* TODO: support lookup by ifindex */
}
x = get_nwifcfg (s, cfg);
QSE_CLOSE (s);
return x;
#endif
}
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