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1212. [func] Enable IPv6 support when using ioctl style interface

Browse Source 
scanning and OS supports SIOCGLIFADDR using struct
                        if_laddrreq.
This commit is contained in:
Mark Andrews
2002-05-30 01:28:53 +00:00
parent c549b3a4d5
commit 5ed4b0d445
2 changed files with 73 additions and 27 deletions
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4
CHANGES
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@@ -1,3 +1,7 @@
1212. [func] Enable IPv6 support when using ioctl style interface
scanning and OS supports SIOCGLIFADDR using struct
if_laddrreq.
1211. [func] Enable IPv6 support when using sysctl style interface
scanning.

96
lib/isc/unix/ifiter_ioctl.c
View File

@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: ifiter_ioctl.c,v 1.26 2001/12/03 04:41:42 marka Exp $ */
/* $Id: ifiter_ioctl.c,v 1.27 2002/05/30 01:28:53 marka Exp $ */
/*
* Obtain the list of network interfaces using the SIOCGLIFCONF ioctl.
@@ -314,6 +314,10 @@ internal_current4(isc_interfaceiter_t *iter) {
struct ifreq ifreq;
int family;
char strbuf[ISC_STRERRORSIZE];
#if !defined(SIOCGLIFCONF) || defined(SIOCGLIFADDR)
struct if_laddrreq if_laddrreq;
int i, bits;
#endif
REQUIRE(VALID_IFITER(iter));
REQUIRE (iter->pos < (unsigned int) iter->ifc.ifc_len);
@@ -324,7 +328,8 @@ internal_current4(isc_interfaceiter_t *iter) {
memcpy(&ifreq, ifrp, sizeof(ifreq));
family = ifreq.ifr_addr.sa_family;
#ifdef ISC_PLATFORM_HAVEIPV6
#if !defined (SIOCGLIFCONF) && defined(SIOCGLIFADDR) && \
defined(ISC_PLATFORM_HAVEIPV6)
if (family != AF_INET && family != AF_INET6)
#else
if (family != AF_INET)
@@ -339,7 +344,7 @@ internal_current4(isc_interfaceiter_t *iter) {
memcpy(iter->current.name, ifreq.ifr_name, sizeof(ifreq.ifr_name));
get_addr(family, &iter->current.address,
(struct sockaddr *)&ifreq.ifr_addr);
(struct sockaddr *)&ifrp->ifr_addr);
/*
* If the interface does not have a address ignore it.
@@ -375,6 +380,9 @@ internal_current4(isc_interfaceiter_t *iter) {
return (ISC_R_IGNORE);
}
if ((ifreq.ifr_flags & IFF_RUNNING) == 0)
return (ISC_R_IGNORE);
if ((ifreq.ifr_flags & IFF_UP) != 0)
iter->current.flags |= INTERFACE_F_UP;
@@ -384,6 +392,44 @@ internal_current4(isc_interfaceiter_t *iter) {
if ((ifreq.ifr_flags & IFF_LOOPBACK) != 0)
iter->current.flags |= INTERFACE_F_LOOPBACK;
#if !defined(SIOCGLIFCONF) || defined(SIOCGLIFADDR)
if (family == AF_INET)
goto inet;
memset(&if_laddrreq, 0, sizeof(if_laddrreq));
memcpy(if_laddrreq.iflr_name, iter->current.name,
sizeof(if_laddrreq.iflr_name));
memcpy(&if_laddrreq.addr, &iter->current.address.type.in6,
sizeof(iter->current.address.type.in6));
if (ioctl(iter->socket, SIOCGLIFADDR, &if_laddrreq) < 0) {
isc__strerror(errno, strbuf, sizeof(strbuf));
UNEXPECTED_ERROR(__FILE__, __LINE__,
"%s: getting interface address: %s",
ifreq.ifr_name, strbuf);
return (ISC_R_IGNORE);
}
/*
* Netmask already zeroed.
*/
iter->current.netmask.family = family;
for (i = 0; i < 16; i++) {
if (if_laddrreq.prefixlen > 8) {
bits = 0;
if_laddrreq.prefixlen -= 8;
} else {
bits = 8 - if_laddrreq.prefixlen;
if_laddrreq.prefixlen = 0;
}
iter->current.netmask.type.in6.s6_addr[i] = (~0 << bits) & 0xff;
}
return (ISC_R_SUCCESS);
inet:
#endif
if (family != AF_INET)
return (ISC_R_IGNORE);
/*
* If the interface is point-to-point, get the destination address.
*/
@@ -414,31 +460,24 @@ internal_current4(isc_interfaceiter_t *iter) {
*/
memset(&ifreq, 0, sizeof(ifreq));
memcpy(&ifreq, ifrp, sizeof(ifreq));
switch (family) {
case AF_INET:
/*
* Ignore the HP/UX warning about "interger overflow during
* conversion. It comes from its own macro definition,
* and is really hard to shut up.
*/
if (ioctl(iter->socket, SIOCGIFNETMASK, (char *)&ifreq)
< 0) {
isc__strerror(errno, strbuf, sizeof(strbuf));
UNEXPECTED_ERROR(__FILE__, __LINE__,
isc_msgcat_get(isc_msgcat,
ISC_MSGSET_IFITERIOCTL,
ISC_MSG_GETNETMASK,
"%s: getting netmask: %s"),
ifreq.ifr_name, strbuf);
return (ISC_R_IGNORE);
}
get_addr(family, &iter->current.netmask,
(struct sockaddr *)&ifreq.ifr_addr);
break;
case AF_INET6:
break;
/*
* Ignore the HP/UX warning about "interger overflow during
* conversion. It comes from its own macro definition,
* and is really hard to shut up.
*/
if (ioctl(iter->socket, SIOCGIFNETMASK, (char *)&ifreq)
< 0) {
isc__strerror(errno, strbuf, sizeof(strbuf));
UNEXPECTED_ERROR(__FILE__, __LINE__,
isc_msgcat_get(isc_msgcat,
ISC_MSGSET_IFITERIOCTL,
ISC_MSG_GETNETMASK,
"%s: getting netmask: %s"),
ifreq.ifr_name, strbuf);
return (ISC_R_IGNORE);
}
get_addr(family, &iter->current.netmask,
(struct sockaddr *)&ifreq.ifr_addr);
return (ISC_R_SUCCESS);
}
@@ -513,6 +552,9 @@ internal_current6(isc_interfaceiter_t *iter) {
return (ISC_R_IGNORE);
}
if ((lifreq.lifr_flags & IFF_RUNNING) == 0)
return (ISC_R_IGNORE);
if ((lifreq.lifr_flags & IFF_UP) != 0)
iter->current.flags |= INTERFACE_F_UP;