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Add Solaris IPv6 support

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This commit is contained in:
Mark Andrews 2000-01-18 05:42:33 +00:00
parent 0857dced07
commit ccb185b942
1 changed files with 96 additions and 42 deletions
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138
lib/isc/unix/ifiter_ioctl.c
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@ -16,9 +16,32 @@
*/
/*
* Obtain the list of network interfaces using the SIOCGIFCONF ioctl.
* Obtain the list of network interfaces using the SIOCGLIFCONF ioctl.
* See netintro(4).
*/
#ifndef SIOCGLIFCONF
#define SIOCGLIFCONF SIOCGIFCONF
#define lifc_len ifc_len
#define lifc_buf ifc_buf
#define lifc_req ifc_req
#define lifconf ifconf
#else
#define ISC_HAVE_LIFC_FAMILY 1
#define ISC_HAVE_LIFC_FLAGS 1
#endif
#ifndef SIOCGLIFADDR
#define SIOCGLIFADDR SIOCGIFADDR
#define SIOCGLIFFLAGS SIOCGIFFLAGS
#define SIOCGLIFDSTADDR SIOCGIFDSTADDR
#define SIOCGLIFNETMASK SIOCGIFNETMASK
#define lifr_addr ifr_addr
#define lifr_name ifr_name
#define lifr_dstaddr ifr_dstaddr
#define lifr_flags ifr_flags
#define ss_family sa_family
#define lifreq ifreq
#endif
#define IFITER_MAGIC 0x49464954U /* IFIT. */
#define VALID_IFITER(t) ((t) != NULL && (t)->magic == IFITER_MAGIC)
@ -27,18 +50,18 @@ struct isc_interfaceiter {
unsigned int magic; /* Magic number. */
isc_mem_t *mctx;
int socket;
struct ifconf ifc;
struct lifconf ifc;
void *buf; /* Buffer for sysctl data. */
unsigned int bufsize; /* Bytes allocated. */
unsigned int pos; /* Current offset in
SIOCGIFCONF data */
SIOCGLIFCONF data */
isc_interface_t current; /* Current interface data. */
isc_result_t result; /* Last result code. */
};
/*
* Size of buffer for SIOCGIFCONF, in bytes. We assume no sane system
* Size of buffer for SIOCGLIFCONF, in bytes. We assume no sane system
* will have more than a megabyte of interface configuration data.
*/
#define IFCONF_BUFSIZE_INITIAL 4096
@ -61,7 +84,7 @@ isc_interfaceiter_create(isc_mem_t *mctx, isc_interfaceiter_t **iterp)
iter->mctx = mctx;
iter->buf = NULL;
/* Create an unbound datagram socket to do the SIOCGIFADDR ioctl on. */
/* Create an unbound datagram socket to do the SIOCGLIFADDR ioctl on. */
if ((iter->socket = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
UNEXPECTED_ERROR(__FILE__, __LINE__,
"making interface scan socket: %s",
@ -83,9 +106,16 @@ isc_interfaceiter_create(isc_mem_t *mctx, isc_interfaceiter_t **iterp)
goto alloc_failure;
}
iter->ifc.ifc_len = iter->bufsize;
iter->ifc.ifc_buf = iter->buf;
if (ioctl(iter->socket, SIOCGIFCONF, (char *) &iter->ifc) < 0) {
memset(&iter->ifc.lifc_len, 0, sizeof(iter->ifc.lifc_len));
#ifdef ISC_HAVE_LIFC_FAMILY
iter->ifc.lifc_family = AF_UNSPEC;
#endif
#ifdef ISC_HAVE_LIFC_FLAGS
iter->ifc.lifc_flags = 0;
#endif
iter->ifc.lifc_len = iter->bufsize;
iter->ifc.lifc_buf = iter->buf;
if (ioctl(iter->socket, SIOCGLIFCONF, (char *) &iter->ifc) == -1) {
if (errno != EINVAL) {
UNEXPECTED_ERROR(__FILE__, __LINE__,
"get interface configuration: %s",
@ -100,11 +130,11 @@ isc_interfaceiter_create(isc_mem_t *mctx, isc_interfaceiter_t **iterp)
* Some OS's just return what will fit rather
* than set EINVAL if the buffer is too small
* to fit all the interfaces in. If
* ifc.ifc_len is too near to the end of the
* ifc.lifc_len is too near to the end of the
* buffer we will grow it just in case and
* retry.
*/
if (iter->ifc.ifc_len + 2 * sizeof(struct ifreq)
if (iter->ifc.lifc_len + 2 * sizeof(struct lifreq)
< iter->bufsize)
break;
}
@ -152,72 +182,96 @@ isc_interfaceiter_create(isc_mem_t *mctx, isc_interfaceiter_t **iterp)
static isc_result_t
internal_current(isc_interfaceiter_t *iter) {
struct ifreq *ifrp;
struct ifreq ifreq;
struct lifreq *ifrp;
struct lifreq lifreq;
int family;
REQUIRE(VALID_IFITER(iter));
REQUIRE (iter->pos < (unsigned int) iter->ifc.ifc_len);
REQUIRE (iter->pos < (unsigned int) iter->ifc.lifc_len);
ifrp = (struct ifreq *)((char *) iter->ifc.ifc_req + iter->pos);
ifrp = (struct lifreq *)((char *) iter->ifc.lifc_req + iter->pos);
memcpy(&ifreq, ifrp, sizeof ifreq);
memset(&lifreq, 0, sizeof lifreq);
memcpy(&lifreq, ifrp, sizeof lifreq);
family = ifreq.ifr_addr.sa_family;
if (family != AF_INET) /* XXX IPv6 */
family = lifreq.lifr_addr.ss_family;
if (family != AF_INET && family != AF_INET6)
return (ISC_R_FAILURE);
memset(&iter->current, 0, sizeof(iter->current));
iter->current.af = family;
INSIST(sizeof(ifreq.ifr_name) <= sizeof(iter->current.name));
memcpy(iter->current.name, ifreq.ifr_name, sizeof(ifreq.ifr_name));
INSIST(sizeof(lifreq.lifr_name) <= sizeof(iter->current.name));
memcpy(iter->current.name, lifreq.lifr_name, sizeof(lifreq.lifr_name));
get_addr(family, &iter->current.address, &ifreq.ifr_addr);
get_addr(family, &iter->current.address,
(struct sockaddr *)&lifreq.lifr_addr);
/* Get interface flags. */
iter->current.flags = 0;
if (ioctl(iter->socket, SIOCGIFFLAGS, (char *) &ifreq) < 0) {
if (ioctl(iter->socket, SIOCGLIFFLAGS, (char *) &lifreq) < 0) {
UNEXPECTED_ERROR(__FILE__, __LINE__,
"%s: getting interface flags: %s",
ifreq.ifr_name,
lifreq.lifr_name,
strerror(errno));
return (ISC_R_UNEXPECTED);
}
if ((ifreq.ifr_flags & IFF_UP) != 0)
if ((lifreq.lifr_flags & IFF_UP) != 0)
iter->current.flags |= INTERFACE_F_UP;
if ((ifreq.ifr_flags & IFF_POINTOPOINT) != 0)
if ((lifreq.lifr_flags & IFF_POINTOPOINT) != 0)
iter->current.flags |= INTERFACE_F_POINTTOPOINT;
if ((ifreq.ifr_flags & IFF_LOOPBACK) != 0)
if ((lifreq.lifr_flags & IFF_LOOPBACK) != 0)
iter->current.flags |= INTERFACE_F_LOOPBACK;
/* If the interface is point-to-point, get the destination address. */
if ((iter->current.flags & INTERFACE_F_POINTTOPOINT) != 0) {
if (ioctl(iter->socket, SIOCGIFDSTADDR, (char *) &ifreq) < 0) {
if (ioctl(iter->socket, SIOCGLIFDSTADDR, (char *) &lifreq) < 0) {
UNEXPECTED_ERROR(__FILE__, __LINE__,
"%s: getting destination address: %s",
ifreq.ifr_name,
lifreq.lifr_name,
strerror(errno));
return (ISC_R_UNEXPECTED);
}
get_addr(family, &iter->current.dstaddress,
&ifreq.ifr_dstaddr);
(struct sockaddr *)&lifreq.lifr_dstaddr);
}
/* Get the network mask. */
if (ioctl(iter->socket, SIOCGIFNETMASK, (char *) &ifreq) < 0) {
UNEXPECTED_ERROR(__FILE__, __LINE__,
"%s: getting netmask: %s",
ifreq.ifr_name,
strerror(errno));
return (ISC_R_UNEXPECTED);
memset(&lifreq, 0, sizeof lifreq);
memcpy(&lifreq, ifrp, sizeof lifreq);
switch (family) {
case AF_INET:
if (ioctl(iter->socket, SIOCGLIFNETMASK, (char *) &lifreq) < 0) {
UNEXPECTED_ERROR(__FILE__, __LINE__,
"%s: getting netmask: %s",
lifreq.lifr_name,
strerror(errno));
return (ISC_R_UNEXPECTED);
}
get_addr(family, &iter->current.netmask,
(struct sockaddr *)&lifreq.lifr_addr);
break;
case AF_INET6: {
#ifdef lifr_addrlen
int i, bits;
/* netmask already zeroed */
iter->current.netmask.family = family;
for (i = 0 ; i < lifreq.lifr_addrlen; i += 8) {
bits = lifreq.lifr_addrlen - i;
bits = (bits < 8 ) ? (8-bits) : 0;
iter->current.netmask.type.in6.s6_addr[i/8] =
(~0 << bits) &0xff;
}
#endif
break;
}
}
get_addr(family, &iter->current.netmask,
&ifreq.ifr_addr);
return (ISC_R_SUCCESS);
}
@ -231,20 +285,20 @@ internal_current(isc_interfaceiter_t *iter) {
*/
static isc_result_t
internal_next(isc_interfaceiter_t *iter) {
struct ifreq *ifrp;
struct lifreq *ifrp;
REQUIRE (iter->pos < (unsigned int) iter->ifc.ifc_len);
REQUIRE (iter->pos < (unsigned int) iter->ifc.lifc_len);
ifrp = (struct ifreq *)((char *) iter->ifc.ifc_req + iter->pos);
ifrp = (struct lifreq *)((char *) iter->ifc.lifc_req + iter->pos);
#ifdef ISC_PLATFORM_HAVESALEN
if (ifrp->ifr_addr.sa_len > sizeof(struct sockaddr))
iter->pos += sizeof(ifrp->ifr_name) + ifrp->ifr_addr.sa_len;
if (ifrp->lifr_addr.sa_len > sizeof(struct sockaddr))
iter->pos += sizeof(ifrp->lifr_name) + ifrp->lifr_addr.sa_len;
else
#endif
iter->pos += sizeof *ifrp;
if (iter->pos >= (unsigned int) iter->ifc.ifc_len)
if (iter->pos >= (unsigned int) iter->ifc.lifc_len)
return (ISC_R_NOMORE);
return (ISC_R_SUCCESS);