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Add v6 support.

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@18370 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Love Hörnquist Åstrand
2006-10-09 10:58:45 +00:00
parent 34b5279b60
commit 0e9fd1f2db
1 changed files with 268 additions and 115 deletions
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255
lib/roken/socket_wrapper.c
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@@ -147,6 +147,8 @@
#define SOCKET_FORMAT "%c%02X%04X"
#define SOCKET_TYPE_CHAR_TCP 'T'
#define SOCKET_TYPE_CHAR_UDP 'U'
#define SOCKET_TYPE_CHAR_TCP_V6 't'
#define SOCKET_TYPE_CHAR_UDP_V6 'u'
#define MAX_WRAPPED_INTERFACES 16
@@ -157,6 +159,18 @@ static struct sockaddr *sockaddr_dup(const void *data, socklen_t len)
return ret;
}
static void set_port(int family, int prt, struct sockaddr *addr)
{
switch (family) {
case AF_INET:
((struct sockaddr_in *)addr)->sin_port = htons(prt);
break;
case AF_INET6:
((struct sockaddr_in6 *)addr)->sin6_port = htons(prt);
break;
}
}
struct socket_info
{
int fd;
@@ -215,17 +229,13 @@ static unsigned int socket_wrapper_default_iface(void)
return 1;/* 127.0.0.1 */
}
static int convert_un_in(const struct sockaddr_un *un, struct sockaddr_in *in, socklen_t *len)
static int convert_un_in(const struct sockaddr_un *un, struct sockaddr *in, socklen_t *len)
{
unsigned int iface;
unsigned int prt;
const char *p;
char type;
if ((*len) < sizeof(struct sockaddr_in)) {
return 0;
}
p = strrchr(un->sun_path, '/');
if (p) p++; else p = un->sun_path;
@@ -234,11 +244,6 @@ static int convert_un_in(const struct sockaddr_un *un, struct sockaddr_in *in, s
return -1;
}
if (type != SOCKET_TYPE_CHAR_TCP && type != SOCKET_TYPE_CHAR_UDP) {
errno = EINVAL;
return -1;
}
if (iface == 0 || iface > MAX_WRAPPED_INTERFACES) {
errno = EINVAL;
return -1;
@@ -249,32 +254,67 @@ static int convert_un_in(const struct sockaddr_un *un, struct sockaddr_in *in, s
return -1;
}
in->sin_family = AF_INET;
in->sin_addr.s_addr = htonl((127<<24) | iface);
in->sin_port = htons(prt);
switch(type) {
case SOCKET_TYPE_CHAR_TCP:
case SOCKET_TYPE_CHAR_UDP: {
struct sockaddr_in *in2 = (struct sockaddr_in *)in;
if ((*len) < sizeof(*in2)) {
errno = EINVAL;
return -1;
}
memset(in2, 0, sizeof(*in2));
in2->sin_family = AF_INET;
in2->sin_addr.s_addr = htonl((127<<24) | iface);
in2->sin_port = htons(prt);
*len = sizeof(*in2);
break;
}
case SOCKET_TYPE_CHAR_TCP_V6:
case SOCKET_TYPE_CHAR_UDP_V6: {
struct sockaddr_in6 *in2 = (struct sockaddr_in6 *)in;
if ((*len) < sizeof(*in2)) {
errno = EINVAL;
return -1;
}
memset(in2, 0, sizeof(*in2));
in2->sin6_family = AF_INET6;
in2->sin6_addr.s6_addr[0] = iface + 1; /*XXX*/
in2->sin6_port = htons(prt);
*len = sizeof(*in2);
break;
}
default:
errno = EINVAL;
return -1;
}
*len = sizeof(struct sockaddr_in);
return 0;
}
static int convert_in_un_remote(struct socket_info *si, const struct sockaddr_in *in, struct sockaddr_un *un,
static int convert_in_un_remote(struct socket_info *si, const struct sockaddr *inaddr, struct sockaddr_un *un,
int *bcast)
{
char u_type = '\0';
char b_type = '\0';
char a_type = '\0';
char type = '\0';
unsigned int addr= ntohl(in->sin_addr.s_addr);
unsigned int prt = ntohs(in->sin_port);
unsigned int prt;
unsigned int iface;
int is_bcast = 0;
if (bcast) *bcast = 0;
if (prt == 0) {
errno = EINVAL;
return -1;
}
switch (si->family) {
case AF_INET: {
const struct sockaddr_in *in =
(const struct sockaddr_in *)inaddr;
unsigned int addr = ntohl(in->sin_addr.s_addr);
char u_type = '\0';
char b_type = '\0';
char a_type = '\0';
switch (si->type) {
case SOCK_STREAM:
@@ -287,6 +327,7 @@ static int convert_in_un_remote(struct socket_info *si, const struct sockaddr_in
break;
}
prt = ntohs(in->sin_port);
if (a_type && addr == 0xFFFFFFFF) {
/* 255.255.255.255 only udp */
is_bcast = 2;
@@ -306,8 +347,37 @@ static int convert_in_un_remote(struct socket_info *si, const struct sockaddr_in
errno = ENETUNREACH;
return -1;
}
if (bcast) *bcast = is_bcast;
}
case AF_INET6: {
const struct sockaddr_in6 *in =
(const struct sockaddr_in6 *)inaddr;
switch (si->type) {
case SOCK_STREAM:
type = SOCKET_TYPE_CHAR_TCP_V6;
break;
case SOCK_DGRAM:
type = SOCKET_TYPE_CHAR_UDP_V6;
break;
}
/* XXX no multicast/broadcast */
prt = ntohs(in->sin6_port);
iface = 0 + 1; /* XXX */
break;
}
default:
errno = ENETUNREACH;
return -1;
}
if (prt == 0) {
errno = EINVAL;
return -1;
}
if (is_bcast) {
snprintf(un->sun_path, sizeof(un->sun_path), "%s/EINVAL",
@@ -322,22 +392,29 @@ static int convert_in_un_remote(struct socket_info *si, const struct sockaddr_in
return 0;
}
static int convert_in_un_alloc(struct socket_info *si, const struct sockaddr_in *in, struct sockaddr_un *un,
static int convert_in_un_alloc(struct socket_info *si, const struct sockaddr *inaddr, struct sockaddr_un *un,
int *bcast)
{
char u_type = '\0';
char d_type = '\0';
char b_type = '\0';
char a_type = '\0';
char type = '\0';
unsigned int addr= ntohl(in->sin_addr.s_addr);
unsigned int prt = ntohs(in->sin_port);
unsigned int prt;
unsigned int iface;
struct stat st;
int is_bcast = 0;
if (bcast) *bcast = 0;
switch (si->family) {
case AF_INET: {
const struct sockaddr_in *in =
(const struct sockaddr_in *)inaddr;
unsigned int addr = ntohl(in->sin_addr.s_addr);
char u_type = '\0';
char d_type = '\0';
char b_type = '\0';
char a_type = '\0';
prt = ntohs(in->sin_port);
switch (si->type) {
case SOCK_STREAM:
u_type = SOCKET_TYPE_CHAR_TCP;
@@ -375,6 +452,32 @@ static int convert_in_un_alloc(struct socket_info *si, const struct sockaddr_in
errno = EADDRNOTAVAIL;
return -1;
}
}
case AF_INET6: {
const struct sockaddr_in6 *in =
(const struct sockaddr_in6 *)inaddr;
switch (si->type) {
case SOCK_STREAM:
type = SOCKET_TYPE_CHAR_TCP_V6;
break;
case SOCK_DGRAM:
type = SOCKET_TYPE_CHAR_UDP_V6;
break;
}
/* XXX no multicast/broadcast */
prt = ntohs(in->sin6_port);
iface = 0 + 1; /* XXX */
break;
}
default:
errno = ENETUNREACH;
return -1;
}
if (bcast) *bcast = is_bcast;
@@ -385,11 +488,8 @@ static int convert_in_un_alloc(struct socket_info *si, const struct sockaddr_in
socket_wrapper_dir(), type, iface, prt);
if (stat(un->sun_path, &st) == 0) continue;
((struct sockaddr_in *)si->myname)->sin_port = htons(prt);
return 0;
set_port(si->family, prt, si->myname);
}
errno = ENFILE;
return -1;
}
snprintf(un->sun_path, sizeof(un->sun_path), "%s/"SOCKET_FORMAT,
@@ -418,6 +518,7 @@ static int sockaddr_convert_to_un(struct socket_info *si, const struct sockaddr
switch (in_addr->sa_family) {
case AF_INET:
case AF_INET6:
switch (si->type) {
case SOCK_STREAM:
case SOCK_DGRAM:
@@ -427,9 +528,9 @@ static int sockaddr_convert_to_un(struct socket_info *si, const struct sockaddr
return -1;
}
if (alloc_sock) {
return convert_in_un_alloc(si, (const struct sockaddr_in *)in_addr, out_addr, bcast);
return convert_in_un_alloc(si, in_addr, out_addr, bcast);
} else {
return convert_in_un_remote(si, (const struct sockaddr_in *)in_addr, out_addr, bcast);
return convert_in_un_remote(si, in_addr, out_addr, bcast);
}
default:
break;
@@ -463,6 +564,7 @@ static int sockaddr_convert_from_un(const struct socket_info *si,
switch (family) {
case AF_INET:
case AF_INET6:
switch (si->type) {
case SOCK_STREAM:
case SOCK_DGRAM:
@@ -471,7 +573,7 @@ static int sockaddr_convert_from_un(const struct socket_info *si,
errno = ESOCKTNOSUPPORT;
return -1;
}
return convert_un_in(in_addr, (struct sockaddr_in *)out_addr, _out_addrlen);
return convert_un_in(in_addr, out_addr, _out_addrlen);
default:
break;
}
@@ -803,7 +905,11 @@ static void swrap_dump_packet(struct socket_info *si, const struct sockaddr *add
return;
}
if (si->family != AF_INET) {
switch (si->family) {
case AF_INET:
case AF_INET6:
break;
default:
return;
}
@@ -1067,6 +1173,7 @@ _PUBLIC_ int swrap_socket(int family, int type, int protocol)
switch (family) {
case AF_INET:
case AF_INET6:
break;
case AF_UNIX:
return real_socket(family, type, protocol);
@@ -1085,6 +1192,7 @@ _PUBLIC_ int swrap_socket(int family, int type, int protocol)
return -1;
}
#if 0
switch (protocol) {
case 0:
break;
@@ -1092,6 +1200,7 @@ _PUBLIC_ int swrap_socket(int family, int type, int protocol)
errno = EPROTONOSUPPORT;
return -1;
}
#endif
fd = real_socket(AF_UNIX, type, 0);
@@ -1117,8 +1226,8 @@ _PUBLIC_ int swrap_accept(int s, struct sockaddr *addr, socklen_t *addrlen)
socklen_t un_addrlen = sizeof(un_addr);
struct sockaddr_un un_my_addr;
socklen_t un_my_addrlen = sizeof(un_my_addr);
struct sockaddr my_addr;
socklen_t my_addrlen = sizeof(my_addr);
struct sockaddr *my_addr;
socklen_t my_addrlen;
int ret;
parent_si = find_socket_info(s);
@@ -1159,16 +1268,26 @@ _PUBLIC_ int swrap_accept(int s, struct sockaddr *addr, socklen_t *addrlen)
return ret;
}
my_addrlen = *addrlen;
my_addr = malloc(my_addrlen);
if (my_addr == NULL) {
free(child_si);
close(fd);
return -1;
}
ret = sockaddr_convert_from_un(child_si, &un_my_addr, un_my_addrlen,
child_si->family, &my_addr, &my_addrlen);
child_si->family, my_addr, &my_addrlen);
if (ret == -1) {
free(child_si);
free(my_addr);
close(fd);
return ret;
}
child_si->myname_len = my_addrlen;
child_si->myname = sockaddr_dup(&my_addr, my_addrlen);
child_si->myname = sockaddr_dup(my_addr, my_addrlen);
free(my_addr);
child_si->peername_len = *addrlen;
child_si->peername = sockaddr_dup(addr, *addrlen);
@@ -1192,7 +1311,6 @@ static int autobind_start;
static int swrap_auto_bind(struct socket_info *si)
{
struct sockaddr_un un_addr;
struct sockaddr_in in;
int i;
char type;
int ret;
@@ -1208,6 +1326,10 @@ static int swrap_auto_bind(struct socket_info *si)
un_addr.sun_family = AF_UNIX;
switch (si->family) {
case AF_INET: {
struct sockaddr_in in;
switch (si->type) {
case SOCK_STREAM:
type = SOCKET_TYPE_CHAR_TCP;
@@ -1220,6 +1342,42 @@ static int swrap_auto_bind(struct socket_info *si)
return -1;
}
memset(&in, 0, sizeof(in));
in.sin_family = AF_INET;
in.sin_addr.s_addr = htonl(127<<24 |
socket_wrapper_default_iface());
si->myname_len = sizeof(in);
si->myname = sockaddr_dup(&in, si->myname_len);
break;
}
case AF_INET6: {
struct sockaddr_in6 in6;
switch (si->type) {
case SOCK_STREAM:
type = SOCKET_TYPE_CHAR_TCP_V6;
break;
case SOCK_DGRAM:
type = SOCKET_TYPE_CHAR_UDP_V6;
break;
default:
errno = ESOCKTNOSUPPORT;
return -1;
}
memset(&in6, 0, sizeof(in6));
in6.sin6_family = AF_INET6;
in6.sin6_addr.s6_addr[0] = 1; /* XXX */
si->myname_len = sizeof(in6);
si->myname = sockaddr_dup(&in6, si->myname_len);
break;
}
default:
errno = ESOCKTNOSUPPORT;
return -1;
}
if (autobind_start > 60000) {
autobind_start = 10000;
}
@@ -1244,13 +1402,8 @@ static int swrap_auto_bind(struct socket_info *si)
return -1;
}
memset(&in, 0, sizeof(in));
in.sin_family = AF_INET;
in.sin_port = htons(port);
in.sin_addr.s_addr = htonl(127<<24 | socket_wrapper_default_iface());
set_port(si->family, port, si->myname);
si->myname_len = sizeof(in);
si->myname = sockaddr_dup(&in, si->myname_len);
return 0;
}