Pi-Hole/dnsmasq
1
0
Fork 0
mirror of https://github.com/pi-hole/dnsmasq.git synced 2025-12-19 18:28:25 +00:00
Code Issues Packages Projects Releases Wiki Activity

Remove ability to compile without IPv6 support.

Browse Source 
This was the source of a large number of #ifdefs, originally
included for use with old embedded libc versions. I'm
sure no-one wants or needs IPv6-free code these days, so this
is a move towards more maintainable code.
This commit is contained in:
Simon Kelley
2018-10-23 22:10:17 +01:00
parent a220545c42
commit ee8750451b
22 changed files with 56 additions and 418 deletions
Download Patch File Download Diff File Expand all files Collapse all files

54
src/network.c
View File

@@ -137,12 +137,10 @@ int iface_check(int family, struct all_addr *addr, char *name, int *auth)
if (family == AF_INET &&
tmp->addr.in.sin_addr.s_addr == addr->addr.addr4.s_addr)
ret = match_addr = tmp->used = 1;
#ifdef HAVE_IPV6
else if (family == AF_INET6 &&
IN6_ARE_ADDR_EQUAL(&tmp->addr.in6.sin6_addr,
&addr->addr.addr6))
ret = match_addr = tmp->used = 1;
#endif
}
}
@@ -162,11 +160,9 @@ int iface_check(int family, struct all_addr *addr, char *name, int *auth)
else if (addr && tmp->addr.sa.sa_family == AF_INET && family == AF_INET &&
tmp->addr.in.sin_addr.s_addr == addr->addr.addr4.s_addr)
break;
#ifdef HAVE_IPV6
else if (addr && tmp->addr.sa.sa_family == AF_INET6 && family == AF_INET6 &&
IN6_ARE_ADDR_EQUAL(&tmp->addr.in6.sin6_addr, &addr->addr.addr6))
break;
#endif
if (tmp && auth)
{
@@ -200,11 +196,8 @@ int loopback_exception(int fd, int family, struct all_addr *addr, char *name)
if (iface->addr.in.sin_addr.s_addr == addr->addr.addr4.s_addr)
return 1;
}
#ifdef HAVE_IPV6
else if (IN6_ARE_ADDR_EQUAL(&iface->addr.in6.sin6_addr, &addr->addr.addr6))
return 1;
#endif
}
}
return 0;
@@ -292,19 +285,15 @@ static int iface_allowed(struct iface_param *param, int if_index, char *label,
al->addr.addr.addr4 = addr->in.sin_addr;
al->flags = 0;
}
#ifdef HAVE_IPV6
else
{
al->addr.addr.addr6 = addr->in6.sin6_addr;
al->flags = ADDRLIST_IPV6;
}
#endif
}
}
#ifdef HAVE_IPV6
if (addr->sa.sa_family != AF_INET6 || !IN6_IS_ADDR_LINKLOCAL(&addr->in6.sin6_addr))
#endif
{
struct interface_name *int_name;
struct addrlist *al;
@@ -337,7 +326,6 @@ static int iface_allowed(struct iface_param *param, int if_index, char *label,
}
}
#ifdef HAVE_IPV6
if (addr->sa.sa_family == AF_INET6 && (name->flags & AUTH6))
{
if (param->spare)
@@ -357,8 +345,6 @@ static int iface_allowed(struct iface_param *param, int if_index, char *label,
al->flags = ADDRLIST_IPV6;
}
}
#endif
}
#endif
@@ -386,7 +372,6 @@ static int iface_allowed(struct iface_param *param, int if_index, char *label,
al->addr.addr.addr4 = addr->in.sin_addr;
al->flags = 0;
}
#ifdef HAVE_IPV6
else
{
al->addr.addr.addr6 = addr->in6.sin6_addr;
@@ -396,7 +381,6 @@ static int iface_allowed(struct iface_param *param, int if_index, char *label,
if (!(iface_flags & IFACE_PERMANENT) || (iface_flags & (IFACE_DEPRECATED | IFACE_TENTATIVE)))
al->flags |= ADDRLIST_REVONLY;
}
#endif
}
}
}
@@ -438,11 +422,9 @@ static int iface_allowed(struct iface_param *param, int if_index, char *label,
!iface_check(AF_INET, (struct all_addr *)&addr->in.sin_addr, label, &auth_dns))
return 1;
#ifdef HAVE_IPV6
if (addr->sa.sa_family == AF_INET6 &&
!iface_check(AF_INET6, (struct all_addr *)&addr->in6.sin6_addr, label, &auth_dns))
return 1;
#endif
#ifdef HAVE_DHCP
/* No DHCP where we're doing auth DNS. */
@@ -501,7 +483,6 @@ static int iface_allowed(struct iface_param *param, int if_index, char *label,
return 0;
}
#ifdef HAVE_IPV6
static int iface_allowed_v6(struct in6_addr *local, int prefix,
int scope, int if_index, int flags,
int preferred, int valid, void *vparam)
@@ -529,7 +510,6 @@ static int iface_allowed_v6(struct in6_addr *local, int prefix,
return iface_allowed((struct iface_param *)vparam, if_index, NULL, &addr, netmask, prefix, flags);
}
#endif
static int iface_allowed_v4(struct in_addr local, int if_index, char *label,
struct in_addr netmask, struct in_addr broadcast, void *vparam)
@@ -633,9 +613,7 @@ int enumerate_interfaces(int reset)
param.spare = spare;
#ifdef HAVE_IPV6
ret = iface_enumerate(AF_INET6, &param, iface_allowed_v6);
#endif
if (ret)
ret = iface_enumerate(AF_INET, &param, iface_allowed_v4);
@@ -740,10 +718,8 @@ static int make_sock(union mysockaddr *addr, int type, int dienow)
if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) == -1 || !fix_fd(fd))
goto err;
#ifdef HAVE_IPV6
if (family == AF_INET6 && setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &opt, sizeof(opt)) == -1)
goto err;
#endif
if ((rc = bind(fd, (struct sockaddr *)addr, sa_len(addr))) == -1)
goto err;
@@ -767,15 +743,12 @@ static int make_sock(union mysockaddr *addr, int type, int dienow)
#endif
}
}
#ifdef HAVE_IPV6
else if (!set_ipv6pktinfo(fd))
goto err;
#endif
return fd;
}
#ifdef HAVE_IPV6
int set_ipv6pktinfo(int fd)
{
int opt = 1;
@@ -802,7 +775,6 @@ int set_ipv6pktinfo(int fd)
return 0;
}
#endif
/* Find the interface on which a TCP connection arrived, if possible, or zero otherwise. */
@@ -842,7 +814,6 @@ int tcp_interface(int fd, int af)
}
}
}
#ifdef HAVE_IPV6
else
{
/* Only the RFC-2292 API has the ability to find the interface for TCP connections,
@@ -874,7 +845,6 @@ int tcp_interface(int fd, int af)
}
}
}
#endif /* IPV6 */
#endif /* Linux */
return if_index;
@@ -904,7 +874,6 @@ static struct listener *create_listeners(union mysockaddr *addr, int do_tftp, in
tftpfd = make_sock(addr, SOCK_DGRAM, dienow);
addr->in.sin_port = save;
}
# ifdef HAVE_IPV6
else
{
short save = addr->in6.sin6_port;
@@ -912,7 +881,6 @@ static struct listener *create_listeners(union mysockaddr *addr, int do_tftp, in
tftpfd = make_sock(addr, SOCK_DGRAM, dienow);
addr->in6.sin6_port = save;
}
# endif
}
#endif
@@ -945,11 +913,10 @@ void create_wildcard_listeners(void)
l = create_listeners(&addr, !!option_bool(OPT_TFTP), 1);
#ifdef HAVE_IPV6
memset(&addr, 0, sizeof(addr));
# ifdef HAVE_SOCKADDR_SA_LEN
#ifdef HAVE_SOCKADDR_SA_LEN
addr.in6.sin6_len = sizeof(addr.in6);
# endif
#endif
addr.in6.sin6_family = AF_INET6;
addr.in6.sin6_addr = in6addr_any;
addr.in6.sin6_port = htons(daemon->port);
@@ -959,7 +926,6 @@ void create_wildcard_listeners(void)
l->next = l6;
else
l = l6;
#endif
daemon->listeners = l;
}
@@ -1159,7 +1125,6 @@ int random_sock(int family)
addr.in.sin_len = sizeof(struct sockaddr_in);
#endif
}
#ifdef HAVE_IPV6
else
{
addr.in6.sin6_addr = in6addr_any;
@@ -1168,7 +1133,6 @@ int random_sock(int family)
addr.in6.sin6_len = sizeof(struct sockaddr_in6);
#endif
}
#endif
if (bind(fd, (struct sockaddr *)&addr, sa_len(&addr)) == 0)
return fd;
@@ -1193,10 +1157,8 @@ int local_bind(int fd, union mysockaddr *addr, char *intname, unsigned int ifind
{
if (addr_copy.sa.sa_family == AF_INET)
addr_copy.in.sin_port = 0;
#ifdef HAVE_IPV6
else
addr_copy.in6.sin6_port = 0;
#endif
}
if (bind(fd, (struct sockaddr *)&addr_copy, sa_len(&addr_copy)) == -1)
@@ -1211,7 +1173,7 @@ int local_bind(int fd, union mysockaddr *addr, char *intname, unsigned int ifind
return setsockopt(fd, IPPROTO_IP, IP_UNICAST_IF, &ifindex_opt, sizeof(ifindex_opt)) == 0;
}
#endif
#if defined(HAVE_IPV6) && defined (IPV6_UNICAST_IF)
#if defined (IPV6_UNICAST_IF)
if (addr_copy.sa.sa_family == AF_INET6)
{
uint32_t ifindex_opt = htonl(ifindex);
@@ -1247,12 +1209,10 @@ static struct serverfd *allocate_sfd(union mysockaddr *addr, char *intname)
addr->in.sin_port == htons(0))
return NULL;
#ifdef HAVE_IPV6
if (addr->sa.sa_family == AF_INET6 &&
memcmp(&addr->in6.sin6_addr, &in6addr_any, sizeof(in6addr_any)) == 0 &&
addr->in6.sin6_port == htons(0))
return NULL;
#endif
}
if (intname && strlen(intname) != 0)
@@ -1315,7 +1275,7 @@ void pre_allocate_sfds(void)
#endif
if ((sfd = allocate_sfd(&addr, "")))
sfd->preallocated = 1;
#ifdef HAVE_IPV6
memset(&addr, 0, sizeof(addr));
addr.in6.sin6_family = AF_INET6;
addr.in6.sin6_addr = in6addr_any;
@@ -1325,7 +1285,6 @@ void pre_allocate_sfds(void)
#endif
if ((sfd = allocate_sfd(&addr, "")))
sfd->preallocated = 1;
#endif
}
for (srv = daemon->servers; srv; srv = srv->next)
@@ -1658,7 +1617,6 @@ int reload_servers(char *fname)
source_addr.in.sin_addr.s_addr = INADDR_ANY;
source_addr.in.sin_port = htons(daemon->query_port);
}
#ifdef HAVE_IPV6
else
{
int scope_index = 0;
@@ -1686,10 +1644,6 @@ int reload_servers(char *fname)
else
continue;
}
#else /* IPV6 */
else
continue;
#endif
add_update_server(SERV_FROM_RESOLV, &addr, &source_addr, NULL, NULL);
gotone = 1;