dnsmasq: various house-keeping updates
* Add Authoritative DNS and IPSET to full variant * Remove some bloat from IPSET support * Reintroduce "DHCP no address warning"-patch Signed-off-by: Steven Barth <steven@midlink.org> SVN-Revision: 41246v19.07.3_mercusys_ac12_duma
Steven Barth
10 years ago
parent
132cbe5e29
commit
495b237cc4
@ -0,0 +1,47 @@
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--- a/src/dhcp.c
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+++ b/src/dhcp.c
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@@ -146,7 +146,7 @@ void dhcp_packet(time_t now, int pxe_fd)
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struct iovec iov;
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ssize_t sz;
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int iface_index = 0, unicast_dest = 0, is_inform = 0;
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- struct in_addr iface_addr;
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+ struct in_addr iface_addr, *addrp = NULL;
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struct iface_param parm;
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#ifdef HAVE_LINUX_NETWORK
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struct arpreq arp_req;
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@@ -272,11 +272,9 @@ void dhcp_packet(time_t now, int pxe_fd)
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{
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ifr.ifr_addr.sa_family = AF_INET;
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if (ioctl(daemon->dhcpfd, SIOCGIFADDR, &ifr) != -1 )
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- iface_addr = ((struct sockaddr_in *) &ifr.ifr_addr)->sin_addr;
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- else
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{
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- my_syslog(MS_DHCP | LOG_WARNING, _("DHCP packet received on %s which has no address"), ifr.ifr_name);
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- return;
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+ addrp = &iface_addr;
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+ iface_addr = ((struct sockaddr_in *) &ifr.ifr_addr)->sin_addr;
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}
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for (tmp = daemon->dhcp_except; tmp; tmp = tmp->next)
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@@ -295,7 +293,7 @@ void dhcp_packet(time_t now, int pxe_fd)
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parm.relay_local.s_addr = 0;
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parm.ind = iface_index;
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- if (!iface_check(AF_INET, (struct all_addr *)&iface_addr, ifr.ifr_name, NULL))
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+ if (!iface_check(AF_INET, (struct all_addr *)addrp, ifr.ifr_name, NULL))
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{
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/* If we failed to match the primary address of the interface, see if we've got a --listen-address
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for a secondary */
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@@ -315,6 +313,12 @@ void dhcp_packet(time_t now, int pxe_fd)
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complete_context(match.addr, iface_index, NULL, match.netmask, match.broadcast, &parm);
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}
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+ if (!addrp)
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+ {
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+ my_syslog(MS_DHCP | LOG_WARNING, _("DHCP packet received on %s which has no address"), ifr.ifr_name);
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+ return;
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+ }
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+
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if (!iface_enumerate(AF_INET, &parm, complete_context))
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return;
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@ -0,0 +1,110 @@
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--- a/src/ipset.c
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+++ b/src/ipset.c
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@@ -22,7 +22,6 @@
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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-#include <sys/utsname.h>
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#include <arpa/inet.h>
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#include <linux/version.h>
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#include <linux/netlink.h>
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@@ -72,7 +71,7 @@ struct my_nfgenmsg {
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#define NL_ALIGN(len) (((len)+3) & ~(3))
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static const struct sockaddr_nl snl = { .nl_family = AF_NETLINK };
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-static int ipset_sock, old_kernel;
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+static int ipset_sock;
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static char *buffer;
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static inline void add_attr(struct nlmsghdr *nlh, uint16_t type, size_t len, const void *data)
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@@ -87,25 +86,7 @@ static inline void add_attr(struct nlmsg
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void ipset_init(void)
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{
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- struct utsname utsname;
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- int version;
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- char *split;
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-
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- if (uname(&utsname) < 0)
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- die(_("failed to find kernel version: %s"), NULL, EC_MISC);
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-
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- split = strtok(utsname.release, ".");
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- version = (split ? atoi(split) : 0);
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- split = strtok(NULL, ".");
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- version = version * 256 + (split ? atoi(split) : 0);
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- split = strtok(NULL, ".");
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- version = version * 256 + (split ? atoi(split) : 0);
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- old_kernel = (version < KERNEL_VERSION(2,6,32));
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-
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- if (old_kernel && (ipset_sock = socket(AF_INET, SOCK_RAW, IPPROTO_RAW)) != -1)
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- return;
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-
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- if (!old_kernel &&
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+ if (
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(buffer = safe_malloc(BUFF_SZ)) &&
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(ipset_sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER)) != -1 &&
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(bind(ipset_sock, (struct sockaddr *)&snl, sizeof(snl)) != -1))
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@@ -168,62 +149,16 @@ static int new_add_to_ipset(const char *
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}
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-static int old_add_to_ipset(const char *setname, const struct all_addr *ipaddr, int remove)
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-{
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- socklen_t size;
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- struct ip_set_req_adt_get {
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- unsigned op;
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- unsigned version;
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- union {
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- char name[IPSET_MAXNAMELEN];
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- uint16_t index;
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- } set;
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- char typename[IPSET_MAXNAMELEN];
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- } req_adt_get;
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- struct ip_set_req_adt {
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- unsigned op;
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- uint16_t index;
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- uint32_t ip;
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- } req_adt;
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-
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- if (strlen(setname) >= sizeof(req_adt_get.set.name))
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- {
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- errno = ENAMETOOLONG;
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- return -1;
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- }
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-
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- req_adt_get.op = 0x10;
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- req_adt_get.version = 3;
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- strcpy(req_adt_get.set.name, setname);
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- size = sizeof(req_adt_get);
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- if (getsockopt(ipset_sock, SOL_IP, 83, &req_adt_get, &size) < 0)
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- return -1;
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- req_adt.op = remove ? 0x102 : 0x101;
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- req_adt.index = req_adt_get.set.index;
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- req_adt.ip = ntohl(ipaddr->addr.addr4.s_addr);
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- if (setsockopt(ipset_sock, SOL_IP, 83, &req_adt, sizeof(req_adt)) < 0)
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- return -1;
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-
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- return 0;
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-}
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-
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-
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-
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int add_to_ipset(const char *setname, const struct all_addr *ipaddr, int flags, int remove)
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{
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int af = AF_INET;
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#ifdef HAVE_IPV6
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if (flags & F_IPV6)
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- {
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af = AF_INET6;
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- /* old method only supports IPv4 */
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- if (old_kernel)
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- return -1;
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- }
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#endif
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- return old_kernel ? old_add_to_ipset(setname, ipaddr, remove) : new_add_to_ipset(setname, ipaddr, af, remove);
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+ return new_add_to_ipset(setname, ipaddr, af, remove);
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}
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#endif
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