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import of dnsmasq-2.31.tar.gz

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This commit is contained in:
Simon Kelley
2006-05-06 14:13:33 +01:00
parent 26d0dbaf24
commit 7cebd20fe7
32 changed files with 2294 additions and 2141 deletions
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53
src/netlink.c
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@@ -48,8 +48,14 @@ void netlink_init(struct daemon *daemon)
}
if (daemon->netlinkfd == -1)
die(_("cannot create RTnetlink socket: %s"), NULL);
die(_("cannot create netlink socket: %s"), NULL);
else
{
int flags = fcntl(daemon->netlinkfd, F_GETFD);
if (flags != -1)
fcntl(daemon->netlinkfd, F_SETFD, flags | FD_CLOEXEC);
}
iov.iov_len = 200;
iov.iov_base = safe_malloc(iov.iov_len);
}
@@ -114,7 +120,7 @@ int iface_enumerate(struct daemon *daemon, void *parm, int (*ipv4_callback)(), i
again:
req.nlh.nlmsg_len = sizeof(req);
req.nlh.nlmsg_type = RTM_GETADDR;
req.nlh.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST;
req.nlh.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST | NLM_F_ACK;
req.nlh.nlmsg_pid = 0;
req.nlh.nlmsg_seq = ++seq;
req.g.rtgen_family = family;
@@ -215,7 +221,7 @@ static void nl_err(struct nlmsghdr *h)
{
struct nlmsgerr *err = NLMSG_DATA(h);
if (err->error != 0)
syslog(LOG_ERR, _("RTnetlink returns error: %s"), strerror(-(err->error)));
syslog(LOG_ERR, _("netlink returns error: %s"), strerror(-(err->error)));
}
/* We arrange to receive netlink multicast messages whenever the network route is added.
@@ -234,45 +240,6 @@ static void nl_routechange(struct daemon *daemon, struct nlmsghdr *h)
&daemon->srv_save->addr.sa, sa_len(&daemon->srv_save->addr)) == -1 && retry_send());
}
}
void arp_inject(int fd, struct in_addr ip_addr, int iface,
unsigned char *mac, unsigned int mac_len)
{
struct sockaddr_nl addr;
struct {
struct nlmsghdr nlh;
struct ndmsg m;
struct rtattr addr_attr;
struct in_addr addr;
struct rtattr ll_attr;
char mac[DHCP_CHADDR_MAX];
} req;
memset(&req, 0, sizeof(req));
memset(&addr, 0, sizeof(addr));
addr.nl_family = AF_NETLINK;
req.nlh.nlmsg_len = sizeof(req);
req.nlh.nlmsg_type = RTM_NEWNEIGH;
req.nlh.nlmsg_flags = NLM_F_REQUEST | NLM_F_REPLACE | NLM_F_CREATE;
req.m.ndm_family = AF_INET;
req.m.ndm_ifindex = iface;
req.m.ndm_state = NUD_REACHABLE;
req.addr_attr.rta_type = NDA_DST;
req.addr_attr.rta_len = RTA_LENGTH(sizeof(struct in_addr));
req.addr = ip_addr;
req.ll_attr.rta_type = NDA_LLADDR;
req.ll_attr.rta_len = RTA_LENGTH(mac_len);
memcpy(req.mac, mac, mac_len);
while(sendto(fd, (void *)&req, sizeof(req), 0, (struct sockaddr *)&addr, sizeof(addr)) == -1 &&
retry_send());
}
#endif