#if !defined(__GLIBC__) || __GLIBC__ >= 2
#include <asm/types.h> /* glibc 2 conflicts with linux/types.h */
+#include <asm/ioctls.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/route.h>
#include <sys/locks.h>
#endif
+#ifndef BOTHER
+#define BOTHER 0010000
+#endif
+struct termios2 {
+ unsigned int c_iflag;
+ unsigned int c_oflag;
+ unsigned int c_cflag;
+ unsigned int c_lflag;
+ unsigned char c_line;
+ unsigned char c_cc[19];
+ unsigned int c_ispeed;
+ unsigned int c_ospeed;
+};
+
#ifdef INET6
#ifndef _LINUX_IN6_H
/*
#ifdef B460800
{ 460800, B460800 },
#endif
+#ifdef B500000
+ { 500000, B500000 },
+#endif
+#ifdef B576000
+ { 576000, B576000 },
+#endif
#ifdef B921600
{ 921600, B921600 },
#endif
if (bps == speedp->speed_int)
return speedp->speed_val;
}
- warn("speed %d not supported", bps);
}
return 0;
}
if (stop_bits >= 2)
tios.c_cflag |= CSTOPB;
- speed = translate_speed(inspeed);
- if (speed) {
- cfsetospeed (&tios, speed);
- cfsetispeed (&tios, speed);
+ if (inspeed) {
+ speed = translate_speed(inspeed);
+ if (speed) {
+ cfsetospeed (&tios, speed);
+ cfsetispeed (&tios, speed);
+ speed = cfgetospeed(&tios);
+ }
+ baud_rate = baud_rate_of(speed);
}
-/*
- * We can't proceed if the serial port speed is B0,
- * since that implies that the serial port is disabled.
- */
else {
speed = cfgetospeed(&tios);
- if (speed == B0)
- fatal("Baud rate for %s is 0; need explicit baud rate", devnam);
+ baud_rate = baud_rate_of(speed);
}
while (tcsetattr(tty_fd, TCSAFLUSH, &tios) < 0 && !ok_error(errno))
if (errno != EINTR)
fatal("tcsetattr: %m (line %d)", __LINE__);
- baud_rate = baud_rate_of(speed);
+/* Most Linux architectures and drivers support arbitrary baud rate values via BOTHER */
+#ifdef TCGETS2
+ if (!baud_rate) {
+ struct termios2 tios2;
+ if (ioctl(tty_fd, TCGETS2, &tios2) == 0) {
+ if (inspeed) {
+ tios2.c_cflag &= ~CBAUD;
+ tios2.c_cflag |= BOTHER;
+ tios2.c_ispeed = inspeed;
+ tios2.c_ospeed = inspeed;
+#ifdef TCSETS2
+ if (ioctl(tty_fd, TCSETS2, &tios2) == 0)
+ baud_rate = inspeed;
+#endif
+ } else {
+ if ((tios2.c_cflag & CBAUD) == BOTHER && tios2.c_ospeed)
+ baud_rate = tios2.c_ospeed;
+ }
+ }
+ }
+#endif
+
+/*
+ * We can't proceed if the serial port baud rate is unknown,
+ * since that implies that the serial port is disabled.
+ */
+ if (!baud_rate) {
+ if (inspeed)
+ fatal("speed %d not supported", inspeed);
+ else
+ fatal("Baud rate for %s is 0; need explicit baud rate", devnam);
+ }
+
restore_term = 1;
}
*/
static int sif6addr_rtnetlink(unsigned int iface, eui64_t our_eui64, eui64_t his_eui64)
{
- struct msghdr msg;
- struct sockaddr_nl sa;
+ struct {
+ struct nlmsghdr nlh;
+ struct ifaddrmsg ifa;
+ struct {
+ struct rtattr rta;
+ struct in6_addr addr;
+ } addrs[2];
+ } nlreq;
+ struct {
+ struct nlmsghdr nlh;
+ struct nlmsgerr nlerr;
+ } nlresp;
+ struct sockaddr_nl nladdr;
struct iovec iov;
- struct nlmsghdr *nlmsg;
- struct ifaddrmsg *ifa;
- struct rtattr *local_rta;
- struct rtattr *remote_rta;
- char buf[NLMSG_LENGTH(sizeof(*ifa) + 2*RTA_LENGTH(sizeof(struct in6_addr)))];
- ssize_t nlmsg_len;
- struct nlmsgerr *errmsg;
+ struct msghdr msg;
+ ssize_t nlresplen;
int one;
int fd;
one = 1;
setsockopt(fd, SOL_NETLINK, NETLINK_CAP_ACK, &one, sizeof(one));
- memset(&sa, 0, sizeof(sa));
- sa.nl_family = AF_NETLINK;
- sa.nl_pid = 0;
- sa.nl_groups = 0;
+ memset(&nladdr, 0, sizeof(nladdr));
+ nladdr.nl_family = AF_NETLINK;
- if (bind(fd, (struct sockaddr *)&sa, sizeof(sa)) < 0) {
+ if (bind(fd, (struct sockaddr *)&nladdr, sizeof(nladdr)) < 0) {
error("sif6addr_rtnetlink: bind(AF_NETLINK): %m (line %d)", __LINE__);
close(fd);
return 0;
}
- memset(buf, 0, sizeof(buf));
-
- nlmsg = (struct nlmsghdr *)buf;
- nlmsg->nlmsg_len = sizeof(buf);
- nlmsg->nlmsg_type = RTM_NEWADDR;
- nlmsg->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | NLM_F_EXCL | NLM_F_CREATE;
- nlmsg->nlmsg_seq = 1;
- nlmsg->nlmsg_pid = 0;
-
- ifa = NLMSG_DATA(nlmsg);
- ifa->ifa_family = AF_INET6;
- ifa->ifa_prefixlen = 128;
- ifa->ifa_flags = IFA_F_NODAD | IFA_F_PERMANENT;
- ifa->ifa_scope = RT_SCOPE_LINK;
- ifa->ifa_index = iface;
-
- local_rta = IFA_RTA(ifa);
- local_rta->rta_len = RTA_LENGTH(sizeof(struct in6_addr));
- local_rta->rta_type = IFA_LOCAL;
- IN6_LLADDR_FROM_EUI64(*(struct in6_addr *)RTA_DATA(local_rta), our_eui64);
-
- remote_rta = (struct rtattr *)((char *)local_rta + local_rta->rta_len);
- remote_rta->rta_len = RTA_LENGTH(sizeof(struct in6_addr));
- remote_rta->rta_type = IFA_ADDRESS;
- IN6_LLADDR_FROM_EUI64(*(struct in6_addr *)RTA_DATA(remote_rta), his_eui64);
-
- memset(&sa, 0, sizeof(sa));
- sa.nl_family = AF_NETLINK;
- sa.nl_pid = 0;
- sa.nl_groups = 0;
+ memset(&nlreq, 0, sizeof(nlreq));
+ nlreq.nlh.nlmsg_len = sizeof(nlreq);
+ nlreq.nlh.nlmsg_type = RTM_NEWADDR;
+ nlreq.nlh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | NLM_F_EXCL | NLM_F_CREATE;
+ nlreq.ifa.ifa_family = AF_INET6;
+ nlreq.ifa.ifa_prefixlen = 128;
+ nlreq.ifa.ifa_flags = IFA_F_NODAD | IFA_F_PERMANENT;
+ nlreq.ifa.ifa_scope = RT_SCOPE_LINK;
+ nlreq.ifa.ifa_index = iface;
+ nlreq.addrs[0].rta.rta_len = sizeof(nlreq.addrs[0]);
+ nlreq.addrs[0].rta.rta_type = IFA_LOCAL;
+ IN6_LLADDR_FROM_EUI64(nlreq.addrs[0].addr, our_eui64);
+ nlreq.addrs[1].rta.rta_len = sizeof(nlreq.addrs[1]);
+ nlreq.addrs[1].rta.rta_type = IFA_ADDRESS;
+ IN6_LLADDR_FROM_EUI64(nlreq.addrs[1].addr, his_eui64);
+
+ memset(&nladdr, 0, sizeof(nladdr));
+ nladdr.nl_family = AF_NETLINK;
memset(&iov, 0, sizeof(iov));
- iov.iov_base = nlmsg;
- iov.iov_len = nlmsg->nlmsg_len;
+ iov.iov_base = &nlreq;
+ iov.iov_len = sizeof(nlreq);
memset(&msg, 0, sizeof(msg));
- msg.msg_name = &sa;
- msg.msg_namelen = sizeof(sa);
+ msg.msg_name = &nladdr;
+ msg.msg_namelen = sizeof(nladdr);
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
- msg.msg_control = NULL;
- msg.msg_controllen = 0;
- msg.msg_flags = 0;
if (sendmsg(fd, &msg, 0) < 0) {
error("sif6addr_rtnetlink: sendmsg(RTM_NEWADDR/NLM_F_CREATE): %m (line %d)", __LINE__);
}
memset(&iov, 0, sizeof(iov));
- iov.iov_base = buf;
- iov.iov_len = sizeof(buf);
+ iov.iov_base = &nlresp;
+ iov.iov_len = sizeof(nlresp);
memset(&msg, 0, sizeof(msg));
- msg.msg_name = NULL;
- msg.msg_namelen = 0;
+ msg.msg_name = &nladdr;
+ msg.msg_namelen = sizeof(nladdr);
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
- msg.msg_control = NULL;
- msg.msg_controllen = 0;
- msg.msg_flags = 0;
- nlmsg_len = recvmsg(fd, &msg, 0);
+ nlresplen = recvmsg(fd, &msg, 0);
- if (nlmsg_len < 0) {
+ if (nlresplen < 0) {
error("sif6addr_rtnetlink: recvmsg(NLM_F_ACK): %m (line %d)", __LINE__);
close(fd);
return 0;
close(fd);
- if ((size_t)nlmsg_len < sizeof(*nlmsg)) {
- error("sif6addr_rtnetlink: recvmsg(NLM_F_ACK): Packet too short (line %d)", __LINE__);
+ if (nladdr.nl_family != AF_NETLINK) {
+ error("sif6addr_rtnetlink: recvmsg(NLM_F_ACK): Not a netlink packet (line %d)", __LINE__);
return 0;
}
- nlmsg = (struct nlmsghdr *)buf;
-
- /* acknowledgment packet for NLM_F_ACK is NLMSG_ERROR */
- if (nlmsg->nlmsg_type != NLMSG_ERROR) {
- error("sif6addr_rtnetlink: recvmsg(NLM_F_ACK): Not an acknowledgment packet (line %d)", __LINE__);
+ if ((size_t)nlresplen != sizeof(nlresp) || nlresp.nlh.nlmsg_len < sizeof(nlresp)) {
+ error("sif6addr_rtnetlink: recvmsg(NLM_F_ACK): Acknowledgment netlink packet too short (line %d)", __LINE__);
return 0;
}
- if ((size_t)nlmsg_len < NLMSG_LENGTH(sizeof(*errmsg))) {
- error("sif6addr_rtnetlink: recvmsg(NLM_F_ACK): Packet too short (line %d)", __LINE__);
+ /* acknowledgment packet for NLM_F_ACK is NLMSG_ERROR */
+ if (nlresp.nlh.nlmsg_type != NLMSG_ERROR) {
+ error("sif6addr_rtnetlink: recvmsg(NLM_F_ACK): Not an acknowledgment netlink packet (line %d)", __LINE__);
return 0;
}
- errmsg = NLMSG_DATA(nlmsg);
-
/* error == 0 indicates success, negative value is errno code */
- if (errmsg->error != 0) {
- error("sif6addr_rtnetlink: %s (line %d)", strerror(-errmsg->error), __LINE__);
+ if (nlresp.nlerr.error != 0) {
+ error("sif6addr_rtnetlink: %s (line %d)", strerror(-nlresp.nlerr.error), __LINE__);
return 0;
}
projects / ppp.git / blobdiff