pppd: Handle SIGINT and SIGTERM during interrupted syscalls (#148)

[ppp.git] / pppd / sys-solaris.c

diff --git a/pppd/sys-solaris.c b/pppd/sys-solaris.c
index 93d90332e0d4f2116b17800970e082cf193640dd..a85c73301ed2b474ee644f170ff733714811306d 100644 (file)
--- a/pppd/sys-solaris.c
+++ b/pppd/sys-solaris.c
@@ -114,6 +114,7 @@
 #include <sys/dlpi.h>
 #include <sys/stat.h>
 #include <sys/mkdev.h>
+#include <sys/time.h>
 #include <net/if.h>
 #include <net/if_arp.h>
 #include <net/route.h>
@@ -166,7 +167,6 @@
 #define        UDP6_DEV_NAME   "/dev/udp6"
 #endif /* !defined(UDP6_DEV_NAME) && defined(SOL2) */
 
-static const char rcsid[] = RCSID;
 
 #if defined(SOL2)
 /*
@@ -189,6 +189,12 @@ static int ip6fd;          /* IP file descriptor */
 static int     ip6muxid = -1;  /* Multiplexer file descriptor */
 static int     if6_is_up = 0;  /* IPv6 interface has been marked up */
 
+#define IN6_SOCKADDR_FROM_EUI64(s, eui64) do { \
+       (s)->sin6_family = AF_INET6; \
+       (s)->sin6_addr.s6_addr32[0] = htonl(0xfe800000); \
+       eui64_copy(eui64, (s)->sin6_addr.s6_addr32[2]); \
+       } while(0)
+
 #define _IN6_LLX_FROM_EUI64(l, s, eui64, as) do {      \
        s->sin6_addr.s6_addr32[0] = htonl(as);  \
        eui64_copy(eui64, s->sin6_addr.s6_addr32[2]);   \
@@ -198,12 +204,20 @@ static int        if6_is_up = 0;  /* IPv6 interface has been marked up */
        l.lifr_addr = laddr;                    \
        } while (0)
 
+#define _IN6A_LLX_FROM_EUI64(s, eui64, as) do {        \
+       s->s6_addr32[0] = htonl(as);    \
+       eui64_copy(eui64, s->s6_addr32[2]);     \
+       } while (0)
+
 #define IN6_LLADDR_FROM_EUI64(l, s, eui64)  \
     _IN6_LLX_FROM_EUI64(l, s, eui64, 0xfe800000)
 
 #define IN6_LLTOKEN_FROM_EUI64(l, s, eui64) \
     _IN6_LLX_FROM_EUI64(l, s, eui64, 0)
 
+#define IN6A_LLADDR_FROM_EUI64(s, eui64)  \
+    _IN6A_LLX_FROM_EUI64(s, eui64, 0xfe800000)
+
 #endif /* defined(INET6) && defined(SOL2) */
 
 #if defined(INET6) && defined(SOL2)
@@ -238,6 +252,7 @@ static int  tty_npushed;
 static int     if_is_up;       /* Interface has been marked up */
 static u_int32_t remote_addr;          /* IP address of peer */
 static u_int32_t default_route_gateway;        /* Gateway for default route added */
+static eui64_t default_route_gateway6; /* Gateway for default IPv6 route added */
 static u_int32_t proxy_arp_addr;       /* Addr for proxy arp entry added */
 
 /* Prototypes for procedures local to this file. */
@@ -787,6 +802,8 @@ sys_cleanup()
        sifdown(0);
     if (default_route_gateway)
        cifdefaultroute(0, default_route_gateway, default_route_gateway);
+    if (default_route_gateway6.e32[0] != 0 || default_route_gateway6.e32[1] != 0)
+       cif6defaultroute(0, default_route_gateway6, default_route_gateway6);
     if (proxy_arp_addr)
        cifproxyarp(0, proxy_arp_addr);
 #if defined(SOL2)
@@ -1957,6 +1974,70 @@ cif6addr(u, o, h)
     return 1;
 }
 
+/*
+ * sif6defaultroute - assign a default route through the address given.
+ */
+int
+sif6defaultroute(u, l, g)
+    int u;
+    eui64_t l, g;
+{
+    struct {
+       struct rt_msghdr rtm;
+       struct sockaddr_in6 dst;
+       struct sockaddr_in6 gw;
+    } rmsg;
+    static int seq;
+    int rtsock;
+
+#if defined(__USLC__)
+    g = l;                     /* use the local address as gateway */
+#endif
+    memset(&rmsg, 0, sizeof(rmsg));
+
+    rmsg.rtm.rtm_msglen = sizeof (rmsg);
+    rmsg.rtm.rtm_version = RTM_VERSION;
+    rmsg.rtm.rtm_type = RTM_ADD;
+    rmsg.rtm.rtm_flags = RTF_GATEWAY;
+    rmsg.rtm.rtm_addrs = RTA_DST | RTA_GATEWAY;
+    rmsg.rtm.rtm_pid = getpid();
+    rmsg.rtm.rtm_seq = seq++;
+
+    rmsg.dst.sin6_family = AF_INET6;
+
+    rmsg.gw.sin6_family = AF_INET6;
+    IN6_SOCKADDR_FROM_EUI64(&rmsg.gw, g);
+
+    rtsock = socket(PF_ROUTE, SOCK_RAW, 0);
+
+    if (rtsock < 0) {
+       error("Can't add default route: %m");
+       return 0;
+    }
+
+    if (write(rtsock, &rmsg, sizeof(rmsg)) < 0)
+       error("Can't add default route: %m");
+
+    close(rtsock);
+
+    default_route_gateway6 = g;
+    return 1;
+}
+
+/*
+ * cif6defaultroute - delete a default route through the address given.
+ */
+int
+cif6defaultroute(u, l, g)
+    int u;
+    eui64_t l, g;
+{
+    /* No need to do this on Solaris; the kernel deletes the
+       route when the interface goes down. */
+    memset(&default_route_gateway6, 0, sizeof(default_route_gateway6));
+    return 1;
+}
+
 #endif /* defined(SOL2) && defined(INET6) */
 
 
@@ -2346,7 +2427,7 @@ dlpi_get_reply(fd, reply, expected_prim, maxlen)
     pfd.events = POLLIN | POLLPRI;
     do {
        n = poll(&pfd, 1, 1000);
-    } while (n == -1 && errno == EINTR);
+    } while (n == -1 && errno == EINTR && !got_sigterm);
     if (n <= 0)
        return -1;
 
@@ -2783,3 +2864,13 @@ get_pty(master_fdp, slave_fdp, slave_name, uid)
 
     return 1;
 }
+
+/********************************************************************
+ *
+ * get_time - Get current time, monotonic if possible.
+ */
+int
+get_time(struct timeval *tv)
+{
+    return gettimeofday(tv, NULL);
+}