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Diffstat (limited to 'erts/emulator/drivers/common')
-rw-r--r--erts/emulator/drivers/common/inet_drv.c89
1 files changed, 71 insertions, 18 deletions
diff --git a/erts/emulator/drivers/common/inet_drv.c b/erts/emulator/drivers/common/inet_drv.c
index b3c60f838d..5196eb51c6 100644
--- a/erts/emulator/drivers/common/inet_drv.c
+++ b/erts/emulator/drivers/common/inet_drv.c
@@ -268,14 +268,13 @@ static BOOL (WINAPI *fpSetHandleInformation)(HANDLE,DWORD,DWORD);
#define sock_htonl(x) htonl((x))
#define sock_send(s,buf,len,flag) send((s),(buf),(len),(flag))
#define sock_sendv(s, vec, size, np, flag) \
- WSASend((s),(WSABUF*)(vec),\
- (size),(np),(flag),NULL,NULL)
+ WSASend((s),(WSABUF*)(vec),(size),(np),(flag),NULL,NULL)
#define sock_recv(s,buf,len,flag) recv((s),(buf),(len),(flag))
#define sock_recvfrom(s,buf,blen,flag,addr,alen) \
- recvfrom((s),(buf),(blen),(flag),(addr),(alen))
+ recvfrom((s),(buf),(blen),(flag),(addr),(alen))
#define sock_sendto(s,buf,blen,flag,addr,alen) \
- sendto((s),(buf),(blen),(flag),(addr),(alen))
+ sendto((s),(buf),(blen),(flag),(addr),(alen))
#define sock_hostname(buf, len) gethostname((buf), (len))
#define sock_getservbyname(name,proto) getservbyname((name),(proto))
@@ -360,9 +359,9 @@ static ssize_t writev_fallback(int fd, const struct iovec *iov, int iovcnt, int
#define sock_accept(s, addr, len) accept((s), (addr), (len))
#define sock_send(s,buf,len,flag) inet_send((s),(buf),(len),(flag))
#define sock_sendto(s,buf,blen,flag,addr,alen) \
- sendto((s),(buf),(blen),(flag),(addr),(alen))
+ sendto((s),(buf),(blen),(flag),(addr),(alen))
#define sock_sendv(s, vec, size, np, flag) \
- (*(np) = writev_fallback((s), (struct iovec*)(vec), (size), (*(np))))
+ (*(np) = writev_fallback((s), (struct iovec*)(vec), (size), (*(np))))
#define sock_sendmsg(s,msghdr,flag) sendmsg((s),(msghdr),(flag))
#define sock_open(af, type, proto) socket((af), (type), (proto))
@@ -1178,6 +1177,7 @@ static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData, unsigned int,
static void tcp_inet_timeout(ErlDrvData);
static void tcp_inet_process_exit(ErlDrvData, ErlDrvMonitor *);
static void inet_stop_select(ErlDrvEvent, void*);
+static void inet_emergency_close(ErlDrvData);
#ifdef __WIN32__
static void tcp_inet_event(ErlDrvData, ErlDrvEvent);
static void find_dynamic_functions(void);
@@ -1288,7 +1288,8 @@ static struct erl_drv_entry tcp_inet_driver_entry =
ERL_DRV_FLAG_USE_PORT_LOCKING|ERL_DRV_FLAG_SOFT_BUSY,
NULL,
tcp_inet_process_exit,
- inet_stop_select
+ inet_stop_select,
+ inet_emergency_close
};
@@ -1341,7 +1342,8 @@ static struct erl_drv_entry udp_inet_driver_entry =
ERL_DRV_FLAG_USE_PORT_LOCKING,
NULL,
NULL,
- inet_stop_select
+ inet_stop_select,
+ inet_emergency_close
};
#endif
@@ -1375,7 +1377,8 @@ static struct erl_drv_entry sctp_inet_driver_entry =
ERL_DRV_FLAG_USE_PORT_LOCKING,
NULL,
NULL, /* process_exit */
- inet_stop_select
+ inet_stop_select,
+ inet_emergency_close
};
#endif
@@ -1421,7 +1424,7 @@ static int packet_inet_input(udp_descriptor* udesc, HANDLE event);
static int packet_inet_output(udp_descriptor* udesc, HANDLE event);
#endif
-/* convert descriptor poiner to inet_descriptor pointer */
+/* convert descriptor pointer to inet_descriptor pointer */
#define INETP(d) (&(d)->inet)
#ifdef __OSE__
@@ -4727,6 +4730,36 @@ static char* sockaddr_to_buf(struct sockaddr* addr, char* ptr, char* end)
return NULL;
}
+/* sockaddr_bufsz_need
+ * Returns the number of bytes needed to store the information
+ * through sockaddr_to_buf
+ */
+
+static size_t sockaddr_bufsz_need(struct sockaddr* addr)
+{
+ if (addr->sa_family == AF_INET || addr->sa_family == 0) {
+ return 1 + sizeof(struct in_addr);
+ }
+#if defined(HAVE_IN6) && defined(AF_INET6)
+ else if (addr->sa_family == AF_INET6) {
+ return 1 + sizeof(struct in6_addr);
+ }
+#endif
+#if defined(AF_LINK)
+ if (addr->sa_family == AF_LINK) {
+ struct sockaddr_dl *sdl_p = (struct sockaddr_dl*) addr;
+ return 2 + sdl_p->sdl_alen;
+ }
+#endif
+#if defined(AF_PACKET) && defined(HAVE_NETPACKET_PACKET_H)
+ else if(addr->sa_family == AF_PACKET) {
+ struct sockaddr_ll *sll_p = (struct sockaddr_ll*) addr;
+ return 2 + sll_p->sll_halen;
+ }
+#endif
+ return 0;
+}
+
static char* buf_to_sockaddr(char* ptr, char* end, struct sockaddr* addr)
{
buf_check(ptr,end,1);
@@ -5805,6 +5838,11 @@ done:
}
#elif defined(HAVE_GETIFADDRS)
+#ifdef DEBUG
+#define GETIFADDRS_BUFSZ (1)
+#else
+#define GETIFADDRS_BUFSZ (512)
+#endif
static ErlDrvSSizeT inet_ctl_getifaddrs(inet_descriptor* desc_p,
char **rbuf_pp, ErlDrvSizeT rsize)
@@ -5815,15 +5853,15 @@ static ErlDrvSSizeT inet_ctl_getifaddrs(inet_descriptor* desc_p,
char *buf_p;
char *buf_alloc_p;
- buf_size = 512;
- buf_alloc_p = ALLOC(buf_size);
+ buf_size = GETIFADDRS_BUFSZ;
+ buf_alloc_p = ALLOC(GETIFADDRS_BUFSZ);
buf_p = buf_alloc_p;
# define BUF_ENSURE(Size) \
do { \
int NEED_, GOT_ = buf_p - buf_alloc_p; \
NEED_ = GOT_ + (Size); \
if (NEED_ > buf_size) { \
- buf_size = NEED_ + 512; \
+ buf_size = NEED_ + GETIFADDRS_BUFSZ; \
buf_alloc_p = REALLOC(buf_alloc_p, buf_size); \
buf_p = buf_alloc_p + GOT_; \
} \
@@ -5836,7 +5874,7 @@ static ErlDrvSSizeT inet_ctl_getifaddrs(inet_descriptor* desc_p,
while (! (P_ = sockaddr_to_buf((sa), buf_p, \
buf_alloc_p+buf_size))) { \
int GOT_ = buf_p - buf_alloc_p; \
- buf_size += 512; \
+ buf_size += GETIFADDRS_BUFSZ; \
buf_alloc_p = REALLOC(buf_alloc_p, buf_size); \
buf_p = buf_alloc_p + GOT_; \
} \
@@ -5893,10 +5931,11 @@ static ErlDrvSSizeT inet_ctl_getifaddrs(inet_descriptor* desc_p,
|| ifa_p->ifa_addr->sa_family == AF_PACKET
#endif
) {
- char *bp = buf_p;
- BUF_ENSURE(1);
- SOCKADDR_TO_BUF(INET_IFOPT_HWADDR, ifa_p->ifa_addr);
- if (buf_p - bp < 4) buf_p = bp; /* Empty hwaddr */
+ size_t need = sockaddr_bufsz_need(ifa_p->ifa_addr);
+ if (need > 3) {
+ BUF_ENSURE(1 + need);
+ SOCKADDR_TO_BUF(INET_IFOPT_HWADDR, ifa_p->ifa_addr);
+ }
}
#endif
}
@@ -5911,6 +5950,7 @@ static ErlDrvSSizeT inet_ctl_getifaddrs(inet_descriptor* desc_p,
return buf_size;
# undef BUF_ENSURE
}
+#undef GETIFADDRS_BUFSZ
#else
@@ -8215,6 +8255,19 @@ static void inet_stop(inet_descriptor* desc)
FREE(desc);
}
+static void inet_emergency_close(ErlDrvData data)
+{
+ /* valid for any (UDP, TCP or SCTP) descriptor */
+ tcp_descriptor* tcp_desc = (tcp_descriptor*)data;
+ inet_descriptor* desc = INETP(tcp_desc);
+ DEBUGF(("inet_emergency_close(%ld) {s=%d\r\n",
+ (long)desc->port, desc->s));
+ if (desc->s != INVALID_SOCKET) {
+ sock_close(desc->s);
+ }
+}
+
+
static void set_default_msgq_limits(ErlDrvPort port)
{
ErlDrvSizeT q_high = INET_HIGH_MSGQ_WATERMARK;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-20 11:00:12 +0000