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yaml
---
r: 1287
b: refs/heads/master
c: 7c00c31
h: refs/heads/master
i:
  1285: 5fa1613
  1283: 8f3ba36
  1279: 584c48e
v: v3
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Jeff Dike authored and Linus Torvalds committed May 20, 2005
1 parent 32fa8e4 commit 0833747
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Showing 3 changed files with 17 additions and 36 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 060e352236ece3325a684c72817fbacdac597574
refs/heads/master: 7c00c31fc0f003363773121a0ac6f4e5b128e879
4 changes: 1 addition & 3 deletions trunk/arch/um/drivers/mcast_kern.c
Original file line number Diff line number Diff line change
Expand Up @@ -73,7 +73,6 @@ int mcast_setup(char *str, char **mac_out, void *data)
struct mcast_init *init = data;
char *port_str = NULL, *ttl_str = NULL, *remain;
char *last;
int n;

*init = ((struct mcast_init)
{ .addr = "239.192.168.1",
Expand All @@ -89,13 +88,12 @@ int mcast_setup(char *str, char **mac_out, void *data)
}

if(port_str != NULL){
n = simple_strtoul(port_str, &last, 10);
init->port = simple_strtoul(port_str, &last, 10);
if((*last != '\0') || (last == port_str)){
printk(KERN_ERR "mcast_setup - Bad port : '%s'\n",
port_str);
return(0);
}
init->port = htons(n);
}

if(ttl_str != NULL){
Expand Down
47 changes: 15 additions & 32 deletions trunk/arch/um/drivers/mcast_user.c
Original file line number Diff line number Diff line change
Expand Up @@ -38,7 +38,7 @@ static struct sockaddr_in *new_addr(char *addr, unsigned short port)
}
sin->sin_family = AF_INET;
sin->sin_addr.s_addr = in_aton(addr);
sin->sin_port = port;
sin->sin_port = htons(port);
return(sin);
}

Expand All @@ -55,55 +55,46 @@ static int mcast_open(void *data)
struct mcast_data *pri = data;
struct sockaddr_in *sin = pri->mcast_addr;
struct ip_mreq mreq;
int fd, yes = 1;
int fd = -EINVAL, yes = 1, err = -EINVAL;;


if ((sin->sin_addr.s_addr == 0) || (sin->sin_port == 0)) {
fd = -EINVAL;
if ((sin->sin_addr.s_addr == 0) || (sin->sin_port == 0))
goto out;
}

fd = socket(AF_INET, SOCK_DGRAM, 0);

if (fd < 0){
printk("mcast_open : data socket failed, errno = %d\n",
errno);
fd = -ENOMEM;
fd = -errno;
goto out;
}

if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes)) < 0) {
printk("mcast_open: SO_REUSEADDR failed, errno = %d\n",
errno);
os_close_file(fd);
fd = -EINVAL;
goto out;
goto out_close;
}

/* set ttl according to config */
if (setsockopt(fd, SOL_IP, IP_MULTICAST_TTL, &pri->ttl,
sizeof(pri->ttl)) < 0) {
printk("mcast_open: IP_MULTICAST_TTL failed, error = %d\n",
errno);
os_close_file(fd);
fd = -EINVAL;
goto out;
goto out_close;
}

/* set LOOP, so data does get fed back to local sockets */
if (setsockopt(fd, SOL_IP, IP_MULTICAST_LOOP, &yes, sizeof(yes)) < 0) {
printk("mcast_open: IP_MULTICAST_LOOP failed, error = %d\n",
errno);
os_close_file(fd);
fd = -EINVAL;
goto out;
goto out_close;
}

/* bind socket to mcast address */
if (bind(fd, (struct sockaddr *) sin, sizeof(*sin)) < 0) {
printk("mcast_open : data bind failed, errno = %d\n", errno);
os_close_file(fd);
fd = -EINVAL;
goto out;
goto out_close;
}

/* subscribe to the multicast group */
Expand All @@ -117,12 +108,15 @@ static int mcast_open(void *data)
"interface on the host.\n");
printk("eth0 should be configured in order to use the "
"multicast transport.\n");
os_close_file(fd);
fd = -EINVAL;
goto out_close;
}

out:
return(fd);
return fd;

out_close:
os_close_file(fd);
return err;
}

static void mcast_close(int fd, void *data)
Expand Down Expand Up @@ -164,14 +158,3 @@ struct net_user_info mcast_user_info = {
.delete_address = NULL,
.max_packet = MAX_PACKET - ETH_HEADER_OTHER
};

/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/

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