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net: sync env ethaddr to device enetaddr in eth_init() 

In the previous enetaddr refactoring, the assumption with commit 56b555a644
was that the eth layer would handle the env -> device enetaddr syncing.
This was not the case as eth_initialize() is called only once and the sync
occurs there.  So make sure the eth_init() function does the env -> device
sync with every network init.

Reported-by: Andrzej Wolski <awolski@poczta.fm>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
This commit is contained in:
Mike Frysinger 2009-07-15 21:31:28 -04:00 committed by Ben Warren
parent 0ebf04c607
commit 86848a74c3
2 changed files with 24 additions and 30 deletions
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2
include/net.h
View File

@ -119,10 +119,10 @@ extern struct eth_device *eth_get_dev(void); /* get the current device MAC */
extern struct eth_device *eth_get_dev_by_name(char *devname); /* get device */
extern struct eth_device *eth_get_dev_by_index(int index); /* get dev @ index */
extern int eth_get_dev_index (void); /* get the device index */
extern void eth_set_enetaddr(int num, char* a); /* Set new MAC address */
extern void eth_parse_enetaddr(const char *addr, uchar *enetaddr);
extern int eth_getenv_enetaddr(char *name, uchar *enetaddr);
extern int eth_setenv_enetaddr(char *name, const uchar *enetaddr);
extern int eth_getenv_enetaddr_by_index(int index, uchar *enetaddr);
extern int eth_init(bd_t *bis); /* Initialize the device */
extern int eth_send(volatile void *packet, int length); /* Send a packet */

52
net/eth.c
View File

@ -53,6 +53,13 @@ int eth_setenv_enetaddr(char *name, const uchar *enetaddr)
return setenv(name, buf);
}
int eth_getenv_enetaddr_by_index(int index, uchar *enetaddr)
{
char enetvar[32];
sprintf(enetvar, index ? "eth%daddr" : "ethaddr", index);
return eth_getenv_enetaddr(enetvar, enetaddr);
}
#endif
#if defined(CONFIG_CMD_NET) && defined(CONFIG_NET_MULTI)
@ -180,7 +187,6 @@ int eth_register(struct eth_device* dev)
int eth_initialize(bd_t *bis)
{
char enetvar[32];
unsigned char env_enetaddr[6];
int eth_number = 0;
@ -221,8 +227,7 @@ int eth_initialize(bd_t *bis)
puts (" [PRIME]");
}
sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
eth_getenv_enetaddr(enetvar, env_enetaddr);
eth_getenv_enetaddr_by_index(eth_number, env_enetaddr);
if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
@ -259,31 +264,6 @@ int eth_initialize(bd_t *bis)
return eth_number;
}
void eth_set_enetaddr(int num, char *addr) {
struct eth_device *dev;
unsigned char enetaddr[6];
debug("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
if (!eth_devices)
return;
eth_parse_enetaddr(addr, enetaddr);
dev = eth_devices;
while(num-- > 0) {
dev = dev->next;
if (dev == eth_devices)
return;
}
debug("Setting new HW address on %s\n"
"New Address is %pM\n",
dev->name, enetaddr);
memcpy(dev->enetaddr, enetaddr, 6);
}
#ifdef CONFIG_MCAST_TFTP
/* Multicast.
* mcast_addr: multicast ipaddr from which multicast Mac is made
@ -332,13 +312,27 @@ u32 ether_crc (size_t len, unsigned char const *p)
int eth_init(bd_t *bis)
{
struct eth_device* old_current;
int eth_number;
struct eth_device *old_current, *dev;
if (!eth_current) {
puts ("No ethernet found.\n");
return -1;
}
/* Sync environment with network devices */
eth_number = 0;
dev = eth_devices;
do {
uchar env_enetaddr[6];
if (eth_getenv_enetaddr_by_index(eth_number, env_enetaddr))
memcpy(dev->enetaddr, env_enetaddr, 6);
++eth_number;
dev = dev->next;
} while (dev != eth_devices);
old_current = eth_current;
do {
debug("Trying %s\n", eth_current->name);