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pxe: add ipappend support

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Add ipappend support to pass network device information to the kernel.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
This commit is contained in:
Rob Herring 2012-12-02 21:00:29 -06:00 committed by Joe Hershberger
parent 58d9ff936f
commit 98f646764d
1 changed files with 44 additions and 3 deletions
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47
common/cmd_pxe.c
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@ -452,6 +452,7 @@ struct pxe_label {
char *append;
char *initrd;
char *fdt;
int ipappend;
int attempted;
int localboot;
int localboot_val;
@ -585,7 +586,11 @@ static int label_boot(struct pxe_label *label)
{
char *bootm_argv[] = { "bootm", NULL, NULL, NULL, NULL };
char initrd_str[22];
char mac_str[29] = "";
char ip_str[68] = "";
char *bootargs;
int bootm_argc = 3;
int len = 0;
label_print(label);
@ -624,9 +629,39 @@ static int label_boot(struct pxe_label *label)
return 1;
}
if (label->append) {
setenv("bootargs", label->append);
printf("append: %s\n", label->append);
if (label->ipappend & 0x1) {
sprintf(ip_str, " ip=%s:%s:%s:%s",
getenv("ipaddr"), getenv("serverip"),
getenv("gatewayip"), getenv("netmask"));
len += strlen(ip_str);
}
if (label->ipappend & 0x2) {
int err;
strcpy(mac_str, " BOOTIF=");
err = format_mac_pxe(mac_str + 8, sizeof(mac_str) - 8);
if (err < 0)
mac_str[0] = '\0';
len += strlen(mac_str);
}
if (label->append)
len += strlen(label->append);
if (len) {
bootargs = malloc(len + 1);
if (!bootargs)
return 1;
bootargs[0] = '\0';
if (label->append)
strcpy(bootargs, label->append);
strcat(bootargs, ip_str);
strcat(bootargs, mac_str);
setenv("bootargs", bootargs);
printf("append: %s\n", bootargs);
free(bootargs);
}
bootm_argv[1] = getenv("kernel_addr_r");
@ -689,6 +724,7 @@ enum token_type {
T_INCLUDE,
T_FDT,
T_ONTIMEOUT,
T_IPAPPEND,
T_INVALID
};
@ -718,6 +754,7 @@ static const struct token keywords[] = {
{"include", T_INCLUDE},
{"fdt", T_FDT},
{"ontimeout", T_ONTIMEOUT,},
{"ipappend", T_IPAPPEND,},
{NULL, T_INVALID}
};
@ -1109,6 +1146,10 @@ static int parse_label(char **c, struct pxe_menu *cfg)
err = parse_integer(c, &label->localboot_val);
break;
case T_IPAPPEND:
err = parse_integer(c, &label->ipappend);
break;
case T_EOL:
break;