diff options
| -rw-r--r-- | Documentation/nfsroot.txt | 1 | ||||
| -rw-r--r-- | net/ipv4/ipconfig.c | 22 |
2 files changed, 19 insertions, 4 deletions
diff --git a/Documentation/nfsroot.txt b/Documentation/nfsroot.txt index c86dd38e2281..31b329172343 100644 --- a/Documentation/nfsroot.txt +++ b/Documentation/nfsroot.txt @@ -145,6 +145,7 @@ ip=<client-ip>:<server-ip>:<gw-ip>:<netmask>:<hostname>:<device>:<autoconf> this option. off or none: don't use autoconfiguration + (do static IP assignment instead) on or any: use any protocol available in the kernel (default) dhcp: use DHCP diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c index 56a675734ea5..b8f7763b2261 100644 --- a/net/ipv4/ipconfig.c +++ b/net/ipv4/ipconfig.c @@ -1404,8 +1404,7 @@ static int __init ic_proto_name(char *name) return 1; } if (!strcmp(name, "off") || !strcmp(name, "none")) { - ic_enable = 0; - return 1; + return 0; } #ifdef CONFIG_IP_PNP_DHCP else if (!strcmp(name, "dhcp")) { @@ -1442,10 +1441,22 @@ static int __init ip_auto_config_setup(char *addrs) ic_set_manually = 1; ic_enable = 1; + /* + * If any dhcp, bootp etc options are set, leave autoconfig on + * and skip the below static IP processing. + */ if (ic_proto_name(addrs)) return 1; - /* Parse the whole string */ + /* If no static IP is given, turn off autoconfig and bail. */ + if (*addrs == 0 || + strcmp(addrs, "off") == 0 || + strcmp(addrs, "none") == 0) { + ic_enable = 0; + return 1; + } + + /* Parse string for static IP assignment. */ ip = addrs; while (ip && *ip) { if ((cp = strchr(ip, ':'))) @@ -1483,7 +1494,10 @@ static int __init ip_auto_config_setup(char *addrs) strlcpy(user_dev_name, ip, sizeof(user_dev_name)); break; case 6: - ic_proto_name(ip); + if (ic_proto_name(ip) == 0 && + ic_myaddr == NONE) { + ic_enable = 0; + } break; } } |