net: bootp: Make root path (option 17) length configurable

to adjust the root path length.
Eg to 256 from Linux Kernel

Signed-off-by: Andre Kalb <andre.kalb@sma.de>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
[trini: Guard extern so that !CONFIG_NET platforms will build]
Signed-off-by: Tom Rini <trini@konsulko.com>

diff --git a/include/net.h b/include/net.h
index e3889a0..c06b577 100644 (file)
--- a/include/net.h
+++ b/include/net.h
@@ -536,7 +536,9 @@ extern struct in_addr net_dns_server2;
 #endif
 extern char    net_nis_domain[32];     /* Our IS domain */
 extern char    net_hostname[32];       /* Our hostname */
-extern char    net_root_path[64];      /* Our root path */
+#ifdef CONFIG_NET
+extern char    net_root_path[CONFIG_BOOTP_MAX_ROOT_PATH_LEN];  /* Our root path */
+#endif
 /** END OF BOOTP EXTENTIONS **/
 extern u8              net_ethaddr[ARP_HLEN];          /* Our ethernet address */
 extern u8              net_server_ethaddr[ARP_HLEN];   /* Boot server enet address */

diff --git a/net/Kconfig b/net/Kconfig
index 564ea8b..52e2618 100644 (file)
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -168,6 +168,12 @@ config BOOTP_SERVERIP
          variable, not the BOOTP server. This affects the operation of both
          bootp and tftp.
 
+config BOOTP_MAX_ROOT_PATH_LEN
+       int "Option 17 root path length"
+       default 64
+       help
+         Select maximal length of option 17 root path.
+
 endif   # if NET
 
 config SYS_RX_ETH_BUFFER

diff --git a/net/bootp.c b/net/bootp.c
index a544bfc..b260d5d 100644 (file)
--- a/net/bootp.c
+++ b/net/bootp.c
@@ -59,7 +59,7 @@ ulong         bootp_start;
 ulong          bootp_timeout;
 char net_nis_domain[32] = {0,}; /* Our NIS domain */
 char net_hostname[32] = {0,}; /* Our hostname */
-char net_root_path[64] = {0,}; /* Our bootpath */
+char net_root_path[CONFIG_BOOTP_MAX_ROOT_PATH_LEN] = {0,}; /* Our bootpath */
 
 static ulong time_taken_max;