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>Well, the kernel doesn't link for me when IPV6 is compiled as a module (config
>below) -- linking IPv6 in is fine.
Here is a fix for xfrm6_get_type() link problem when IPv6 is
configured as a module.
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diff -ruN linux-2.5.61.orig/net/ipv4/xfrm_policy.c linux-2.5.61/net/ipv4/xfrm_policy.c
--- linux-2.5.61.orig/net/ipv4/xfrm_policy.c 2003-02-14 15:51:45.000000000 -0800
+++ linux-2.5.61/net/ipv4/xfrm_policy.c 2003-02-15 16:11:43.000000000 -0800
@@ -1228,3 +1228,48 @@
xfrm_state_init();
xfrm_input_init();
}
+
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+
+static struct xfrm_type *xfrm6_type_map[256];
+static rwlock_t xfrm6_type_lock = RW_LOCK_UNLOCKED;
+
+int xfrm6_register_type(struct xfrm_type *type)
+{
+ int err = 0;
+
+ write_lock(&xfrm6_type_lock);
+ if (xfrm6_type_map[type->proto] == NULL)
+ xfrm6_type_map[type->proto] = type;
+ else
+ err = -EEXIST;
+ write_unlock(&xfrm6_type_lock);
+ return err;
+}
+
+int xfrm6_unregister_type(struct xfrm_type *type)
+{
+ int err = 0;
+
+ write_lock(&xfrm6_type_lock);
+ if (xfrm6_type_map[type->proto] != type)
+ err = -ENOENT;
+ else
+ xfrm6_type_map[type->proto] = NULL;
+ write_unlock(&xfrm6_type_lock);
+ return err;
+}
+
+struct xfrm_type *xfrm6_get_type(u8 proto)
+{
+ struct xfrm_type *type;
+
+ read_lock(&xfrm6_type_lock);
+ type = xfrm6_type_map[proto];
+ if (type && !try_module_get(type->owner))
+ type = NULL;
+ read_unlock(&xfrm6_type_lock);
+ return type;
+}
+
+#endif
diff -ruN linux-2.5.61.orig/net/ipv6/Makefile linux-2.5.61/net/ipv6/Makefile
--- linux-2.5.61.orig/net/ipv6/Makefile 2003-02-14 15:52:25.000000000 -0800
+++ linux-2.5.61/net/ipv6/Makefile 2003-02-15 16:10:13.000000000 -0800
@@ -11,5 +11,3 @@
ip6_flowlabel.o ipv6_syms.o
obj-$(CONFIG_NETFILTER) += netfilter/
-
-obj-y += xfrm_policy.o
diff -ruN linux-2.5.61.orig/net/ipv6/ipv6_syms.c linux-2.5.61/net/ipv6/ipv6_syms.c
--- linux-2.5.61.orig/net/ipv6/ipv6_syms.c 2003-02-14 15:52:09.000000000 -0800
+++ linux-2.5.61/net/ipv6/ipv6_syms.c 2003-02-15 16:10:24.000000000 -0800
@@ -26,6 +26,3 @@
EXPORT_SYMBOL(inet6_ioctl);
EXPORT_SYMBOL(ipv6_get_saddr);
EXPORT_SYMBOL(ipv6_chk_addr);
-EXPORT_SYMBOL(xfrm6_register_type);
-EXPORT_SYMBOL(xfrm6_unregister_type);
-EXPORT_SYMBOL(xfrm6_get_type);
diff -ruN linux-2.5.61.orig/net/ipv6/xfrm_policy.c linux-2.5.61/net/ipv6/xfrm_policy.c
--- linux-2.5.61.orig/net/ipv6/xfrm_policy.c 2003-02-14 15:52:25.000000000 -0800
+++ linux-2.5.61/net/ipv6/xfrm_policy.c 1969-12-31 16:00:00.000000000 -0800
@@ -1,43 +0,0 @@
-#include <net/xfrm.h>
-#include <net/ip.h>
-
-static struct xfrm_type *xfrm6_type_map[256];
-static rwlock_t xfrm6_type_lock = RW_LOCK_UNLOCKED;
-
-int xfrm6_register_type(struct xfrm_type *type)
-{
- int err = 0;
-
- write_lock(&xfrm6_type_lock);
- if (xfrm6_type_map[type->proto] == NULL)
- xfrm6_type_map[type->proto] = type;
- else
- err = -EEXIST;
- write_unlock(&xfrm6_type_lock);
- return err;
-}
-
-int xfrm6_unregister_type(struct xfrm_type *type)
-{
- int err = 0;
-
- write_lock(&xfrm6_type_lock);
- if (xfrm6_type_map[type->proto] != type)
- err = -ENOENT;
- else
- xfrm6_type_map[type->proto] = NULL;
- write_unlock(&xfrm6_type_lock);
- return err;
-}
-
-struct xfrm_type *xfrm6_get_type(u8 proto)
-{
- struct xfrm_type *type;
-
- read_lock(&xfrm6_type_lock);
- type = xfrm6_type_map[proto];
- if (type && !try_module_get(type->owner))
- type = NULL;
- read_unlock(&xfrm6_type_lock);
- return type;
-}
diff -ruN linux-2.5.61.orig/net/netsyms.c linux-2.5.61/net/netsyms.c
--- linux-2.5.61.orig/net/netsyms.c 2003-02-14 15:51:31.000000000 -0800
+++ linux-2.5.61/net/netsyms.c 2003-02-15 16:10:46.000000000 -0800
@@ -328,6 +328,9 @@
EXPORT_SYMBOL(xfrm6_state_lookup);
EXPORT_SYMBOL(xfrm6_find_acq);
EXPORT_SYMBOL(xfrm6_alloc_spi);
+EXPORT_SYMBOL(xfrm6_register_type);
+EXPORT_SYMBOL(xfrm6_unregister_type);
+EXPORT_SYMBOL(xfrm6_get_type);
#endif
EXPORT_SYMBOL_GPL(xfrm_probe_algs);
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