Merge pull request #7601 from douzzer/20240529-linuxkm-6v10-updates

20240529-linuxkm-6v10-updates
wolfSSL · May 30, 2024 · 66a5d8c · 66a5d8c
2 parents 107c10d + 41cbbfe
commit 66a5d8c
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Showing 4 changed files with 56 additions and 18 deletions.
diff --git a/linuxkm/Kbuild b/linuxkm/Kbuild
@@ -172,14 +172,14 @@ ifneq "$(quiet)" "silent_"
  @echo ' wolfCrypt .{text,data,rodata} sections containerized to .{text,data,rodata}.wolfcrypt'
 endif
 
-$(src)/linuxkm/module_exports.c: rename-pie-text-and-data-sections
+$(obj)/linuxkm/module_exports.c: rename-pie-text-and-data-sections
 
 endif
 
 
 # auto-generate the exported symbol list, leveraging the WOLFSSL_API visibility tags.
 # exclude symbols that don't match wc_* or wolf*.
-$(src)/linuxkm/module_exports.c: $(src)/linuxkm/module_exports.c.template $(WOLFSSL_OBJ_TARGETS)
+$(obj)/linuxkm/module_exports.c: $(src)/module_exports.c.template $(WOLFSSL_OBJ_TARGETS)
  @cp $< $@
  @readelf --symbols --wide $(WOLFSSL_OBJ_TARGETS) | \
  awk '/^ *[0-9]+: / { \
@@ -190,4 +190,4 @@ $(src)/linuxkm/module_exports.c: $(src)/linuxkm/module_exports.c.template $(WOLF
  }' >> $@
  @echo -e '#ifndef NO_CRYPT_TEST\nEXPORT_SYMBOL_NS_GPL(wolfcrypt_test, WOLFSSL);\n#endif' >> $@
 
-clean-files := module_exports.c linuxkm src wolfcrypt/src wolfcrypt/test wolfcrypt
+clean-files := linuxkm src wolfcrypt
diff --git a/linuxkm/Makefile b/linuxkm/Makefile
@@ -64,10 +64,15 @@ libwolfssl.ko:
  @if test -z "$(src_libwolfssl_la_OBJECTS)"; then echo '$$src_libwolfssl_la_OBJECTS is unset.' >&2; exit 1; fi
  @mkdir -p linuxkm src wolfcrypt/src wolfcrypt/test
  @if test ! -h $(SRC_TOP)/Kbuild; then ln -s $(MODULE_TOP)/Kbuild $(SRC_TOP)/Kbuild; fi
+ # after commit 9a0ebe5011 (6.10), sources must be in $(obj). work around this by making links to all needed sources:
+ @cp --no-dereference --symbolic-link --update=none '$(MODULE_TOP)'/*.[ch] '$(MODULE_TOP)'/linuxkm/
+ @cp --no-dereference --symbolic-link --update=none --recursive '$(SRC_TOP)'/wolfcrypt/src '$(MODULE_TOP)'/wolfcrypt/
+ @cp --no-dereference --symbolic-link --update=none --recursive '$(SRC_TOP)'/wolfcrypt/test '$(MODULE_TOP)'/wolfcrypt/
+ @cp --no-dereference --symbolic-link --update=none --recursive '$(SRC_TOP)'/src '$(MODULE_TOP)'/
 ifeq "$(ENABLED_LINUXKM_PIE)" "yes"
- +$(MAKE) -C $(KERNEL_ROOT) M=$(MODULE_TOP) src=$(SRC_TOP) $(KBUILD_EXTRA_FLAGS) CC_FLAGS_FTRACE=
+ +$(MAKE) -C $(KERNEL_ROOT) M=$(MODULE_TOP) $(KBUILD_EXTRA_FLAGS) CC_FLAGS_FTRACE=
 else
- +$(MAKE) -C $(KERNEL_ROOT) M=$(MODULE_TOP) src=$(SRC_TOP) $(KBUILD_EXTRA_FLAGS)
+ +$(MAKE) -C $(KERNEL_ROOT) M=$(MODULE_TOP) $(KBUILD_EXTRA_FLAGS)
 endif
 
 libwolfssl.ko.signed: libwolfssl.ko

diff --git a/linuxkm/linuxkm_wc_port.h b/linuxkm/linuxkm_wc_port.h
@@ -532,22 +532,31 @@
 
  const unsigned char *_ctype;
 
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 10, 0)
+ typeof(kmalloc_noprof) *kmalloc_noprof;
+ typeof(krealloc_noprof) *krealloc_noprof;
+ typeof(kzalloc_noprof) *kzalloc_noprof;
+ typeof(kvmalloc_node_noprof) *kvmalloc_node_noprof;
+ typeof(kmalloc_trace_noprof) *kmalloc_trace_noprof;
+#else /* <6.10.0 */
  typeof(kmalloc) *kmalloc;
- typeof(kfree) *kfree;
- typeof(ksize) *ksize;
  typeof(krealloc) *krealloc;
  #ifdef HAVE_KVMALLOC
  typeof(kvmalloc_node) *kvmalloc_node;
- typeof(kvfree) *kvfree;
  #endif
- typeof(is_vmalloc_addr) *is_vmalloc_addr;
-
  #if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 1, 0)
  typeof(kmalloc_trace) *kmalloc_trace;
  #else
  typeof(kmem_cache_alloc_trace) *kmem_cache_alloc_trace;
  typeof(kmalloc_order_trace) *kmalloc_order_trace;
  #endif
+#endif /* <6.10.0 */
+ #ifdef HAVE_KVMALLOC
+ typeof(kvfree) *kvfree;
+ #endif
+ typeof(kfree) *kfree;
+ typeof(ksize) *ksize;
+ typeof(is_vmalloc_addr) *is_vmalloc_addr;
 
  typeof(get_random_bytes) *get_random_bytes;
  #if LINUX_VERSION_CODE < KERNEL_VERSION(4, 0, 0)
@@ -675,22 +684,35 @@
 
  #define _ctype (wolfssl_linuxkm_get_pie_redirect_table()->_ctype)
 
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 10, 0)
+ /* see include/linux/alloc_tag.h and include/linux/slab.h */
+ #define kmalloc_noprof (wolfssl_linuxkm_get_pie_redirect_table()->kmalloc_noprof)
+ #define krealloc_noprof (wolfssl_linuxkm_get_pie_redirect_table()->krealloc_noprof)
+ #define kzalloc_noprof (wolfssl_linuxkm_get_pie_redirect_table()->kzalloc_noprof)
+ #define kvmalloc_node_noprof (wolfssl_linuxkm_get_pie_redirect_table()->kvmalloc_node_noprof)
+ #define kmalloc_trace_noprof (wolfssl_linuxkm_get_pie_redirect_table()->kmalloc_trace_noprof)
+#else /* <6.10.0 */
  #define kmalloc (wolfssl_linuxkm_get_pie_redirect_table()->kmalloc)
- #define kfree (wolfssl_linuxkm_get_pie_redirect_table()->kfree)
- #define ksize (wolfssl_linuxkm_get_pie_redirect_table()->ksize)
  #define krealloc (wolfssl_linuxkm_get_pie_redirect_table()->krealloc)
  #define kzalloc(size, flags) kmalloc(size, (flags) | __GFP_ZERO)
  #ifdef HAVE_KVMALLOC
  #define kvmalloc_node (wolfssl_linuxkm_get_pie_redirect_table()->kvmalloc_node)
- #define kvfree (wolfssl_linuxkm_get_pie_redirect_table()->kvfree)
  #endif
- #define is_vmalloc_addr (wolfssl_linuxkm_get_pie_redirect_table()->is_vmalloc_addr)
  #if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 1, 0)
  #define kmalloc_trace (wolfssl_linuxkm_get_pie_redirect_table()->kmalloc_trace)
  #else
  #define kmem_cache_alloc_trace (wolfssl_linuxkm_get_pie_redirect_table()->kmem_cache_alloc_trace)
  #define kmalloc_order_trace (wolfssl_linuxkm_get_pie_redirect_table()->kmalloc_order_trace)
  #endif
+#endif /* <6.10.0 */
+
+ #define kfree (wolfssl_linuxkm_get_pie_redirect_table()->kfree)
+ #ifdef HAVE_KVMALLOC
+ #define kvfree (wolfssl_linuxkm_get_pie_redirect_table()->kvfree)
+ #endif
+ #define ksize (wolfssl_linuxkm_get_pie_redirect_table()->ksize)
+
+ #define is_vmalloc_addr (wolfssl_linuxkm_get_pie_redirect_table()->is_vmalloc_addr)
 
  #define get_random_bytes (wolfssl_linuxkm_get_pie_redirect_table()->get_random_bytes)
  #if LINUX_VERSION_CODE < KERNEL_VERSION(4, 0, 0)

diff --git a/linuxkm/module_hooks.c b/linuxkm/module_hooks.c
@@ -459,15 +459,18 @@ static int set_up_wolfssl_linuxkm_pie_redirect_table(void) {
 
  wolfssl_linuxkm_pie_redirect_table._ctype = _ctype;
 
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 10, 0)
+ wolfssl_linuxkm_pie_redirect_table.kmalloc_noprof = kmalloc_noprof;
+ wolfssl_linuxkm_pie_redirect_table.krealloc_noprof = krealloc_noprof;
+ wolfssl_linuxkm_pie_redirect_table.kzalloc_noprof = kzalloc_noprof;
+ wolfssl_linuxkm_pie_redirect_table.kvmalloc_node_noprof = kvmalloc_node_noprof;
+ wolfssl_linuxkm_pie_redirect_table.kmalloc_trace_noprof = kmalloc_trace_noprof;
+#else
  wolfssl_linuxkm_pie_redirect_table.kmalloc = kmalloc;
- wolfssl_linuxkm_pie_redirect_table.kfree = kfree;
- wolfssl_linuxkm_pie_redirect_table.ksize = ksize;
  wolfssl_linuxkm_pie_redirect_table.krealloc = krealloc;
 #ifdef HAVE_KVMALLOC
  wolfssl_linuxkm_pie_redirect_table.kvmalloc_node = kvmalloc_node;
- wolfssl_linuxkm_pie_redirect_table.kvfree = kvfree;
 #endif
- wolfssl_linuxkm_pie_redirect_table.is_vmalloc_addr = is_vmalloc_addr;
  #if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 1, 0)
  wolfssl_linuxkm_pie_redirect_table.kmalloc_trace =
  kmalloc_trace;
@@ -477,6 +480,14 @@ static int set_up_wolfssl_linuxkm_pie_redirect_table(void) {
  wolfssl_linuxkm_pie_redirect_table.kmalloc_order_trace =
  kmalloc_order_trace;
  #endif
+#endif
+
+ wolfssl_linuxkm_pie_redirect_table.kfree = kfree;
+ wolfssl_linuxkm_pie_redirect_table.ksize = ksize;
+#ifdef HAVE_KVMALLOC
+ wolfssl_linuxkm_pie_redirect_table.kvfree = kvfree;
+#endif
+ wolfssl_linuxkm_pie_redirect_table.is_vmalloc_addr = is_vmalloc_addr;
 
  wolfssl_linuxkm_pie_redirect_table.get_random_bytes = get_random_bytes;
  #if LINUX_VERSION_CODE < KERNEL_VERSION(4, 0, 0)