add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/fs/verity/fsverity_private.h
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@@ -122,11 +122,16 @@
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 				     const u8 *salt, size_t salt_size);
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 struct fsverity_info *fsverity_create_info(const struct inode *inode,
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-					   void *desc, size_t desc_size);
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+					   struct fsverity_descriptor *desc,
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+					   size_t desc_size);
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 void fsverity_set_info(struct inode *inode, struct fsverity_info *vi);
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 void fsverity_free_info(struct fsverity_info *vi);
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+
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+int fsverity_get_descriptor(struct inode *inode,
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+			    struct fsverity_descriptor **desc_ret,
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+			    size_t *desc_size_ret);
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 int __init fsverity_init_info_cache(void);
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 void __init fsverity_exit_info_cache(void);
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@@ -135,15 +140,13 @@
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 #ifdef CONFIG_FS_VERITY_BUILTIN_SIGNATURES
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 int fsverity_verify_signature(const struct fsverity_info *vi,
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-			      const struct fsverity_descriptor *desc,
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-			      size_t desc_size);
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+			      const u8 *signature, size_t sig_size);
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 int __init fsverity_init_signature(void);
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 #else /* !CONFIG_FS_VERITY_BUILTIN_SIGNATURES */
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 static inline int
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 fsverity_verify_signature(const struct fsverity_info *vi,
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-			  const struct fsverity_descriptor *desc,
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-			  size_t desc_size)
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+			  const u8 *signature, size_t sig_size)
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 {
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 	return 0;
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 }