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integrity: add validity checks for 'path' parameter
This patch adds validity checks for 'path' parameter and makes it const. Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com> Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
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@ -85,7 +85,7 @@ int __init integrity_init_keyring(const unsigned int id)
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return err;
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}
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int __init integrity_load_x509(const unsigned int id, char *path)
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int __init integrity_load_x509(const unsigned int id, const char *path)
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{
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key_ref_t key;
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char *data;
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@ -213,6 +213,9 @@ int __init integrity_read_file(const char *path, char **data)
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char *buf;
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int rc = -EINVAL;
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if (!path || !*path)
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return -EINVAL;
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file = filp_open(path, O_RDONLY, 0);
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if (IS_ERR(file)) {
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rc = PTR_ERR(file);
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@ -135,7 +135,7 @@ int integrity_digsig_verify(const unsigned int id, const char *sig, int siglen,
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const char *digest, int digestlen);
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int __init integrity_init_keyring(const unsigned int id);
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int __init integrity_load_x509(const unsigned int id, char *path);
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int __init integrity_load_x509(const unsigned int id, const char *path);
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#else
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static inline int integrity_digsig_verify(const unsigned int id,
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