Function report |
Source Code:security\keys\keyctl_pkey.c |
Create Date:2022-07-28 18:27:45 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:Get parameters from userspace. Callers must always call the free function* on params, even if an error is returned.
Proto:static int keyctl_pkey_params_get_2(const struct keyctl_pkey_params __user *_params, const char __user *_info, int op, struct kernel_pkey_params *params)
Type:int
Parameter:
Type | Parameter | Name |
---|---|---|
const struct keyctl_pkey_params __user * | _params | |
const char __user * | _info | |
int | op | |
struct kernel_pkey_params * | params |
123 | Encoding (eg. "oaep" or "raw" for none) = "raw" |
125 | If copy_from_user( & uparams, _params, size of uparams ) != 0 Then Return -EFAULT |
128 | ret = Interpret parameters. Callers must always call the free function* on params, even if an error is returned. |
132 | ret = asym_query(params, & info) |
137 | Case op == Encrypt a blob using a public key |
138 | Case op == Decrypt a blob using a public key |
139 | If Input data size > Maximum size of encrypted blob in bytes || Output buffer size (encrypt/decrypt/sign) > Maximum size of decrypted blob in bytes Then Return -EINVAL |
142 | Break |
143 | Case op == Create a public key signature |
144 | Case op == Verify a public key signature |
145 | If Input data size > Maximum size of signature in bytes || Output buffer size (encrypt/decrypt/sign) > Maximum size of raw data to sign in bytes Then Return -EINVAL |
148 | Break |
149 | Default |
150 | BUG() |
155 | Return 0 |
Name | Describe |
---|---|
keyctl_pkey_e_d_s | Encrypt/decrypt/sign* Encrypt data, decrypt data or sign data using a public key |
keyctl_pkey_verify | Verify a signature |
Source code conversion tool public plug-in interface | X |
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