diff options
Diffstat (limited to 'kernel/include/keys')
| -rw-r--r-- | kernel/include/keys/asymmetric-parser.h | 37 | ||||
| -rw-r--r-- | kernel/include/keys/asymmetric-subtype.h | 55 | ||||
| -rw-r--r-- | kernel/include/keys/asymmetric-type.h | 66 | ||||
| -rw-r--r-- | kernel/include/keys/big_key-type.h | 26 | ||||
| -rw-r--r-- | kernel/include/keys/ceph-type.h | 8 | ||||
| -rw-r--r-- | kernel/include/keys/dns_resolver-type.h | 23 | ||||
| -rw-r--r-- | kernel/include/keys/encrypted-type.h | 38 | ||||
| -rw-r--r-- | kernel/include/keys/keyring-type.h | 18 | ||||
| -rw-r--r-- | kernel/include/keys/rxrpc-type.h | 130 | ||||
| -rw-r--r-- | kernel/include/keys/system_keyring.h | 31 | ||||
| -rw-r--r-- | kernel/include/keys/trusted-type.h | 31 | ||||
| -rw-r--r-- | kernel/include/keys/user-type.h | 50 |
12 files changed, 513 insertions, 0 deletions
diff --git a/kernel/include/keys/asymmetric-parser.h b/kernel/include/keys/asymmetric-parser.h new file mode 100644 index 000000000..09b3b4807 --- /dev/null +++ b/kernel/include/keys/asymmetric-parser.h @@ -0,0 +1,37 @@ +/* Asymmetric public-key cryptography data parser + * + * See Documentation/crypto/asymmetric-keys.txt + * + * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public Licence + * as published by the Free Software Foundation; either version + * 2 of the Licence, or (at your option) any later version. + */ + +#ifndef _KEYS_ASYMMETRIC_PARSER_H +#define _KEYS_ASYMMETRIC_PARSER_H + +/* + * Key data parser. Called during key instantiation. + */ +struct asymmetric_key_parser { + struct list_head link; + struct module *owner; + const char *name; + + /* Attempt to parse a key from the data blob passed to add_key() or + * keyctl_instantiate(). Should also generate a proposed description + * that the caller can optionally use for the key. + * + * Return EBADMSG if not recognised. + */ + int (*parse)(struct key_preparsed_payload *prep); +}; + +extern int register_asymmetric_key_parser(struct asymmetric_key_parser *); +extern void unregister_asymmetric_key_parser(struct asymmetric_key_parser *); + +#endif /* _KEYS_ASYMMETRIC_PARSER_H */ diff --git a/kernel/include/keys/asymmetric-subtype.h b/kernel/include/keys/asymmetric-subtype.h new file mode 100644 index 000000000..4b840e822 --- /dev/null +++ b/kernel/include/keys/asymmetric-subtype.h @@ -0,0 +1,55 @@ +/* Asymmetric public-key cryptography key subtype + * + * See Documentation/security/asymmetric-keys.txt + * + * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public Licence + * as published by the Free Software Foundation; either version + * 2 of the Licence, or (at your option) any later version. + */ + +#ifndef _KEYS_ASYMMETRIC_SUBTYPE_H +#define _KEYS_ASYMMETRIC_SUBTYPE_H + +#include <linux/seq_file.h> +#include <keys/asymmetric-type.h> + +struct public_key_signature; + +/* + * Keys of this type declare a subtype that indicates the handlers and + * capabilities. + */ +struct asymmetric_key_subtype { + struct module *owner; + const char *name; + unsigned short name_len; /* length of name */ + + /* Describe a key of this subtype for /proc/keys */ + void (*describe)(const struct key *key, struct seq_file *m); + + /* Destroy a key of this subtype */ + void (*destroy)(void *payload); + + /* Verify the signature on a key of this subtype (optional) */ + int (*verify_signature)(const struct key *key, + const struct public_key_signature *sig); +}; + +/** + * asymmetric_key_subtype - Get the subtype from an asymmetric key + * @key: The key of interest. + * + * Retrieves and returns the subtype pointer of the asymmetric key from the + * type-specific data attached to the key. + */ +static inline +struct asymmetric_key_subtype *asymmetric_key_subtype(const struct key *key) +{ + return key->type_data.p[0]; +} + +#endif /* _KEYS_ASYMMETRIC_SUBTYPE_H */ diff --git a/kernel/include/keys/asymmetric-type.h b/kernel/include/keys/asymmetric-type.h new file mode 100644 index 000000000..c0754abb2 --- /dev/null +++ b/kernel/include/keys/asymmetric-type.h @@ -0,0 +1,66 @@ +/* Asymmetric Public-key cryptography key type interface + * + * See Documentation/security/asymmetric-keys.txt + * + * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public Licence + * as published by the Free Software Foundation; either version + * 2 of the Licence, or (at your option) any later version. + */ + +#ifndef _KEYS_ASYMMETRIC_TYPE_H +#define _KEYS_ASYMMETRIC_TYPE_H + +#include <linux/key-type.h> + +extern struct key_type key_type_asymmetric; + +/* + * Identifiers for an asymmetric key ID. We have three ways of looking up a + * key derived from an X.509 certificate: + * + * (1) Serial Number & Issuer. Non-optional. This is the only valid way to + * map a PKCS#7 signature to an X.509 certificate. + * + * (2) Issuer & Subject Unique IDs. Optional. These were the original way to + * match X.509 certificates, but have fallen into disuse in favour of (3). + * + * (3) Auth & Subject Key Identifiers. Optional. SKIDs are only provided on + * CA keys that are intended to sign other keys, so don't appear in end + * user certificates unless forced. + * + * We could also support an PGP key identifier, which is just a SHA1 sum of the + * public key and certain parameters, but since we don't support PGP keys at + * the moment, we shall ignore those. + * + * What we actually do is provide a place where binary identifiers can be + * stashed and then compare against them when checking for an id match. + */ +struct asymmetric_key_id { + unsigned short len; + unsigned char data[]; +}; + +struct asymmetric_key_ids { + void *id[2]; +}; + +extern bool asymmetric_key_id_same(const struct asymmetric_key_id *kid1, + const struct asymmetric_key_id *kid2); + +extern bool asymmetric_key_id_partial(const struct asymmetric_key_id *kid1, + const struct asymmetric_key_id *kid2); + +extern struct asymmetric_key_id *asymmetric_key_generate_id(const void *val_1, + size_t len_1, + const void *val_2, + size_t len_2); + +/* + * The payload is at the discretion of the subtype. + */ + +#endif /* _KEYS_ASYMMETRIC_TYPE_H */ diff --git a/kernel/include/keys/big_key-type.h b/kernel/include/keys/big_key-type.h new file mode 100644 index 000000000..e0970a578 --- /dev/null +++ b/kernel/include/keys/big_key-type.h @@ -0,0 +1,26 @@ +/* Big capacity key type. + * + * Copyright (C) 2013 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#ifndef _KEYS_BIG_KEY_TYPE_H +#define _KEYS_BIG_KEY_TYPE_H + +#include <linux/key-type.h> + +extern struct key_type key_type_big_key; + +extern int big_key_preparse(struct key_preparsed_payload *prep); +extern void big_key_free_preparse(struct key_preparsed_payload *prep); +extern void big_key_revoke(struct key *key); +extern void big_key_destroy(struct key *key); +extern void big_key_describe(const struct key *big_key, struct seq_file *m); +extern long big_key_read(const struct key *key, char __user *buffer, size_t buflen); + +#endif /* _KEYS_BIG_KEY_TYPE_H */ diff --git a/kernel/include/keys/ceph-type.h b/kernel/include/keys/ceph-type.h new file mode 100644 index 000000000..f69c4ac19 --- /dev/null +++ b/kernel/include/keys/ceph-type.h @@ -0,0 +1,8 @@ +#ifndef _KEYS_CEPH_TYPE_H +#define _KEYS_CEPH_TYPE_H + +#include <linux/key.h> + +extern struct key_type key_type_ceph; + +#endif diff --git a/kernel/include/keys/dns_resolver-type.h b/kernel/include/keys/dns_resolver-type.h new file mode 100644 index 000000000..9284a1939 --- /dev/null +++ b/kernel/include/keys/dns_resolver-type.h @@ -0,0 +1,23 @@ +/* DNS resolver key type + * + * Copyright (C) 2010 Wang Lei. All Rights Reserved. + * Written by Wang Lei (wang840925@gmail.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#ifndef _KEYS_DNS_RESOLVER_TYPE_H +#define _KEYS_DNS_RESOLVER_TYPE_H + +#include <linux/key-type.h> + +extern struct key_type key_type_dns_resolver; + +extern int request_dns_resolver_key(const char *description, + const char *callout_info, + char **data); + +#endif /* _KEYS_DNS_RESOLVER_TYPE_H */ diff --git a/kernel/include/keys/encrypted-type.h b/kernel/include/keys/encrypted-type.h new file mode 100644 index 000000000..1d4541370 --- /dev/null +++ b/kernel/include/keys/encrypted-type.h @@ -0,0 +1,38 @@ +/* + * Copyright (C) 2010 IBM Corporation + * Copyright (C) 2010 Politecnico di Torino, Italy + * TORSEC group -- http://security.polito.it + * + * Authors: + * Mimi Zohar <zohar@us.ibm.com> + * Roberto Sassu <roberto.sassu@polito.it> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, version 2 of the License. + */ + +#ifndef _KEYS_ENCRYPTED_TYPE_H +#define _KEYS_ENCRYPTED_TYPE_H + +#include <linux/key.h> +#include <linux/rcupdate.h> + +struct encrypted_key_payload { + struct rcu_head rcu; + char *format; /* datablob: format */ + char *master_desc; /* datablob: master key name */ + char *datalen; /* datablob: decrypted key length */ + u8 *iv; /* datablob: iv */ + u8 *encrypted_data; /* datablob: encrypted data */ + unsigned short datablob_len; /* length of datablob */ + unsigned short decrypted_datalen; /* decrypted data length */ + unsigned short payload_datalen; /* payload data length */ + unsigned short encrypted_key_format; /* encrypted key format */ + u8 *decrypted_data; /* decrypted data */ + u8 payload_data[0]; /* payload data + datablob + hmac */ +}; + +extern struct key_type key_type_encrypted; + +#endif /* _KEYS_ENCRYPTED_TYPE_H */ diff --git a/kernel/include/keys/keyring-type.h b/kernel/include/keys/keyring-type.h new file mode 100644 index 000000000..fca5c6234 --- /dev/null +++ b/kernel/include/keys/keyring-type.h @@ -0,0 +1,18 @@ +/* Keyring key type + * + * Copyright (C) 2008, 2013 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#ifndef _KEYS_KEYRING_TYPE_H +#define _KEYS_KEYRING_TYPE_H + +#include <linux/key.h> +#include <linux/assoc_array.h> + +#endif /* _KEYS_KEYRING_TYPE_H */ diff --git a/kernel/include/keys/rxrpc-type.h b/kernel/include/keys/rxrpc-type.h new file mode 100644 index 000000000..fc4875433 --- /dev/null +++ b/kernel/include/keys/rxrpc-type.h @@ -0,0 +1,130 @@ +/* RxRPC key type + * + * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#ifndef _KEYS_RXRPC_TYPE_H +#define _KEYS_RXRPC_TYPE_H + +#include <linux/key.h> + +/* + * key type for AF_RXRPC keys + */ +extern struct key_type key_type_rxrpc; + +extern struct key *rxrpc_get_null_key(const char *); + +/* + * RxRPC key for Kerberos IV (type-2 security) + */ +struct rxkad_key { + u32 vice_id; + u32 start; /* time at which ticket starts */ + u32 expiry; /* time at which ticket expires */ + u32 kvno; /* key version number */ + u8 primary_flag; /* T if key for primary cell for this user */ + u16 ticket_len; /* length of ticket[] */ + u8 session_key[8]; /* DES session key */ + u8 ticket[0]; /* the encrypted ticket */ +}; + +/* + * Kerberos 5 principal + * name/name/name@realm + */ +struct krb5_principal { + u8 n_name_parts; /* N of parts of the name part of the principal */ + char **name_parts; /* parts of the name part of the principal */ + char *realm; /* parts of the realm part of the principal */ +}; + +/* + * Kerberos 5 tagged data + */ +struct krb5_tagged_data { + /* for tag value, see /usr/include/krb5/krb5.h + * - KRB5_AUTHDATA_* for auth data + * - + */ + s32 tag; + u32 data_len; + u8 *data; +}; + +/* + * RxRPC key for Kerberos V (type-5 security) + */ +struct rxk5_key { + u64 authtime; /* time at which auth token generated */ + u64 starttime; /* time at which auth token starts */ + u64 endtime; /* time at which auth token expired */ + u64 renew_till; /* time to which auth token can be renewed */ + s32 is_skey; /* T if ticket is encrypted in another ticket's + * skey */ + s32 flags; /* mask of TKT_FLG_* bits (krb5/krb5.h) */ + struct krb5_principal client; /* client principal name */ + struct krb5_principal server; /* server principal name */ + u16 ticket_len; /* length of ticket */ + u16 ticket2_len; /* length of second ticket */ + u8 n_authdata; /* number of authorisation data elements */ + u8 n_addresses; /* number of addresses */ + struct krb5_tagged_data session; /* session data; tag is enctype */ + struct krb5_tagged_data *addresses; /* addresses */ + u8 *ticket; /* krb5 ticket */ + u8 *ticket2; /* second krb5 ticket, if related to ticket (via + * DUPLICATE-SKEY or ENC-TKT-IN-SKEY) */ + struct krb5_tagged_data *authdata; /* authorisation data */ +}; + +/* + * list of tokens attached to an rxrpc key + */ +struct rxrpc_key_token { + u16 security_index; /* RxRPC header security index */ + struct rxrpc_key_token *next; /* the next token in the list */ + union { + struct rxkad_key *kad; + struct rxk5_key *k5; + }; +}; + +/* + * structure of raw payloads passed to add_key() or instantiate key + */ +struct rxrpc_key_data_v1 { + u16 security_index; + u16 ticket_length; + u32 expiry; /* time_t */ + u32 kvno; + u8 session_key[8]; + u8 ticket[0]; +}; + +/* + * AF_RXRPC key payload derived from XDR format + * - based on openafs-1.4.10/src/auth/afs_token.xg + */ +#define AFSTOKEN_LENGTH_MAX 16384 /* max payload size */ +#define AFSTOKEN_STRING_MAX 256 /* max small string length */ +#define AFSTOKEN_DATA_MAX 64 /* max small data length */ +#define AFSTOKEN_CELL_MAX 64 /* max cellname length */ +#define AFSTOKEN_MAX 8 /* max tokens per payload */ +#define AFSTOKEN_BDATALN_MAX 16384 /* max big data length */ +#define AFSTOKEN_RK_TIX_MAX 12000 /* max RxKAD ticket size */ +#define AFSTOKEN_GK_KEY_MAX 64 /* max GSSAPI key size */ +#define AFSTOKEN_GK_TOKEN_MAX 16384 /* max GSSAPI token size */ +#define AFSTOKEN_K5_COMPONENTS_MAX 16 /* max K5 components */ +#define AFSTOKEN_K5_NAME_MAX 128 /* max K5 name length */ +#define AFSTOKEN_K5_REALM_MAX 64 /* max K5 realm name length */ +#define AFSTOKEN_K5_TIX_MAX 16384 /* max K5 ticket size */ +#define AFSTOKEN_K5_ADDRESSES_MAX 16 /* max K5 addresses */ +#define AFSTOKEN_K5_AUTHDATA_MAX 16 /* max K5 pieces of auth data */ + +#endif /* _KEYS_RXRPC_TYPE_H */ diff --git a/kernel/include/keys/system_keyring.h b/kernel/include/keys/system_keyring.h new file mode 100644 index 000000000..72665eb80 --- /dev/null +++ b/kernel/include/keys/system_keyring.h @@ -0,0 +1,31 @@ +/* System keyring containing trusted public keys. + * + * Copyright (C) 2013 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public Licence + * as published by the Free Software Foundation; either version + * 2 of the Licence, or (at your option) any later version. + */ + +#ifndef _KEYS_SYSTEM_KEYRING_H +#define _KEYS_SYSTEM_KEYRING_H + +#ifdef CONFIG_SYSTEM_TRUSTED_KEYRING + +#include <linux/key.h> + +extern struct key *system_trusted_keyring; +static inline struct key *get_system_trusted_keyring(void) +{ + return system_trusted_keyring; +} +#else +static inline struct key *get_system_trusted_keyring(void) +{ + return NULL; +} +#endif + +#endif /* _KEYS_SYSTEM_KEYRING_H */ diff --git a/kernel/include/keys/trusted-type.h b/kernel/include/keys/trusted-type.h new file mode 100644 index 000000000..56f82e5c9 --- /dev/null +++ b/kernel/include/keys/trusted-type.h @@ -0,0 +1,31 @@ +/* + * Copyright (C) 2010 IBM Corporation + * Author: David Safford <safford@us.ibm.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, version 2 of the License. + */ + +#ifndef _KEYS_TRUSTED_TYPE_H +#define _KEYS_TRUSTED_TYPE_H + +#include <linux/key.h> +#include <linux/rcupdate.h> + +#define MIN_KEY_SIZE 32 +#define MAX_KEY_SIZE 128 +#define MAX_BLOB_SIZE 320 + +struct trusted_key_payload { + struct rcu_head rcu; + unsigned int key_len; + unsigned int blob_len; + unsigned char migratable; + unsigned char key[MAX_KEY_SIZE + 1]; + unsigned char blob[MAX_BLOB_SIZE]; +}; + +extern struct key_type key_type_trusted; + +#endif /* _KEYS_TRUSTED_TYPE_H */ diff --git a/kernel/include/keys/user-type.h b/kernel/include/keys/user-type.h new file mode 100644 index 000000000..cebefb069 --- /dev/null +++ b/kernel/include/keys/user-type.h @@ -0,0 +1,50 @@ +/* user-type.h: User-defined key type + * + * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#ifndef _KEYS_USER_TYPE_H +#define _KEYS_USER_TYPE_H + +#include <linux/key.h> +#include <linux/rcupdate.h> + +/*****************************************************************************/ +/* + * the payload for a key of type "user" or "logon" + * - once filled in and attached to a key: + * - the payload struct is invariant may not be changed, only replaced + * - the payload must be read with RCU procedures or with the key semaphore + * held + * - the payload may only be replaced with the key semaphore write-locked + * - the key's data length is the size of the actual data, not including the + * payload wrapper + */ +struct user_key_payload { + struct rcu_head rcu; /* RCU destructor */ + unsigned short datalen; /* length of this data */ + char data[0]; /* actual data */ +}; + +extern struct key_type key_type_user; +extern struct key_type key_type_logon; + +struct key_preparsed_payload; + +extern int user_preparse(struct key_preparsed_payload *prep); +extern void user_free_preparse(struct key_preparsed_payload *prep); +extern int user_update(struct key *key, struct key_preparsed_payload *prep); +extern void user_revoke(struct key *key); +extern void user_destroy(struct key *key); +extern void user_describe(const struct key *user, struct seq_file *m); +extern long user_read(const struct key *key, + char __user *buffer, size_t buflen); + + +#endif /* _KEYS_USER_TYPE_H */ |