06 Feb, 2014

1 commit


15 Oct, 2012

1 commit

  • Pull module signing support from Rusty Russell:
    "module signing is the highlight, but it's an all-over David Howells frenzy..."

    Hmm "Magrathea: Glacier signing key". Somebody has been reading too much HHGTTG.

    * 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (37 commits)
    X.509: Fix indefinite length element skip error handling
    X.509: Convert some printk calls to pr_devel
    asymmetric keys: fix printk format warning
    MODSIGN: Fix 32-bit overflow in X.509 certificate validity date checking
    MODSIGN: Make mrproper should remove generated files.
    MODSIGN: Use utf8 strings in signer's name in autogenerated X.509 certs
    MODSIGN: Use the same digest for the autogen key sig as for the module sig
    MODSIGN: Sign modules during the build process
    MODSIGN: Provide a script for generating a key ID from an X.509 cert
    MODSIGN: Implement module signature checking
    MODSIGN: Provide module signing public keys to the kernel
    MODSIGN: Automatically generate module signing keys if missing
    MODSIGN: Provide Kconfig options
    MODSIGN: Provide gitignore and make clean rules for extra files
    MODSIGN: Add FIPS policy
    module: signature checking hook
    X.509: Add a crypto key parser for binary (DER) X.509 certificates
    MPILIB: Provide a function to read raw data into an MPI
    X.509: Add an ASN.1 decoder
    X.509: Add simple ASN.1 grammar compiler
    ...

    Linus Torvalds
     

08 Oct, 2012

1 commit

  • Give the key type the opportunity to preparse the payload prior to the
    instantiation and update routines being called. This is done with the
    provision of two new key type operations:

    int (*preparse)(struct key_preparsed_payload *prep);
    void (*free_preparse)(struct key_preparsed_payload *prep);

    If the first operation is present, then it is called before key creation (in
    the add/update case) or before the key semaphore is taken (in the update and
    instantiate cases). The second operation is called to clean up if the first
    was called.

    preparse() is given the opportunity to fill in the following structure:

    struct key_preparsed_payload {
    char *description;
    void *type_data[2];
    void *payload;
    const void *data;
    size_t datalen;
    size_t quotalen;
    };

    Before the preparser is called, the first three fields will have been cleared,
    the payload pointer and size will be stored in data and datalen and the default
    quota size from the key_type struct will be stored into quotalen.

    The preparser may parse the payload in any way it likes and may store data in
    the type_data[] and payload fields for use by the instantiate() and update()
    ops.

    The preparser may also propose a description for the key by attaching it as a
    string to the description field. This can be used by passing a NULL or ""
    description to the add_key() system call or the key_create_or_update()
    function. This cannot work with request_key() as that required the description
    to tell the upcall about the key to be created.

    This, for example permits keys that store PGP public keys to generate their own
    name from the user ID and public key fingerprint in the key.

    The instantiate() and update() operations are then modified to look like this:

    int (*instantiate)(struct key *key, struct key_preparsed_payload *prep);
    int (*update)(struct key *key, struct key_preparsed_payload *prep);

    and the new payload data is passed in *prep, whether or not it was preparsed.

    Signed-off-by: David Howells
    Signed-off-by: Rusty Russell

    David Howells
     

23 Aug, 2012

1 commit

  • Move the tpm_get_random api from the trusted keys code into the TPM
    device driver itself so that other callers can make use of it. Also,
    change the api slightly so that the number of bytes read is returned in
    the call, since the TPM command can potentially return fewer bytes than
    requested.

    Acked-by: David Safford
    Reviewed-by: H. Peter Anvin
    Signed-off-by: Kent Yoder

    Kent Yoder
     

18 Jan, 2012

1 commit

  • Define rcu_assign_keypointer(), which uses the key payload.rcudata instead
    of payload.data, to resolve the CONFIG_SPARSE_RCU_POINTER message:
    "incompatible types in comparison expression (different address spaces)"

    Replace the rcu_assign_pointer() calls in encrypted/trusted keys with
    rcu_assign_keypointer().

    Signed-off-by: Mimi Zohar
    Signed-off-by: David Howells
    Signed-off-by: James Morris

    Mimi Zohar
     

01 Nov, 2011

1 commit


21 Sep, 2011

1 commit


20 May, 2011

1 commit


08 Mar, 2011

1 commit


24 Jan, 2011

2 commits