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Implements the SSH v2 key agent protocol. This protocol is documented in the
SSH source code, in the file
U{PROTOCOL.agent<http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/PROTOCOL.agent>}.
Maintainer: Paul Swartz
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The client side of the SSH agent protocol. This is equivalent to
ssh-add(1) and can be used with either ssh-agent(1) or the SSHAgentServer
protocol, also in this package.
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@return: A L{Deferred} which will fire with a list of all keys found in
the SSH agent. The list of keys is comprised of (public key blob,
comment) tuples.
r )r- �AGENTC_REQUEST_IDENTITIES� addCallback�_cbRequestIdentities)r r& r r r �requestIdentities? s z SSHAgentClient.requestIdentitiesc C s� t |dd� �tkr,tdt |dd� � ��t�d|dd� �d }g }|dd� }t|�D ]*}t|�\}}t|�\}}|�||f� q\|S )z}
Unpack a collection of identities into a list of tuples comprised of
public key blobs and comments.
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Add a private key blob to the agent's collection of keys.
)r r- �AGENTC_ADD_IDENTITY)r r8 r9 �reqr r r � addIdentity[ s zSSHAgentClient.addIdentityc C s0 t |�}|t |�7 }|d7 }| �t|��| j�S )a�
Request that the agent sign the given C{data} with the private key
which corresponds to the public key given by C{blob}. The private
key should have been added to the agent already.
@type blob: L{bytes}
@type data: L{bytes}
@return: A L{Deferred} which fires with a signature for given data
created with the given key.
� )r r- �AGENTC_SIGN_REQUESTr/ � _cbSignData)r r8 r" r; r r r �signDatad s zSSHAgentClient.signDatac C sD t |dd� �tkr,tdt |dd� � ��t|dd � �d }|S )Nr r zunexpected data: %i)r �AGENT_SIGN_RESPONSEr r )r r" Z signaturer r r r? u s zSSHAgentClient._cbSignDatac C s t |�}| �t|�S )zp
Remove the private key corresponding to the public key in blob from the
running agent.
)r r- �AGENTC_REMOVE_IDENTITY)r r8 r; r r r �removeIdentity| s z SSHAgentClient.removeIdentityc C s | � td�S )z9
Remove all keys from the running agent.
r )r- � AGENTC_REMOVE_ALL_IDENTITIESr r r r �removeAllIdentities� s z"SSHAgentClient.removeAllIdentitiesN)r )�__name__�
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The server side of the SSH agent protocol. This is equivalent to
ssh-agent(1) and can be used with either ssh-add(1) or the SSHAgentClient
protocol, also in this package.
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dd �d kr�| �td� t � �||dd � � qd S )Nr r r r r z agentc_%sr ) r r r r r �messages�get� sendResponser �getattr�factoryr )r r" r# r$ r% ZreqName�fr r r r' � s ( zSSHAgentServer.dataReceivedc C s* t �dt|�d |�| }| j�|� d S r( )r r) r r* r+ )r r% r" r) r r r rM � s zSSHAgentServer.sendResponsec C sz |dks t �t| jj�}g }|�t�d|�� t| jj�D ](\}}|�t|� � �� |�t|�� q:| �
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Return all of the identities that have been added to the server
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Data is a structure with a reference to an already added key object and
some data that the clients wants signed with that key. If the key
object wasn't loaded, return AGENT_FAILURE, else return the signature.
r r= r N) r rO r rM r rQ rA r Zsign)r r" r8 r@ r r r �agentc_SIGN_REQUEST� s z"SSHAgentServer.agentc_SIGN_REQUESTc C s� t |�\}}|dkrd}n |dkr(d}nt�d| ��t||�d }t |�\}}tjj|dd�}||f| jj|�� < | �t d � d
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Adds a private key to the agent's collection of identities. On
subsequent interactions, the private key can be accessed using only the
corresponding public key.
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fromStringrO r8 rM r )r r" ZkeyType�restZnmpr9 �kr r r �agentc_ADD_IDENTITY� s z"SSHAgentServer.agentc_ADD_IDENTITYc C s: t |�\}}tjj|dd�}| jj|�� = | �td� dS )zR
Remove a specific key from the agent's collection of identities.
r8 rX r N)r r rZ r[ rO r8 rM r )r r" r8 �_r] r r r �agentc_REMOVE_IDENTITY� s z%SSHAgentServer.agentc_REMOVE_IDENTITYc C s$ |dks t �i | j_| �td� dS )zL
Remove all keys from the agent's collection of identities.
r N)rQ rO r rM r �r r" r r r � agentc_REMOVE_ALL_IDENTITIES� s z+SSHAgentServer.agentc_REMOVE_ALL_IDENTITIESc C s | � tt�dd�� dS )z�
v1 message for listing RSA1 keys; superseded by
agentc_REQUEST_IDENTITIES, which handles different key types.
r r N)rM �AGENT_RSA_IDENTITIES_ANSWERr r) ra r r r � agentc_REQUEST_RSA_IDENTITIES� s z,SSHAgentServer.agentc_REQUEST_RSA_IDENTITIESc C s | � td� dS )z�
v1 message for removing RSA1 keys; superseded by
agentc_REMOVE_IDENTITY, which handles different key types.
r N�rM r ra r r r �agentc_REMOVE_RSA_IDENTITY s z)SSHAgentServer.agentc_REMOVE_RSA_IDENTITYc C s | � td� dS )z�
v1 message for removing all RSA1 keys; superseded by
agentc_REMOVE_ALL_IDENTITIES, which handles different key types.
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