| Commit message (Collapse) | Author | Age | Files | Lines |
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The krb5_{ccache,keytab,client_keytab} parameters are replaced with a
multivalued "cred_store" parameter instead.
krb5_keytab = /etc/krb5.keytab
becomes:
cred_store = keytab:/etc/krb5.keytab
Likewise for the "krb5_ccache" and "krb5_client_keytab" parameters.
Signed-off-by: Günther Deschner <gdeschner@redhat.com>
Signed-off-by: Simo Sorce <simo@redhat.com>
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This call returns an allocated array of strings. It allows to return multiple
values for a single parameter like:
param = value1
param = value2
This cannot be supported with iniparser, so we have to remove iniparser support.
Signed-off-by: Günther Deschner <gdeschner@redhat.com>
Reviewed-by: Simo Sorce <simo@redhat.com>
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Signed-off-by: Günther Deschner <gdeschner@redhat.com>
Reviewed-by: Simo Sorce <simo@redhat.com>
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test all possible proxy mode combinations only when --all is given.
Signed-off-by: Günther Deschner <gdeschner@redhat.com>
Reviewed-by: Simo Sorce <simo@redhat.com>
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Signed-off-by: Günther Deschner <gdeschner@redhat.com>
Reviewed-by: Simo Sorce <simo@redhat.com>
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Signed-off-by: Günther Deschner <gdeschner@redhat.com>
Reviewed-by: Simo Sorce <simo@redhat.com>
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Signed-off-by: Günther Deschner <gdeschner@redhat.com>
Reviewed-by: Simo Sorce <simo@redhat.com>
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Use /etc/krb5.keytab when nfsd service tries to acquire creds and
no id is specified in desired_name.
Signed-off-by: Simo Sorce <simo@redhat.com>
Reviewed-by: Günther Deschner <gdeschner@redhat.com>
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This is the only thread safe way to pass in aribitrary values for all the bits
of environment we want to use when doing impersonation within gss-proxy.
Requires MIT version 1.12 for the client_keytab part to be operational.
Signed-off-by: Simo Sorce <simo@redhat.com>
Reviewed-by: Günther Deschner <gdeschner@redhat.com>
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Signed-off-by: Simo Sorce <simo@redhat.com>
Reviewed-by: Günther Deschner <gdeschner@redhat.com>
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This way it can be reused for keytab path names too
Signed-off-by: Simo Sorce <simo@redhat.com>
Reviewed-by: Günther Deschner <gdeschner@redhat.com>
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In case the name type is GSS_C_NT_STRING_UID_NAME or GSS_NT_MACHINE_UID_NAME
we want to be able to impersonate the user referenced by the uid.
This is allowed exclusively for trusted services otherwise a generic
unprivileged application would be allowed to impersonate any user if there are
credentials available on the system or client keytabs installed.
Signed-off-by: Simo Sorce <simo@redhat.com>
Reviewed-by: Günther Deschner <gdeschner@redhat.com>
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Signed-off-by: Simo Sorce <simo@redhat.com>
Reviewed-by: Günther Deschner <gdeschner@redhat.com>
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Always use remote name by default, otherwise canonicalization will loose
information about the original name, for example it will convert names of
the special type GSS_C_NT_STRING_UID_NAME or GSS_NT_MACHINE_UID_NAME in a
non reversible way and the proxy will not be a le to use them as intended
(for impersonation by trusted services).
Signed-off-by: Simo Sorce <simo@redhat.com>
Reviewed-by: Günther Deschner <gdeschner@redhat.com>
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Signed-off-by: Simo Sorce <simo@redhat.com>
Reviewed-by: Günther Deschner <gdeschner@redhat.com>
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Abort if none of these libraries are found.
Signed-off-by: Günther Deschner <gdeschner@redhat.com>
Reviewed-by: Simo Sorce <simo@redhat.com>
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Signed-off-by: Günther Deschner <gdeschner@redhat.com>
Reviewed-by: Simo Sorce <simo@redhat.com>
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Signed-off-by: Günther Deschner <gdeschner@redhat.com>
Reviewed-by: Simo Sorce <simo@redhat.com>
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Signed-off-by: Günther Deschner <gdeschner@redhat.com>
Reviewed-by: Simo Sorce <simo@redhat.com>
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Signed-off-by: Simo Sorce <simo@redhat.com>
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Signed-off-by: Simo Sorce <simo@redhat.com>
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Found by Coverity
Signed-off-by: Simo Sorce <simo@redhat.com>
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Still a couple resource leaks after the last Coverity scan
Signed-off-by: Simo Sorce <simo@redhat.com>
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The client library lives in applications that may not be blocking or ignoring
SIGPIPE. Using write() can cause SIGPIPE to be raised in the application if the
proxy is restarted. If the application does not catch the signal then it is
terminated.
Make sure this does not happen by using send() with the MSG_NOSIGNAL flag.
Signed-off-by: Simo Sorce <simo@redhat.com>
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Signed-off-by: Simo Sorce <simo@redhat.com>
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Signed-off-by: Simo Sorce <simo@redhat.com>
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Change the i variable to be a signed integer ot the loop will never end because
and unsigned integer decremented past 0 simply wraps to a very big integer.
The condition that would break the loop can never be true therefore the code
would loop forever until eventually a double free would cause a crash.
Found by Coverity.
Signed-off-by: Simo Sorce <simo@redhat.com>
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Signed-off-by: Simo Sorce <simo@redhat.com>
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Found by Coverity as 'Argument cannot be negative' type of error.
Signed-off-by: Simo Sorce <simo@redhat.com>
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Signed-off-by: Simo Sorce <simo@redhat.com>
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Signed-off-by: Simo Sorce <simo@redhat.com>
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By setting closewait to 0 after waitpid we would loop forever not the max 10
times we intended to.
Signed-off-by: Simo Sorce <simo@redhat.com>
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Signed-off-by: Simo Sorce <simo@redhat.com>
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Signed-off-by: Simo Sorce <simo@redhat.com>
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When using remote credentials, intercept set_cred_option calls and
register an option into the existing set of crdentials with the
request to set allowed entypes at the first use of said crdentials.
Signed-off-by: Simo Sorce <simo@redhat.com>
Reviewed-by: Günther Deschner <gdeschner@redhat.com>
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The krb5 mechanism has a non standard extention to allow setting a list
of allowed enctypes to use with a particular set of crdentials.
This patch adds an extension, registerd by a client as a gssx_cred's
option, so that at the first use of this crdentials the proxy can try
to set the requsted options.
For now failure to set the option is only logged in debug mode and
the operation to import credentials does not fail if the allowed
enctypes cannot be set.
Signed-off-by: Simo Sorce <simo@redhat.com>
Reviewed-by: Günther Deschner <gdeschner@redhat.com>
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The krb5 mechanism supports multiple oids for historical reasons.
Add a function to generically check if a mech oid is any of the krb5
mechanism known oids for functions that do not care which exact oid is
being used of the krb5 family.
Signed-off-by: Simo Sorce <simo@redhat.com>
Reviewed-by: Günther Deschner <gdeschner@redhat.com>
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Add %U support which will insert the user uid number instead of name.
Fix %% support by actually removing one of the % charcters
Fix %<invalid> sequence by actually bailing out if one is found.
Add GPDEBUG statements to indicate what went wrong.
Signed-off-by: Simo Sorce <simo@redhat.com>
Reviewed-by: Günther Deschner <gdeschner@redhat.com>
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Signed-off-by: Günther Deschner <gdeschner@redhat.com>
Reviewed-by: Simo Sorce <simo@redhat.com>
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Adds options to set a sepcific proxy behavior for both the client and
the server subprocesses by setting the GSSPROXY_BEHAVIOR environment
variable after forking.
Signed-off-by: Günther Deschner <gdeschner@redhat.com>
Reviewed-by: Simo Sorce <simo@redhat.com>
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Signed-off-by: Simo Sorce <simo@redhat.com>
Reviewed-by: Günther Deschner <gdeschner@redhat.com>
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We need to do the wrapping in order to get back an actual local context.
Otherwise we get back an interposed context from gssapi.
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Wrap the token in a helper function so that the code can be reused elsewhere.
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Signed-off-by: Günther Deschner <gdeschner@redhat.com>
Reviewed-by: Simo Sorce <simo@redhat.com>
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Reviewed-by: Simo Sorce <simo@redhat.com>
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Reviewed-by: Simo Sorce <simo@redhat.com>
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Reviewed-by: Simo Sorce <simo@redhat.com>
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