This patchset implements a new upcall mechanism that uses the sunrpc client to talk to gssproxy[1], a new userspace daemon to handle gssapi operations on behalf of other processes on the system. The main driver for this new mechanism is to overcome limitations with the current daemon and upcall. The current code cannot handle tickets larger than approximatively 2k and cannot handle large user credentials set to be set in the kernel. These patches have been tested against the development version of gssproxy tagged as kernel_v0.1 in the master repo[2]. I have tested walking into mountpoints using tickets artificially pumped up to 64k and the user is properly authorized, after the accept_se_context call is performed through the new upcall mechanism and gssproxy. The gssproxy has the potential of handling also init_sec_context calls, but at the moment the only targeted system is nfsd. Simo. Simo Sorce (5): SUNRPC: Document a bit RPCGSS handling in the NFS Server SUNRPC: conditionally return endtime from import_sec_context SUNRPC: split upcall function to extract reusable parts SUNRPC: Add RPC based upcall mechanism for RPCGSS auth SUNRPC: Use gssproxy upcall for nfsd's RPCGSS authentication. Documentation/filesystems/nfs/00-INDEX | 2 + Documentation/filesystems/nfs/knfsd-rpcgss.txt | 65 ++ include/linux/sunrpc/auth_gss.h | 3 + include/linux/sunrpc/gss_api.h | 2 + include/linux/sunrpc/svcauth_gss.h | 2 +- net/sunrpc/auth_gss/Makefile | 4 +- net/sunrpc/auth_gss/auth_gss.c | 11 +- net/sunrpc/auth_gss/gss_krb5_mech.c | 3 + net/sunrpc/auth_gss/gss_mech_switch.c | 5 +- net/sunrpc/auth_gss/gss_rpc_upcall.c | 341 +++++++++ net/sunrpc/auth_gss/gss_rpc_upcall.h | 43 ++ net/sunrpc/auth_gss/gss_rpc_xdr.c | 904 ++++++++++++++++++++++++ net/sunrpc/auth_gss/gss_rpc_xdr.h | 269 +++++++ net/sunrpc/auth_gss/svcauth_gss.c | 342 ++++++++-- 14 files changed, 1945 insertions(+), 51 deletions(-) create mode 100644 Documentation/filesystems/nfs/knfsd-rpcgss.txt create mode 100644 net/sunrpc/auth_gss/gss_rpc_upcall.c create mode 100644 net/sunrpc/auth_gss/gss_rpc_upcall.h create mode 100644 net/sunrpc/auth_gss/gss_rpc_xdr.c create mode 100644 net/sunrpc/auth_gss/gss_rpc_xdr.h -- 1.7.7.6 -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
