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| author | J. Bruce Fields <bfields@citi.umich.edu> | 2007-07-17 04:04:51 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-17 10:23:08 -0700 |
| commit | 4796f45740bc6f2e3e6cc14e7ed481b38bd0bd39 (patch) | |
| tree | 1f24645e86f87511350e149525245f2b215ba55a /fs/nfsd | |
| parent | dcb488a3b7ac3987e21148f44f641c9b2e734232 (diff) | |
| download | linux-4796f45740bc6f2e3e6cc14e7ed481b38bd0bd39.tar.gz linux-4796f45740bc6f2e3e6cc14e7ed481b38bd0bd39.tar.bz2 linux-4796f45740bc6f2e3e6cc14e7ed481b38bd0bd39.zip | |
knfsd: nfsd4: secinfo handling without secinfo= option
We could return some sort of error in the case where someone asks for secinfo
on an export without the secinfo= option set--that'd be no worse than what
we've been doing. But it's not really correct. So, hack up an approximate
secinfo response in that case--it may not be complete, but it'll tell the
client at least one acceptable security flavor.
Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/nfsd')
| -rw-r--r-- | fs/nfsd/nfs4xdr.c | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 864498f8f2d9..b3d55c6747fd 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -57,6 +57,7 @@ #include <linux/nfs4.h> #include <linux/nfs4_acl.h> #include <linux/sunrpc/gss_api.h> +#include <linux/sunrpc/svcauth_gss.h> #define NFSDDBG_FACILITY NFSDDBG_XDR @@ -2454,15 +2455,38 @@ nfsd4_encode_secinfo(struct nfsd4_compoundres *resp, int nfserr, { int i = 0; struct svc_export *exp = secinfo->si_exp; + u32 nflavs; + struct exp_flavor_info *flavs; + struct exp_flavor_info def_flavs[2]; ENCODE_HEAD; if (nfserr) goto out; + if (exp->ex_nflavors) { + flavs = exp->ex_flavors; + nflavs = exp->ex_nflavors; + } else { /* Handling of some defaults in absence of real secinfo: */ + flavs = def_flavs; + if (exp->ex_client->flavour->flavour == RPC_AUTH_UNIX) { + nflavs = 2; + flavs[0].pseudoflavor = RPC_AUTH_UNIX; + flavs[1].pseudoflavor = RPC_AUTH_NULL; + } else if (exp->ex_client->flavour->flavour == RPC_AUTH_GSS) { + nflavs = 1; + flavs[0].pseudoflavor + = svcauth_gss_flavor(exp->ex_client); + } else { + nflavs = 1; + flavs[0].pseudoflavor + = exp->ex_client->flavour->flavour; + } + } + RESERVE_SPACE(4); - WRITE32(exp->ex_nflavors); + WRITE32(nflavs); ADJUST_ARGS(); - for (i = 0; i < exp->ex_nflavors; i++) { - u32 flav = exp->ex_flavors[i].pseudoflavor; + for (i = 0; i < nflavs; i++) { + u32 flav = flavs[i].pseudoflavor; struct gss_api_mech *gm = gss_mech_get_by_pseudoflavor(flav); if (gm) { |