diff options
Diffstat (limited to 'usr/src/uts/common/fs/smbsrv/smb_dfs.c')
| -rw-r--r-- | usr/src/uts/common/fs/smbsrv/smb_dfs.c | 127 |
1 files changed, 117 insertions, 10 deletions
diff --git a/usr/src/uts/common/fs/smbsrv/smb_dfs.c b/usr/src/uts/common/fs/smbsrv/smb_dfs.c index ef199d4c8e..80d4479e68 100644 --- a/usr/src/uts/common/fs/smbsrv/smb_dfs.c +++ b/usr/src/uts/common/fs/smbsrv/smb_dfs.c @@ -83,6 +83,7 @@ static uint32_t smb_dfs_referrals_get(smb_request_t *, char *, dfs_reftype_t, dfs_referral_response_t *); static void smb_dfs_referrals_free(dfs_referral_response_t *); static uint16_t smb_dfs_referrals_unclen(dfs_info_t *, uint16_t); +static uint32_t smb_dfs_get_referrals_ex(smb_request_t *, smb_fsctl_t *); /* * Handle device type FILE_DEVICE_DFS @@ -108,7 +109,9 @@ smb_dfs_fsctl(smb_request_t *sr, smb_fsctl_t *fsctl) case FSCTL_DFS_GET_REFERRALS: status = smb_dfs_get_referrals(sr, fsctl); break; - case FSCTL_DFS_GET_REFERRALS_EX: /* XXX - todo */ + case FSCTL_DFS_GET_REFERRALS_EX: + status = smb_dfs_get_referrals_ex(sr, fsctl); + break; default: /* * MS-SMB2 suggests INVALID_DEVICE_REQUEST @@ -122,6 +125,119 @@ smb_dfs_fsctl(smb_request_t *sr, smb_fsctl_t *fsctl) } /* + * XXX Instead of decoding the referral request and encoding + * the response here (in-kernel) we could pass the given + * request buffer in our door call, and let that return the + * response buffer ready to stuff into out_mbc. That would + * allow all this decoding/encoding to happen at user-level. + * (and most of this file would go away. :-) + */ + +/* + * See [MS-DFSC] for details about this command + * Handles FSCTL_DFS_GET_REFERRALS_EX (only) + */ +uint32_t +smb_dfs_get_referrals_ex(smb_request_t *sr, smb_fsctl_t *fsctl) +{ + dfs_info_t *referrals; + dfs_referral_response_t refrsp; + dfs_reftype_t reftype; + char *path; + uint16_t maxver; + uint16_t flags; + uint16_t fnlen; + uint32_t datalen; + uint32_t status; + int rc; + + /* + * The caller checks this, because the error reporting method + * varies across SMB versions. + */ + ASSERT(STYPE_ISIPC(sr->tid_tree->t_res_type)); + + /* + * Decode fixed part. + * Input data is (w) MaxReferralLevel, (w) Flags, + * (l) RequestDataLength, ... variable data ... + */ + rc = smb_mbc_decodef(fsctl->in_mbc, "wwl", + &maxver, &flags, &datalen); + if (rc != 0) + return (NT_STATUS_INVALID_PARAMETER); + + /* + * Decode variable part: + * (w) file name length, (u) filename, + * ( if flags & 1 ) + * (w) site name len, (u) site name + * We don't decode or use the site name + */ + if (MBC_ROOM_FOR(fsctl->in_mbc, datalen) == 0) + return (NT_STATUS_INVALID_PARAMETER); + rc = smb_mbc_decodef(fsctl->in_mbc, "%wu", + sr, &fnlen, &path); + if (rc != 0) + return (NT_STATUS_INVALID_PARAMETER); + + reftype = smb_dfs_get_reftype((const char *)path); + switch (reftype) { + case DFS_REFERRAL_INVALID: + /* Need to check the error for this case */ + return (NT_STATUS_INVALID_PARAMETER); + + case DFS_REFERRAL_DOMAIN: + case DFS_REFERRAL_DC: + /* MS-DFSC: this error is returned by non-DC root */ + return (NT_STATUS_INVALID_PARAMETER); + + case DFS_REFERRAL_SYSVOL: + /* MS-DFSC: this error is returned by non-DC root */ + return (NT_STATUS_NO_SUCH_DEVICE); + + default: + break; + } + + status = smb_dfs_referrals_get(sr, path, reftype, &refrsp); + if (status != NT_STATUS_SUCCESS) + return (status); + + referrals = &refrsp.rp_referrals; + smb_dfs_encode_hdr(fsctl->out_mbc, referrals); + + /* + * Server may respond with any referral version at or below + * the maximum specified in the request. + */ + switch (maxver) { + case DFS_REFERRAL_V1: + status = smb_dfs_encode_refv1(sr, fsctl->out_mbc, referrals); + break; + + case DFS_REFERRAL_V2: + status = smb_dfs_encode_refv2(sr, fsctl->out_mbc, referrals); + break; + + case DFS_REFERRAL_V3: + status = smb_dfs_encode_refv3x(sr, fsctl->out_mbc, referrals, + DFS_REFERRAL_V3); + break; + + case DFS_REFERRAL_V4: + default: + status = smb_dfs_encode_refv3x(sr, fsctl->out_mbc, referrals, + DFS_REFERRAL_V4); + break; + } + + smb_dfs_referrals_free(&refrsp); + + return (status); +} + +/* * Note: SMB1 callers in smb_trans2_dfs.c * smb_com_trans2_report_dfs_inconsistency * smb_com_trans2_get_dfs_referral @@ -149,15 +265,6 @@ smb_dfs_get_referrals(smb_request_t *sr, smb_fsctl_t *fsctl) ASSERT(STYPE_ISIPC(sr->tid_tree->t_res_type)); /* - * XXX Instead of decoding the referral request and encoding - * the response here (in-kernel) we could pass the given - * request buffer in our door call, and let that return the - * response buffer ready to stuff into out_mbc. That would - * allow all this decoding/encoding to happen at user-level. - * (and most of this file would go away. :-) - */ - - /* * Input data is (w) MaxReferralLevel, (U) path */ rc = smb_mbc_decodef(fsctl->in_mbc, "%wu", |