xnu-3247.1.106.tar.gz

[apple/xnu.git] / bsd / nfs / nfs_gss.h

diff --git a/bsd/nfs/nfs_gss.h b/bsd/nfs/nfs_gss.h
index 7c7b245dd61a073ca9f5e050c4fddceddfac3af7..e590eb1bf853e8647681ba2c1178390b98af5c60 100644 (file)
--- a/bsd/nfs/nfs_gss.h
+++ b/bsd/nfs/nfs_gss.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2007-2013 Apple Inc. All rights reserved.
+ * Copyright (c) 2007-2015 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -48,7 +48,6 @@ enum rpcsec_gss_service {
        RPCSEC_GSS_SVC_NONE             = 1,    // sec=krb5
        RPCSEC_GSS_SVC_INTEGRITY        = 2,    // sec=krb5i
        RPCSEC_GSS_SVC_PRIVACY          = 3,    // sec=krb5p
-       RPCSEC_GSS_SVC_SYS              = 4     // sec=sys (fallback)
 };
 
 /* encoded krb5 OID */
@@ -92,12 +91,15 @@ typedef uint32_t OM_uint32;
 #define GSS_SVC_MAXCONTEXTS            500000          // Max contexts supported
 #define GSS_SVC_SEQWINDOW              256             // Server's sequence window
 #define GSS_CLNT_SEQLISTMAX            32              // Max length of req seq num list
-#define GSS_CLNT_SYS_VALID             300             // Valid time (sec) for failover ctx
 
 #define SKEYLEN        8                       // length of DES key
 #define SKEYLEN3 24                    // length of DES3 keyboard
 #define MAX_SKEYLEN    SKEYLEN3
 
+#define GSS_MAX_NEG_CACHE_ENTRIES 16
+#define GSS_NEG_CACHE_TO 3
+#define GSS_PRINT_DELAY         (8 * 3600)     // Wait day before printing the same error message
+
 typedef struct {
        uint32_t type;          // See defines below
        uint32_t keybytes;      // Session key length bytes;
@@ -129,7 +131,7 @@ struct nfs_gss_clnt_ctx {
        thread_t                gss_clnt_thread;        // Thread creating context
        TAILQ_ENTRY(nfs_gss_clnt_ctx)   gss_clnt_entries;
        uint32_t                gss_clnt_flags;         // Flag bits - see below
-       uint32_t                gss_clnt_refcnt;        // Reference count
+       int32_t                 gss_clnt_refcnt;        // Reference count
        kauth_cred_t            gss_clnt_cred;          // Owner of this context
        uint8_t                 *gss_clnt_principal;    // Principal to use for this credential
        uint32_t                gss_clnt_prinlen;       // Length of principal
@@ -140,7 +142,7 @@ struct nfs_gss_clnt_ctx {
        uint32_t                gss_clnt_service;       // Indicates krb5, krb5i or krb5p
        uint8_t                 *gss_clnt_handle;       // Identifies server context
        uint32_t                gss_clnt_handle_len;    // Size of server's ctx handle
-       time_t                  gss_clnt_ctime;         // When context was created
+       time_t                  gss_clnt_nctime;        // When context was put in the negative cache
        uint32_t                gss_clnt_seqwin;        // Server's seq num window
        uint32_t                *gss_clnt_seqbits;      // Bitmap to track seq numbers in use
        mach_port_t             gss_clnt_mport;         // Mach port for gssd upcall
@@ -152,10 +154,11 @@ struct nfs_gss_clnt_ctx {
        gssd_ctx                gss_clnt_context;       // Opaque context handle from gssd
        uint8_t                 *gss_clnt_token;        // GSS token exchanged via gssd & server
        uint32_t                gss_clnt_tokenlen;      // Length of token
-       gss_key_info            gss_clnt_kinfo;         // GSS key info
+       gss_key_info            *gss_clnt_kinfo;                // GSS key info
        uint32_t                gss_clnt_gssd_flags;    // Special flag bits to gssd
        uint32_t                gss_clnt_major;         // GSS major result from gssd or server
        uint32_t                gss_clnt_minor;         // GSS minor result from gssd or server
+       time_t                  gss_clnt_ptime;         // When last error message was printed
 };
 
 /*
@@ -163,9 +166,10 @@ struct nfs_gss_clnt_ctx {
  */
 #define GSS_CTX_COMPLETE       0x00000001      // Context is complete
 #define GSS_CTX_INVAL          0x00000002      // Context is invalid
-#define GSS_CTX_INCOMPLETE     0x00000004      // Context needs to be inited
+#define GSS_CTX_STICKY         0x00000004      // Context has been set by user
 #define GSS_NEEDSEQ            0x00000008      // Need a sequence number
 #define GSS_NEEDCTX            0x00000010      // Need the context
+#define GSS_CTX_DESTROY                0x00000020      // Context is being destroyed, don't cache
 
 /*
  * The server's RPCSEC_GSS context information
@@ -212,9 +216,15 @@ LIST_HEAD(nfs_gss_svc_ctx_hashhead, nfs_gss_svc_ctx);
 #define GSS_TIMER_PERIOD       300             // seconds
 #define MSECS_PER_SEC          1000
 
+#define auth_is_kerberized(auth) \
+       (auth == RPCAUTH_KRB5 || \
+        auth == RPCAUTH_KRB5I || \
+        auth == RPCAUTH_KRB5P)
+
 __BEGIN_DECLS
 
 void   nfs_gss_init(void);
+uid_t  nfs_cred_getasid2uid(kauth_cred_t);
 int    nfs_gss_clnt_cred_put(struct nfsreq *, struct nfsm_chain *, mbuf_t);
 int    nfs_gss_clnt_verf_get(struct nfsreq *, struct nfsm_chain *,
                uint32_t, uint32_t, uint32_t *);
@@ -224,7 +234,9 @@ int nfs_gss_clnt_ctx_renew(struct nfsreq *);
 void   nfs_gss_clnt_ctx_ref(struct nfsreq *, struct nfs_gss_clnt_ctx *);
 void   nfs_gss_clnt_ctx_unref(struct nfsreq *);
 void   nfs_gss_clnt_ctx_unmount(struct nfsmount *);
-int    nfs_gss_clnt_ctx_destroy(struct nfsmount *, kauth_cred_t cred);
+int    nfs_gss_clnt_ctx_remove(struct nfsmount *, kauth_cred_t);
+int    nfs_gss_clnt_ctx_set_principal(struct nfsmount *, vfs_context_t, uint8_t *, uint32_t, uint32_t);
+int    nfs_gss_clnt_ctx_get_principal(struct nfsmount *, vfs_context_t, struct user_nfs_gss_principal *);
 int    nfs_gss_svc_cred_get(struct nfsrv_descript *, struct nfsm_chain *);
 int    nfs_gss_svc_verf_put(struct nfsrv_descript *, struct nfsm_chain *);
 int    nfs_gss_svc_ctx_init(struct nfsrv_descript *, struct nfsrv_sock *, mbuf_t *);