/*
- * Copyright (c) 2007 Apple Inc. All rights reserved.
+ * Copyright (c) 2007-2015 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#define _NFS_NFS_GSS_H_
#include <gssd/gssd_mach.h>
-#include <libkern/crypto/md5.h>
-#include <crypto/des/des_locl.h>
#include <sys/param.h>
+#include <nfs/nfs_ioctl.h>
+#include <libkern/crypto/des.h>
#define RPCSEC_GSS 6
#define RPCSEC_GSS_VERS_1 1
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 */
+extern u_char krb5_mech[11];
+
/*
* GSS-API things
*/
+typedef uint32_t OM_uint32;
+
#define GSS_S_COMPLETE 0
#define GSS_S_CONTINUE_NEEDED 1
+/*
+ * Some "helper" definitions to make the status code macros obvious.
+ * From gssapi.h:
+ */
+#define GSS_C_CALLING_ERROR_OFFSET 24
+#define GSS_C_ROUTINE_ERROR_OFFSET 16
+#define GSS_C_SUPPLEMENTARY_OFFSET 0
+#define GSS_C_CALLING_ERROR_MASK ((OM_uint32) 0377ul)
+#define GSS_C_ROUTINE_ERROR_MASK ((OM_uint32) 0377ul)
+#define GSS_C_SUPPLEMENTARY_MASK ((OM_uint32) 0177777ul)
+
+/*
+ * The macros that test status codes for error conditions. Note that the
+ * GSS_ERROR() macro has changed slightly from the V1 GSSAPI so that it now
+ * evaluates its argument only once.
+ */
+#define GSS_CALLING_ERROR(x) \
+ ((x) & (GSS_C_CALLING_ERROR_MASK << GSS_C_CALLING_ERROR_OFFSET))
+#define GSS_ROUTINE_ERROR(x) \
+ ((x) & (GSS_C_ROUTINE_ERROR_MASK << GSS_C_ROUTINE_ERROR_OFFSET))
+#define GSS_SUPPLEMENTARY_INFO(x) \
+ ((x) & (GSS_C_SUPPLEMENTARY_MASK << GSS_C_SUPPLEMENTARY_OFFSET))
+#define GSS_ERROR(x) \
+ ((x) & ((GSS_C_CALLING_ERROR_MASK << GSS_C_CALLING_ERROR_OFFSET) | \
+ (GSS_C_ROUTINE_ERROR_MASK << GSS_C_ROUTINE_ERROR_OFFSET)))
+
#define GSS_MAXSEQ 0x80000000 // The biggest sequence number
#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;
+ uint32_t hash_len;
+ u_char skey[MAX_SKEYLEN]; // Session key;
+ union {
+ struct {
+ des_cblock *key;
+ des_cbc_key_schedule gss_sched;
+ des_cbc_key_schedule gss_sched_Ke;
+ } des;
+ struct {
+ des_cblock (*key)[3];
+ des_cblock ckey[3];
+ des3_cbc_key_schedule gss_sched;
+ } des3;
+ } ks_u;
+} gss_key_info;
+
+#define NFS_GSS_0DES 0 // Not DES or uninitialized
+#define NFS_GSS_1DES 1 // Single DES with DES_MAC_MD5
+#define NFS_GSS_3DES 2 // Triple EDE DES KD with SHA1
/*
* The client's RPCSEC_GSS context information
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
- uid_t gss_clnt_uid; // Owner of this context
+ 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
+ gssd_nametype gss_clnt_prinnt; // Name type of principal
+ char *gss_clnt_display; // display name of principal
uint32_t gss_clnt_proc; // Current GSS proc for cred
uint32_t gss_clnt_seqnum; // GSS sequence number
uint32_t gss_clnt_service; // Indicates krb5, krb5i or krb5p
- u_char *gss_clnt_handle; // Identifies server context
+ 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
- u_char *gss_clnt_verf; // RPC verifier from server
- uint64_t gss_clnt_gssd_verf; // Verifier from gssd
- char *gss_clnt_svcname; // Service name e.g. "nfs/big.apple.com"
- uint32_t gss_clnt_cred_handle; // Opaque cred handle from gssd
- uint32_t gss_clnt_context; // Opaque context handle from gssd
- u_char *gss_clnt_token; // GSS token exchanged via gssd & server
+ uint8_t *gss_clnt_verf; // RPC verifier from server
+ uint8_t *gss_clnt_svcname; // Service name e.g. "nfs/big.apple.com"
+ uint32_t gss_clnt_svcnamlen; // Service name length
+ gssd_nametype gss_clnt_svcnt; // Service name type
+ gssd_cred gss_clnt_cred_handle; // Opaque cred handle from gssd
+ 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
- u_char gss_clnt_skey[SKEYLEN]; // Context session key (DES)
- des_key_schedule gss_clnt_sched; // Schedule derived from key
+ 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
};
/*
*/
#define GSS_CTX_COMPLETE 0x00000001 // Context is complete
#define GSS_CTX_INVAL 0x00000002 // Context is invalid
-#define GSS_NEEDSEQ 0x00000004 // Need a sequence number
-#define GSS_NEEDCTX 0x00000008 // Need the context
+#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
lck_mtx_t *gss_svc_mtx;
LIST_ENTRY(nfs_gss_svc_ctx) gss_svc_entries;
uint32_t gss_svc_handle; // Identifies server context to client
+ uint32_t gss_svc_refcnt; // Reference count
uint32_t gss_svc_proc; // Current GSS proc from cred
uid_t gss_svc_uid; // UID of this user
gid_t gss_svc_gids[NGROUPS]; // GIDs of this user
uint32_t gss_svc_ngroups; // Count of gids
- uint64_t gss_svc_expiretime; // Delete ctx if we exceed this
+ uint64_t gss_svc_incarnation; // Delete ctx if we exceed this + ttl value
uint32_t gss_svc_seqmax; // Current max GSS sequence number
uint32_t gss_svc_seqwin; // GSS sequence number window
uint32_t *gss_svc_seqbits; // Bitmap to track seq numbers
- uint64_t gss_svc_gssd_verf; // Verifier from gssd
- uint32_t gss_svc_cred_handle; // Opaque cred handle from gssd
- uint32_t gss_svc_context; // Opaque context handle from gssd
+ gssd_cred gss_svc_cred_handle; // Opaque cred handle from gssd
+ gssd_ctx gss_svc_context; // Opaque context handle from gssd
u_char *gss_svc_token; // GSS token exchanged via gssd & client
uint32_t gss_svc_tokenlen; // Length of token
- u_char gss_svc_skey[SKEYLEN]; // Context session key (DES)
- des_key_schedule gss_svc_sched; // Schedule derived from key
+ gss_key_info gss_svc_kinfo; // Session key info
uint32_t gss_svc_major; // GSS major result from gssd
uint32_t gss_svc_minor; // GSS minor result from gssd
};
*/
#define GSS_CTX_PEND 5 // seconds
#define GSS_CTX_EXPIRE (8 * 3600) // seconds
+#define GSS_CTX_TTL_MIN 1 // seconds
#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 *);
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);
+void nfs_gss_clnt_ctx_unmount(struct nfsmount *);
+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 *);
int nfs_gss_svc_prepare_reply(struct nfsrv_descript *, struct nfsm_chain *);
int nfs_gss_svc_protect_reply(struct nfsrv_descript *, mbuf_t);
+void nfs_gss_svc_ctx_deref(struct nfs_gss_svc_ctx *);
void nfs_gss_svc_cleanup(void);
__END_DECLS
projects / apple / xnu.git / blobdiff