| 1 | diff -U1000 -r orig-1.4.1/src/afs/afs.h scripts-1.4.1/src/afs/afs.h | 
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| 2 | --- orig-1.4.1/src/afs/afs.h    2006-02-17 16:58:33.000000000 -0500 | 
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| 3 | +++ scripts-1.4.1/src/afs/afs.h 2006-10-02 17:35:12.000000000 -0400 | 
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| 4 | ... | 
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| 5 | +#define AFSAGENT_UID (101) | 
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| 6 | +#define HTTPD_UID (48) | 
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| 7 | +#define DAEMON_SCRIPTS_PTSID (33554596) | 
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| 8 | struct vrequest { | 
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| 9 | afs_int32 uid;             /* user id making the request */ | 
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| 10 | +    afs_int32 realuid; | 
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| 11 | afs_int32 busyCount;       /* how many busies we've seen so far */ | 
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| 12 | afs_int32 flags;           /* things like O_SYNC, O_NONBLOCK go here */ | 
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| 13 | char initd;                        /* if non-zero, non-uid fields meaningful */ | 
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| 14 | char accessError;          /* flags for overriding error return code */ | 
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| 15 | char volumeError;          /* encountered a missing or busy volume */ | 
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| 16 | char networkError;         /* encountered network problems */ | 
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| 17 | char permWriteError;       /* fileserver returns permenent error. */ | 
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| 18 | }; | 
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| 19 |  | 
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| 20 | struct unixuser { | 
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| 21 | struct unixuser *next;     /* next hash pointer */ | 
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| 22 | afs_int32 uid;             /* search based on uid and cell */ | 
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| 23 | afs_int32 cell; | 
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| 24 | afs_int32 vid;             /* corresponding vice id in specified cell */ | 
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| 25 | short refCount;            /* reference count for allocation */ | 
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| 26 | char states;               /* flag info */ | 
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| 27 | afs_int32 tokenTime;       /* last time tokens were set, used for timing out conn data */ | 
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| 28 | afs_int32 stLen;           /* ticket length (if kerberos, includes kvno at head) */ | 
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| 29 | char *stp;                 /* pointer to ticket itself */ | 
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| 30 | struct ClearToken ct; | 
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| 31 | struct afs_exporter *exporter;     /* more info about the exporter for the remote user */ | 
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| 32 | }; | 
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| 33 |  | 
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| 34 | struct volume { | 
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| 35 | /* One structure per volume, describing where the volume is located | 
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| 36 | * and where its mount points are. */ | 
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| 37 | struct volume *next;       /* Next volume in hash list. */ | 
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| 38 | afs_int32 cell;            /* the cell in which the volume resides */ | 
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| 39 | afs_rwlock_t lock;         /* the lock for this structure */ | 
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| 40 | afs_int32 volume;          /* This volume's ID number. */ | 
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| 41 | char *name;                        /* This volume's name, or 0 if unknown */ | 
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| 42 | struct server *serverHost[MAXHOSTS];       /* servers serving this volume */ | 
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| 43 | enum repstate status[MAXHOSTS];    /* busy, offline, etc */ | 
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| 44 | struct VenusFid dotdot;    /* dir to access as .. */ | 
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| 45 | struct VenusFid mtpoint;   /* The mount point for this volume. */ | 
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| 46 | afs_int32 rootVnode, rootUnique;   /* Volume's root fid */ | 
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| 47 | afs_int32 roVol; | 
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| 48 | afs_int32 backVol; | 
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| 49 | afs_int32 rwVol;           /* For r/o vols, original read/write volume. */ | 
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| 50 | afs_int32 accessTime;      /* last time we used it */ | 
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| 51 | afs_int32 vtix;            /* volume table index */ | 
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| 52 | afs_int32 copyDate;                /* copyDate field, for tracking vol releases */ | 
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| 53 | afs_int32 expireTime;      /* for per-volume callbacks... */ | 
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| 54 | short refCount;            /* reference count for allocation */ | 
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| 55 | char states;               /* here for alignment reasons */ | 
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| 56 | }; | 
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| 57 |  | 
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| 58 | struct vcache { | 
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| 59 | #if defined(AFS_XBSD_ENV) || defined(AFS_DARWIN_ENV) || (defined(AFS_LINUX22_ENV) && !defined(STRUCT_SUPER_HAS_ALLOC_INODE)) | 
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| 60 | struct vnode *v; | 
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| 61 | #else | 
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| 62 | struct vnode v;            /* Has reference count in v.v_count */ | 
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| 63 | #endif | 
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| 64 | struct afs_q vlruq;                /* lru q next and prev */ | 
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| 65 | #if !defined(AFS_LINUX22_ENV) | 
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| 66 | struct vcache *nextfree;   /* next on free list (if free) */ | 
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| 67 | #endif | 
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| 68 | struct vcache *hnext;      /* Hash next */ | 
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| 69 | struct afs_q vhashq;       /* Hashed per-volume list */ | 
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| 70 | struct VenusFid fid; | 
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| 71 | struct mstat { | 
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| 72 | afs_size_t Length; | 
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| 73 | afs_hyper_t DataVersion; | 
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| 74 | afs_uint32 Date; | 
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| 75 | afs_uint32 Owner; | 
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| 76 | afs_uint32 Group; | 
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| 77 | afs_uint16 Mode;        /* XXXX Should be afs_int32 XXXX */ | 
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| 78 | afs_uint16 LinkCount; | 
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| 79 | #ifdef AFS_DARWIN80_ENV | 
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| 80 | afs_uint16 Type; | 
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| 81 | #else | 
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| 82 | /* vnode type is in v.v_type */ | 
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| 83 | #endif | 
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| 84 | } m; | 
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| 85 | afs_rwlock_t lock;         /* The lock on the vcache contents. */ | 
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| 86 | #if    defined(AFS_SUN5_ENV) | 
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| 87 | /* Lock used to protect the activeV, multipage, and vstates fields. | 
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| 88 | * Do not try to get the vcache lock when the vlock is held */ | 
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| 89 | afs_rwlock_t vlock; | 
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| 90 | #endif                         /* defined(AFS_SUN5_ENV) */ | 
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| 91 | #if    defined(AFS_SUN5_ENV) | 
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| 92 | krwlock_t rwlock; | 
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| 93 | struct cred *credp; | 
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| 94 | #endif | 
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| 95 | #ifdef AFS_BOZONLOCK_ENV | 
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| 96 | afs_bozoLock_t pvnLock;    /* see locks.x */ | 
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| 97 | #endif | 
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| 98 | #ifdef AFS_AIX32_ENV | 
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| 99 | afs_lock_t pvmlock; | 
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| 100 | vmhandle_t vmh; | 
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| 101 | #if defined(AFS_AIX51_ENV) | 
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| 102 | vmid_t segid; | 
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| 103 | #else | 
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| 104 | int segid; | 
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| 105 | #endif | 
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| 106 | struct ucred *credp; | 
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| 107 | #endif | 
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| 108 | #ifdef AFS_AIX_ENV | 
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| 109 | int ownslock;              /* pid of owner of excl lock, else 0 - defect 3083 */ | 
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| 110 | #endif | 
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| 111 | #ifdef AFS_DARWIN80_ENV | 
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| 112 | lck_mtx_t *rwlock; | 
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| 113 | #elif defined(AFS_DARWIN_ENV) | 
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| 114 | struct lock__bsd__ rwlock; | 
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| 115 | #endif | 
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| 116 | #ifdef AFS_XBSD_ENV | 
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| 117 | struct lock rwlock; | 
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| 118 | #endif | 
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| 119 | afs_int32 parentVnode;     /* Parent dir, if a file. */ | 
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| 120 | afs_int32 parentUnique; | 
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| 121 | struct VenusFid *mvid;     /* Either parent dir (if root) or root (if mt pt) */ | 
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| 122 | char *linkData;            /* Link data if a symlink. */ | 
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| 123 | afs_hyper_t flushDV;       /* data version last flushed from text */ | 
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| 124 | afs_hyper_t mapDV;         /* data version last flushed from map */ | 
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| 125 | afs_size_t truncPos;       /* truncate file to this position at next store */ | 
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| 126 | struct server *callback;   /* The callback host, if any */ | 
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| 127 | afs_uint32 cbExpires;      /* time the callback expires */ | 
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| 128 | struct afs_q callsort;     /* queue in expiry order, sort of */ | 
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| 129 | struct axscache *Access;   /* a list of cached access bits */ | 
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| 130 | afs_int32 anyAccess;       /* System:AnyUser's access to this. */ | 
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| 131 | afs_int32 last_looker;     /* pag/uid from last lookup here */ | 
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| 132 | #if    defined(AFS_SUN5_ENV) | 
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| 133 | afs_int32 activeV; | 
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| 134 | #endif                         /* defined(AFS_SUN5_ENV) */ | 
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| 135 | struct SimpleLocks *slocks; | 
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| 136 | short opens;               /* The numbers of opens, read or write, on this file. */ | 
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| 137 | short execsOrWriters;      /* The number of execs (if < 0) or writers (if > 0) of | 
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| 138 | * this file. */ | 
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| 139 | short flockCount;          /* count of flock readers, or -1 if writer */ | 
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| 140 | char mvstat;               /* 0->normal, 1->mt pt, 2->root. */ | 
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| 141 | afs_uint32 states;         /* state bits */ | 
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| 142 | #if    defined(AFS_SUN5_ENV) | 
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| 143 | afs_uint32 vstates;                /* vstate bits */ | 
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| 144 | #endif                         /* defined(AFS_SUN5_ENV) */ | 
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| 145 | struct dcache *dchint; | 
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| 146 | #ifdef AFS_LINUX22_ENV | 
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| 147 | u_short mapcnt;            /* Number of mappings of this file. */ | 
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| 148 | #endif | 
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| 149 | #if defined(AFS_SGI_ENV) | 
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| 150 | daddr_t lastr;             /* for read-ahead */ | 
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| 151 | #ifdef AFS_SGI64_ENV | 
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| 152 | uint64_t vc_rwlockid;      /* kthread owning rwlock */ | 
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| 153 | #else | 
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| 154 | short vc_rwlockid;         /* pid of process owning rwlock */ | 
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| 155 | #endif | 
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| 156 | short vc_locktrips;                /* # of rwlock reacquisitions */ | 
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| 157 | sema_t vc_rwlock;          /* vop_rwlock for afs */ | 
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| 158 | pgno_t mapcnt;             /* # of pages mapped */ | 
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| 159 | struct cred *cred;         /* last writer's cred */ | 
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| 160 | #ifdef AFS_SGI64_ENV | 
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| 161 | struct bhv_desc vc_bhv_desc;       /* vnode's behavior data. */ | 
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| 162 | #endif | 
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| 163 | #endif                         /* AFS_SGI_ENV */ | 
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| 164 | afs_int32 vc_error;                /* stash write error for this vnode. */ | 
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| 165 | int xlatordv;              /* Used by nfs xlator */ | 
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| 166 | struct AFS_UCRED *uncred; | 
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| 167 | int asynchrony;            /* num kbytes to store behind */ | 
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| 168 | #ifdef AFS_SUN5_ENV | 
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| 169 | short multiPage;           /* count of multi-page getpages in progress */ | 
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| 170 | #endif | 
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| 171 | }; | 
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| 172 | diff -U1000 -r orig-1.4.1/src/afs/afs_osi_pag.c scripts-1.4.1/src/afs/afs_osi_pag.c | 
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| 173 | --- orig-1.4.1/src/afs/afs_osi_pag.c    2005-10-05 01:58:27.000000000 -0400 | 
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| 174 | +++ scripts-1.4.1/src/afs/afs_osi_pag.c 2006-10-02 17:35:12.000000000 -0400 | 
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| 175 | /* Local variables */ | 
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| 176 |  | 
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| 177 | +afs_int32 globalpag; | 
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| 178 | + | 
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| 179 | /* | 
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| 180 | * Pags are implemented as follows: the set of groups whose long | 
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| 181 | * representation is '41XXXXXX' hex are used to represent the pags. | 
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| 182 | * Being a member of such a group means you are authenticated as pag | 
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| 183 | * XXXXXX (0x41 == 'A', for Andrew).  You are never authenticated as | 
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| 184 | * multiple pags at once. | 
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| 185 | * | 
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| 186 | * The function afs_InitReq takes a credential field and formats the | 
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| 187 | * corresponding venus request structure.  The uid field in the | 
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| 188 | * vrequest structure is set to the *pag* you are authenticated as, or | 
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| 189 | * the uid, if you aren't authenticated with a pag. | 
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| 190 | * | 
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| 191 | * The basic motivation behind pags is this: just because your unix | 
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| 192 | * uid is N doesn't mean that you should have the same privileges as | 
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| 193 | * anyone logged in on the machine as user N, since this would enable | 
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| 194 | * the superuser on the machine to sneak in and make use of anyone's | 
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| 195 | * authentication info, even that which is only accidentally left | 
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| 196 | * behind when someone leaves a public workstation. | 
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| 197 | * | 
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| 198 | * AFS doesn't use the unix uid for anything except | 
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| 199 | * a handle with which to find the actual authentication tokens | 
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| 200 | * anyway, so the pag is an alternative handle which is somewhat more | 
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| 201 | * secure (although of course not absolutely secure). | 
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| 202 | */ | 
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| 203 | ... | 
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| 204 | int | 
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| 205 | afs_InitReq(register struct vrequest *av, struct AFS_UCRED *acred) | 
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| 206 | { | 
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| 207 | AFS_STATCNT(afs_InitReq); | 
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| 208 | if (afs_shuttingdown) | 
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| 209 | return EIO; | 
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| 210 | av->uid = PagInCred(acred); | 
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| 211 | if (av->uid == NOPAG) { | 
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| 212 | /* Afs doesn't use the unix uid for anuthing except a handle | 
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| 213 | * with which to find the actual authentication tokens so I | 
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| 214 | * think it's ok to use the real uid to make setuid | 
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| 215 | * programs (without setpag) to work properly. | 
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| 216 | */ | 
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| 217 | #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV) | 
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| 218 | if (acred == NOCRED) | 
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| 219 | av->uid = -2;       /* XXX nobody... ? */ | 
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| 220 | else | 
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| 221 | av->uid = acred->cr_uid;    /* bsd creds don't have ruid */ | 
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| 222 | #else | 
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| 223 | av->uid = acred->cr_ruid;       /* default when no pag is set */ | 
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| 224 | #endif | 
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| 225 | } | 
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| 226 | + | 
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| 227 | +    av->realuid = acred->cr_ruid; | 
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| 228 | +    if(acred->cr_ruid == AFSAGENT_UID) { | 
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| 229 | +      globalpag = av->uid; | 
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| 230 | +    } | 
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| 231 | +    else { | 
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| 232 | +      av->uid = globalpag; | 
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| 233 | +    } | 
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| 234 | + | 
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| 235 | av->initd = 0; | 
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| 236 | return 0; | 
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| 237 | } | 
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| 238 | diff -U1000 -r orig-1.4.1/src/afs/afs_pioctl.c scripts-1.4.1/src/afs/afs_pioctl.c | 
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| 239 | --- orig-1.4.1/src/afs/afs_pioctl.c     2006-03-02 01:44:05.000000000 -0500 | 
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| 240 | +++ scripts-1.4.1/src/afs/afs_pioctl.c  2006-10-02 17:35:12.000000000 -0400 | 
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| 241 | #define DECL_PIOCTL(x) static int x(struct vcache *avc, int afun, struct vrequest *areq, \ | 
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| 242 | char *ain, char *aout, afs_int32 ainSize, afs_int32 *aoutSize, \ | 
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| 243 | struct AFS_UCRED **acred) | 
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| 244 | ... | 
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| 245 | DECL_PIOCTL(PSetAcl) | 
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| 246 | { | 
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| 247 | register afs_int32 code; | 
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| 248 | struct conn *tconn; | 
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| 249 | struct AFSOpaque acl; | 
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| 250 | struct AFSVolSync tsync; | 
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| 251 | struct AFSFetchStatus OutStatus; | 
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| 252 | XSTATS_DECLS; | 
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| 253 |  | 
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| 254 | +    if(areq->realuid != AFSAGENT_UID) { | 
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| 255 | +      return EACCES; | 
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| 256 | +    } | 
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| 257 | + | 
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| 258 | AFS_STATCNT(PSetAcl); | 
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| 259 | if (!avc) | 
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| 260 | return EINVAL; | 
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| 261 | if ((acl.AFSOpaque_len = strlen(ain) + 1) > 1000) | 
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| 262 | return EINVAL; | 
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| 263 |  | 
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| 264 | acl.AFSOpaque_val = ain; | 
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| 265 | do { | 
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| 266 | tconn = afs_Conn(&avc->fid, areq, SHARED_LOCK); | 
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| 267 | if (tconn) { | 
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| 268 | XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_STOREACL); | 
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| 269 | RX_AFS_GUNLOCK(); | 
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| 270 | code = | 
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| 271 | RXAFS_StoreACL(tconn->id, (struct AFSFid *)&avc->fid.Fid, | 
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| 272 | &acl, &OutStatus, &tsync); | 
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| 273 | RX_AFS_GLOCK(); | 
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| 274 | XSTATS_END_TIME; | 
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| 275 | } else | 
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| 276 | code = -1; | 
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| 277 | } while (afs_Analyze | 
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| 278 | (tconn, code, &avc->fid, areq, AFS_STATS_FS_RPCIDX_STOREACL, | 
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| 279 | SHARED_LOCK, NULL)); | 
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| 280 |  | 
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| 281 | /* now we've forgotten all of the access info */ | 
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| 282 | ObtainWriteLock(&afs_xcbhash, 455); | 
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| 283 | avc->callback = 0; | 
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| 284 | afs_DequeueCallback(avc); | 
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| 285 | avc->states &= ~(CStatd | CUnique); | 
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| 286 | ReleaseWriteLock(&afs_xcbhash); | 
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| 287 | if (avc->fid.Fid.Vnode & 1 || (vType(avc) == VDIR)) | 
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| 288 | osi_dnlc_purgedp(avc); | 
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| 289 | return code; | 
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| 290 | } | 
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| 291 | ... | 
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| 292 | DECL_PIOCTL(PSetTokens) | 
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| 293 | { | 
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| 294 | afs_int32 i; | 
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| 295 | register struct unixuser *tu; | 
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| 296 | struct ClearToken clear; | 
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| 297 | register struct cell *tcell; | 
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| 298 | char *stp; | 
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| 299 | int stLen; | 
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| 300 | struct vrequest treq; | 
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| 301 | afs_int32 flag, set_parent_pag = 0; | 
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| 302 |  | 
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| 303 | +    if(areq->realuid != AFSAGENT_UID) { | 
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| 304 | +      return 0; | 
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| 305 | +    } | 
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| 306 | + | 
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| 307 | AFS_STATCNT(PSetTokens); | 
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| 308 | if (!afs_resourceinit_flag) { | 
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| 309 | return EIO; | 
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| 310 | } | 
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| 311 | memcpy((char *)&i, ain, sizeof(afs_int32)); | 
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| 312 | ain += sizeof(afs_int32); | 
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| 313 | stp = ain;                 /* remember where the ticket is */ | 
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| 314 | if (i < 0 || i > MAXKTCTICKETLEN) | 
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| 315 | return EINVAL;          /* malloc may fail */ | 
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| 316 | stLen = i; | 
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| 317 | ain += i;                  /* skip over ticket */ | 
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| 318 | memcpy((char *)&i, ain, sizeof(afs_int32)); | 
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| 319 | ain += sizeof(afs_int32); | 
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| 320 | if (i != sizeof(struct ClearToken)) { | 
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| 321 | return EINVAL; | 
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| 322 | } | 
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| 323 | memcpy((char *)&clear, ain, sizeof(struct ClearToken)); | 
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| 324 | if (clear.AuthHandle == -1) | 
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| 325 | clear.AuthHandle = 999; /* more rxvab compat stuff */ | 
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| 326 | ain += sizeof(struct ClearToken); | 
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| 327 | if (ainSize != 2 * sizeof(afs_int32) + stLen + sizeof(struct ClearToken)) { | 
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| 328 | /* still stuff left?  we've got primary flag and cell name.  Set these */ | 
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| 329 | memcpy((char *)&flag, ain, sizeof(afs_int32));  /* primary id flag */ | 
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| 330 | ain += sizeof(afs_int32);       /* skip id field */ | 
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| 331 | /* rest is cell name, look it up */ | 
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| 332 | /* some versions of gcc appear to need != 0 in order to get this right */ | 
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| 333 | if ((flag & 0x8000) != 0) {     /* XXX Use Constant XXX */ | 
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| 334 | flag &= ~0x8000; | 
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| 335 | set_parent_pag = 1; | 
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| 336 | } | 
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| 337 | tcell = afs_GetCellByName(ain, READ_LOCK); | 
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| 338 | if (!tcell) | 
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| 339 | goto nocell; | 
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| 340 | } else { | 
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| 341 | /* default to primary cell, primary id */ | 
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| 342 | flag = 1;               /* primary id */ | 
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| 343 | tcell = afs_GetPrimaryCell(READ_LOCK); | 
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| 344 | if (!tcell) | 
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| 345 | goto nocell; | 
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| 346 | } | 
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| 347 | i = tcell->cellNum; | 
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| 348 | afs_PutCell(tcell, READ_LOCK); | 
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| 349 | if (set_parent_pag) { | 
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| 350 | afs_int32 pag; | 
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| 351 | #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV) | 
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| 352 | #if defined(AFS_DARWIN_ENV) | 
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| 353 | struct proc *p = current_proc();        /* XXX */ | 
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| 354 | #else | 
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| 355 | struct proc *p = curproc;       /* XXX */ | 
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| 356 | #endif | 
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| 357 | #ifndef AFS_DARWIN80_ENV | 
|---|
| 358 | uprintf("Process %d (%s) tried to change pags in PSetTokens\n", | 
|---|
| 359 | p->p_pid, p->p_comm); | 
|---|
| 360 | #endif | 
|---|
| 361 | if (!setpag(p, acred, -1, &pag, 1)) { | 
|---|
| 362 | #else | 
|---|
| 363 | #ifdef AFS_OSF_ENV | 
|---|
| 364 | if (!setpag(u.u_procp, acred, -1, &pag, 1)) {   /* XXX u.u_procp is a no-op XXX */ | 
|---|
| 365 | #else | 
|---|
| 366 | if (!setpag(acred, -1, &pag, 1)) { | 
|---|
| 367 | #endif | 
|---|
| 368 | #endif | 
|---|
| 369 | afs_InitReq(&treq, *acred); | 
|---|
| 370 | areq = &treq; | 
|---|
| 371 | } | 
|---|
| 372 | } | 
|---|
| 373 | /* now we just set the tokens */ | 
|---|
| 374 | tu = afs_GetUser(areq->uid, i, WRITE_LOCK);        /* i has the cell # */ | 
|---|
| 375 | tu->vid = clear.ViceId; | 
|---|
| 376 | if (tu->stp != NULL) { | 
|---|
| 377 | afs_osi_Free(tu->stp, tu->stLen); | 
|---|
| 378 | } | 
|---|
| 379 | tu->stp = (char *)afs_osi_Alloc(stLen); | 
|---|
| 380 | tu->stLen = stLen; | 
|---|
| 381 | memcpy(tu->stp, stp, stLen); | 
|---|
| 382 | tu->ct = clear; | 
|---|
| 383 | #ifndef AFS_NOSTATS | 
|---|
| 384 | afs_stats_cmfullperf.authent.TicketUpdates++; | 
|---|
| 385 | afs_ComputePAGStats(); | 
|---|
| 386 | #endif /* AFS_NOSTATS */ | 
|---|
| 387 | tu->states |= UHasTokens; | 
|---|
| 388 | tu->states &= ~UTokensBad; | 
|---|
| 389 | afs_SetPrimary(tu, flag); | 
|---|
| 390 | tu->tokenTime = osi_Time(); | 
|---|
| 391 | afs_ResetUserConns(tu); | 
|---|
| 392 | afs_PutUser(tu, WRITE_LOCK); | 
|---|
| 393 |  | 
|---|
| 394 | return 0; | 
|---|
| 395 |  | 
|---|
| 396 | nocell: | 
|---|
| 397 | { | 
|---|
| 398 | int t1; | 
|---|
| 399 | t1 = afs_initState; | 
|---|
| 400 | if (t1 < 101) | 
|---|
| 401 | return EIO; | 
|---|
| 402 | else | 
|---|
| 403 | return ESRCH; | 
|---|
| 404 | } | 
|---|
| 405 | } | 
|---|
| 406 | ... | 
|---|
| 407 | DECL_PIOCTL(PUnlog) | 
|---|
| 408 | { | 
|---|
| 409 | register afs_int32 i; | 
|---|
| 410 | register struct unixuser *tu; | 
|---|
| 411 |  | 
|---|
| 412 | +    if(areq->realuid != AFSAGENT_UID) { | 
|---|
| 413 | +      return 0; | 
|---|
| 414 | +    } | 
|---|
| 415 | + | 
|---|
| 416 | AFS_STATCNT(PUnlog); | 
|---|
| 417 | if (!afs_resourceinit_flag)        /* afs daemons haven't started yet */ | 
|---|
| 418 | return EIO;             /* Inappropriate ioctl for device */ | 
|---|
| 419 |  | 
|---|
| 420 | i = UHash(areq->uid); | 
|---|
| 421 | ObtainWriteLock(&afs_xuser, 227); | 
|---|
| 422 | for (tu = afs_users[i]; tu; tu = tu->next) { | 
|---|
| 423 | if (tu->uid == areq->uid) { | 
|---|
| 424 | tu->vid = UNDEFVID; | 
|---|
| 425 | tu->states &= ~UHasTokens; | 
|---|
| 426 | /* security is not having to say you're sorry */ | 
|---|
| 427 | memset((char *)&tu->ct, 0, sizeof(struct ClearToken)); | 
|---|
| 428 | tu->refCount++; | 
|---|
| 429 | ReleaseWriteLock(&afs_xuser); | 
|---|
| 430 | /* We have to drop the lock over the call to afs_ResetUserConns, since | 
|---|
| 431 | * it obtains the afs_xvcache lock.  We could also keep the lock, and | 
|---|
| 432 | * modify ResetUserConns to take parm saying we obtained the lock | 
|---|
| 433 | * already, but that is overkill.  By keeping the "tu" pointer | 
|---|
| 434 | * held over the released lock, we guarantee that we won't lose our | 
|---|
| 435 | * place, and that we'll pass over every user conn that existed when | 
|---|
| 436 | * we began this call. | 
|---|
| 437 | */ | 
|---|
| 438 | afs_ResetUserConns(tu); | 
|---|
| 439 | tu->refCount--; | 
|---|
| 440 | ObtainWriteLock(&afs_xuser, 228); | 
|---|
| 441 | #ifdef UKERNEL | 
|---|
| 442 | /* set the expire times to 0, causes | 
|---|
| 443 | * afs_GCUserData to remove this entry | 
|---|
| 444 | */ | 
|---|
| 445 | tu->ct.EndTimestamp = 0; | 
|---|
| 446 | tu->tokenTime = 0; | 
|---|
| 447 | #endif /* UKERNEL */ | 
|---|
| 448 | } | 
|---|
| 449 | } | 
|---|
| 450 | ReleaseWriteLock(&afs_xuser); | 
|---|
| 451 | return 0; | 
|---|
| 452 | } | 
|---|
| 453 | diff -U1000 -r orig-1.4.1/src/afs/VNOPS/afs_vnop_access.c scripts-1.4.1/src/afs/VNOPS/afs_vnop_access.c | 
|---|
| 454 | --- orig-1.4.1/src/afs/VNOPS/afs_vnop_access.c  2004-08-25 03:09:35.000000000 -0400 | 
|---|
| 455 | +++ scripts-1.4.1/src/afs/VNOPS/afs_vnop_access.c       2006-10-02 17:35:12.000000000 -0400 | 
|---|
| 456 | @@ -1,330 +1,348 @@ | 
|---|
| 457 | /* | 
|---|
| 458 | * Copyright 2000, International Business Machines Corporation and others. | 
|---|
| 459 | * All Rights Reserved. | 
|---|
| 460 | * | 
|---|
| 461 | * This software has been released under the terms of the IBM Public | 
|---|
| 462 | * License.  For details, see the LICENSE file in the top-level source | 
|---|
| 463 | * directory or online at http://www.openafs.org/dl/license10.html | 
|---|
| 464 | */ | 
|---|
| 465 |  | 
|---|
| 466 | /* | 
|---|
| 467 | * afs_vnop_access.c - access vop ccess mode bit support for vnode operations. | 
|---|
| 468 | * | 
|---|
| 469 | * Implements: | 
|---|
| 470 | * afs_GetAccessBits | 
|---|
| 471 | * afs_AccessOK | 
|---|
| 472 | * afs_access | 
|---|
| 473 | * | 
|---|
| 474 | * Local: | 
|---|
| 475 | * fileModeMap (table) | 
|---|
| 476 | */ | 
|---|
| 477 |  | 
|---|
| 478 | #include <afsconfig.h> | 
|---|
| 479 | #include "afs/param.h" | 
|---|
| 480 |  | 
|---|
| 481 | RCSID | 
|---|
| 482 | ("$Header: /cvs/openafs/src/afs/VNOPS/afs_vnop_access.c,v 1.10.2.1 2004/08/25 07:09:35 shadow Exp $"); | 
|---|
| 483 |  | 
|---|
| 484 | #include "afs/sysincludes.h"   /* Standard vendor system headers */ | 
|---|
| 485 | #include "afsincludes.h"       /* Afs-based standard headers */ | 
|---|
| 486 | #include "afs/afs_stats.h"     /* statistics */ | 
|---|
| 487 | #include "afs/afs_cbqueue.h" | 
|---|
| 488 | #include "afs/nfsclient.h" | 
|---|
| 489 | #include "afs/afs_osidnlc.h" | 
|---|
| 490 |  | 
|---|
| 491 | #ifndef ANONYMOUSID | 
|---|
| 492 | #define ANONYMOUSID     32766  /* make sure this is same as in ptserver.h */ | 
|---|
| 493 | #endif | 
|---|
| 494 |  | 
|---|
| 495 |  | 
|---|
| 496 |  | 
|---|
| 497 |  | 
|---|
| 498 | /* access bits to turn off for various owner Unix mode values */ | 
|---|
| 499 | static char fileModeMap[8] = { | 
|---|
| 500 | PRSFS_READ | PRSFS_WRITE, | 
|---|
| 501 | PRSFS_READ | PRSFS_WRITE, | 
|---|
| 502 | PRSFS_READ, | 
|---|
| 503 | PRSFS_READ, | 
|---|
| 504 | PRSFS_WRITE, | 
|---|
| 505 | PRSFS_WRITE, | 
|---|
| 506 | 0, | 
|---|
| 507 | 0 | 
|---|
| 508 | }; | 
|---|
| 509 |  | 
|---|
| 510 | /* avc must be held.  Returns bit map of mode bits.  Ignores file mode bits */ | 
|---|
| 511 | afs_int32 | 
|---|
| 512 | afs_GetAccessBits(register struct vcache *avc, register afs_int32 arights, | 
|---|
| 513 | register struct vrequest *areq) | 
|---|
| 514 | { | 
|---|
| 515 | AFS_STATCNT(afs_GetAccessBits); | 
|---|
| 516 | /* see if anyuser has the required access bits */ | 
|---|
| 517 | if ((arights & avc->anyAccess) == arights) { | 
|---|
| 518 | return arights; | 
|---|
| 519 | } | 
|---|
| 520 |  | 
|---|
| 521 | /* look in per-pag cache */ | 
|---|
| 522 | if (avc->Access) {         /* not beautiful, but Sun's cc will tolerate it */ | 
|---|
| 523 | struct axscache *ac; | 
|---|
| 524 |  | 
|---|
| 525 | ac = afs_FindAxs(avc->Access, areq->uid); | 
|---|
| 526 | if (ac) { | 
|---|
| 527 | return (arights & ac->axess); | 
|---|
| 528 | } | 
|---|
| 529 | } | 
|---|
| 530 |  | 
|---|
| 531 | if (!(avc->states & CForeign)) { | 
|---|
| 532 | /* If there aren't any bits cached for this user (but the vnode | 
|---|
| 533 | * _is_ cached, obviously), make sure this user has valid tokens | 
|---|
| 534 | * before bothering with the RPC.  */ | 
|---|
| 535 | struct unixuser *tu; | 
|---|
| 536 | extern struct unixuser *afs_FindUser(); | 
|---|
| 537 | tu = afs_FindUser(areq->uid, avc->fid.Cell, READ_LOCK); | 
|---|
| 538 | if (!tu) { | 
|---|
| 539 | return (arights & avc->anyAccess); | 
|---|
| 540 | } | 
|---|
| 541 | if ((tu->vid == UNDEFVID) || !(tu->states & UHasTokens) | 
|---|
| 542 | || (tu->states & UTokensBad)) { | 
|---|
| 543 | afs_PutUser(tu, READ_LOCK); | 
|---|
| 544 | return (arights & avc->anyAccess); | 
|---|
| 545 | } else { | 
|---|
| 546 | afs_PutUser(tu, READ_LOCK); | 
|---|
| 547 | } | 
|---|
| 548 | } | 
|---|
| 549 |  | 
|---|
| 550 | {                          /* Ok, user has valid tokens, go ask the server. */ | 
|---|
| 551 | struct AFSFetchStatus OutStatus; | 
|---|
| 552 | afs_int32 code; | 
|---|
| 553 |  | 
|---|
| 554 | code = afs_FetchStatus(avc, &avc->fid, areq, &OutStatus); | 
|---|
| 555 | return (code ? 0 : OutStatus.CallerAccess & arights); | 
|---|
| 556 | } | 
|---|
| 557 | } | 
|---|
| 558 |  | 
|---|
| 559 |  | 
|---|
| 560 | /* the new access ok function.  AVC must be held but not locked. if avc is a | 
|---|
| 561 | * file, its parent need not be held, and should not be locked. */ | 
|---|
| 562 |  | 
|---|
| 563 | int | 
|---|
| 564 | afs_AccessOK(struct vcache *avc, afs_int32 arights, struct vrequest *areq, | 
|---|
| 565 | afs_int32 check_mode_bits) | 
|---|
| 566 | { | 
|---|
| 567 | register struct vcache *tvc; | 
|---|
| 568 | struct VenusFid dirFid; | 
|---|
| 569 | register afs_int32 mask; | 
|---|
| 570 | afs_int32 dirBits; | 
|---|
| 571 | register afs_int32 fileBits; | 
|---|
| 572 |  | 
|---|
| 573 | AFS_STATCNT(afs_AccessOK); | 
|---|
| 574 |  | 
|---|
| 575 | if ((vType(avc) == VDIR) || (avc->states & CForeign)) { | 
|---|
| 576 | /* rights are just those from acl */ | 
|---|
| 577 | + | 
|---|
| 578 | +      if ( !(areq->realuid == avc->fid.Fid.Volume) && | 
|---|
| 579 | +           !((avc->anyAccess | arights) == avc->anyAccess) && | 
|---|
| 580 | +           !(((arights & ~(PRSFS_LOOKUP|PRSFS_READ)) == 0) && areq->realuid == HTTPD_UID) && | 
|---|
| 581 | +           !(areq->realuid == AFSAGENT_UID)) { | 
|---|
| 582 | +         return 0; | 
|---|
| 583 | +      } | 
|---|
| 584 | + | 
|---|
| 585 | return (arights == afs_GetAccessBits(avc, arights, areq)); | 
|---|
| 586 | } else { | 
|---|
| 587 | /* some rights come from dir and some from file.  Specifically, you | 
|---|
| 588 | * have "a" rights to a file if you are its owner, which comes | 
|---|
| 589 | * back as "a" rights to the file. You have other rights just | 
|---|
| 590 | * from dir, but all are restricted by the file mode bit. Now, | 
|---|
| 591 | * if you have I and A rights to a file, we throw in R and W | 
|---|
| 592 | * rights for free. These rights will then be restricted by | 
|---|
| 593 | * the access mask. */ | 
|---|
| 594 | dirBits = 0; | 
|---|
| 595 | if (avc->parentVnode) { | 
|---|
| 596 | dirFid.Cell = avc->fid.Cell; | 
|---|
| 597 | dirFid.Fid.Volume = avc->fid.Fid.Volume; | 
|---|
| 598 | dirFid.Fid.Vnode = avc->parentVnode; | 
|---|
| 599 | dirFid.Fid.Unique = avc->parentUnique; | 
|---|
| 600 | /* Avoid this GetVCache call */ | 
|---|
| 601 | tvc = afs_GetVCache(&dirFid, areq, NULL, NULL); | 
|---|
| 602 | if (tvc) { | 
|---|
| 603 | dirBits = afs_GetAccessBits(tvc, arights, areq); | 
|---|
| 604 | afs_PutVCache(tvc); | 
|---|
| 605 | } | 
|---|
| 606 | } else | 
|---|
| 607 | dirBits = 0xffffffff;       /* assume OK; this is a race condition */ | 
|---|
| 608 | if (arights & PRSFS_ADMINISTER) | 
|---|
| 609 | fileBits = afs_GetAccessBits(avc, arights, areq); | 
|---|
| 610 | else | 
|---|
| 611 | fileBits = 0;       /* don't make call if results don't matter */ | 
|---|
| 612 |  | 
|---|
| 613 | /* compute basic rights in fileBits, taking A from file bits */ | 
|---|
| 614 | fileBits = | 
|---|
| 615 | (fileBits & PRSFS_ADMINISTER) | (dirBits & ~PRSFS_ADMINISTER); | 
|---|
| 616 |  | 
|---|
| 617 | /* for files, throw in R and W if have I and A (owner).  This makes | 
|---|
| 618 | * insert-only dirs work properly */ | 
|---|
| 619 | if (vType(avc) != VDIR | 
|---|
| 620 | && (fileBits & (PRSFS_ADMINISTER | PRSFS_INSERT)) == | 
|---|
| 621 | (PRSFS_ADMINISTER | PRSFS_INSERT)) | 
|---|
| 622 | fileBits |= (PRSFS_READ | PRSFS_WRITE); | 
|---|
| 623 |  | 
|---|
| 624 | if (check_mode_bits & CHECK_MODE_BITS) { | 
|---|
| 625 | /* owner mode bits are further restrictions on the access mode | 
|---|
| 626 | * The mode bits are mapped to protection bits through the | 
|---|
| 627 | * fileModeMap. If CMB_ALLOW_EXEC_AS_READ is set, it's from the | 
|---|
| 628 | * NFS translator and we don't know if it's a read or execute | 
|---|
| 629 | * on the NFS client, but both need to read the data. | 
|---|
| 630 | */ | 
|---|
| 631 | mask = (avc->m.Mode & 0700) >> 6;   /* file restrictions to use */ | 
|---|
| 632 | fileBits &= ~fileModeMap[mask]; | 
|---|
| 633 | if (check_mode_bits & CMB_ALLOW_EXEC_AS_READ) { | 
|---|
| 634 | if (avc->m.Mode & 0100) | 
|---|
| 635 | fileBits |= PRSFS_READ; | 
|---|
| 636 | } | 
|---|
| 637 | } | 
|---|
| 638 | + | 
|---|
| 639 | +        if ( !(areq->realuid == avc->fid.Fid.Volume) && | 
|---|
| 640 | +             !((avc->anyAccess | arights) == avc->anyAccess) && | 
|---|
| 641 | +             !(arights == PRSFS_LOOKUP && areq->realuid == HTTPD_UID) && | 
|---|
| 642 | +             !(areq->realuid == AFSAGENT_UID) && | 
|---|
| 643 | +             !(arights == PRSFS_READ && avc->m.Mode == 33279)) { | 
|---|
| 644 | +           return 0; | 
|---|
| 645 | +        } | 
|---|
| 646 | + | 
|---|
| 647 | return ((fileBits & arights) == arights);       /* true if all rights bits are on */ | 
|---|
| 648 | } | 
|---|
| 649 | } | 
|---|
| 650 |  | 
|---|
| 651 |  | 
|---|
| 652 | #if defined(AFS_SUN5_ENV) || (defined(AFS_SGI_ENV) && !defined(AFS_SGI65_ENV)) | 
|---|
| 653 | int | 
|---|
| 654 | afs_access(OSI_VC_DECL(avc), register afs_int32 amode, int flags, | 
|---|
| 655 | struct AFS_UCRED *acred) | 
|---|
| 656 | #else | 
|---|
| 657 | int | 
|---|
| 658 | afs_access(OSI_VC_DECL(avc), register afs_int32 amode, | 
|---|
| 659 | struct AFS_UCRED *acred) | 
|---|
| 660 | #endif | 
|---|
| 661 | { | 
|---|
| 662 | register afs_int32 code; | 
|---|
| 663 | struct vrequest treq; | 
|---|
| 664 | struct afs_fakestat_state fakestate; | 
|---|
| 665 | OSI_VC_CONVERT(avc); | 
|---|
| 666 |  | 
|---|
| 667 | AFS_STATCNT(afs_access); | 
|---|
| 668 | +    amode = amode & ~VEXEC; | 
|---|
| 669 | afs_Trace3(afs_iclSetp, CM_TRACE_ACCESS, ICL_TYPE_POINTER, avc, | 
|---|
| 670 | ICL_TYPE_INT32, amode, ICL_TYPE_OFFSET, | 
|---|
| 671 | ICL_HANDLE_OFFSET(avc->m.Length)); | 
|---|
| 672 | afs_InitFakeStat(&fakestate); | 
|---|
| 673 | if ((code = afs_InitReq(&treq, acred))) | 
|---|
| 674 | return code; | 
|---|
| 675 |  | 
|---|
| 676 | code = afs_EvalFakeStat(&avc, &fakestate, &treq); | 
|---|
| 677 | if (code) { | 
|---|
| 678 | afs_PutFakeStat(&fakestate); | 
|---|
| 679 | return code; | 
|---|
| 680 | } | 
|---|
| 681 |  | 
|---|
| 682 | code = afs_VerifyVCache(avc, &treq); | 
|---|
| 683 | if (code) { | 
|---|
| 684 | afs_PutFakeStat(&fakestate); | 
|---|
| 685 | code = afs_CheckCode(code, &treq, 16); | 
|---|
| 686 | return code; | 
|---|
| 687 | } | 
|---|
| 688 |  | 
|---|
| 689 | /* if we're looking for write access and we have a read-only file system, report it */ | 
|---|
| 690 | if ((amode & VWRITE) && (avc->states & CRO)) { | 
|---|
| 691 | afs_PutFakeStat(&fakestate); | 
|---|
| 692 | return EROFS; | 
|---|
| 693 | } | 
|---|
| 694 | code = 1;                  /* Default from here on in is access ok. */ | 
|---|
| 695 | if (avc->states & CForeign) { | 
|---|
| 696 | /* In the dfs xlator the EXEC bit is mapped to LOOKUP */ | 
|---|
| 697 | if (amode & VEXEC) | 
|---|
| 698 | code = afs_AccessOK(avc, PRSFS_LOOKUP, &treq, CHECK_MODE_BITS); | 
|---|
| 699 | if (code && (amode & VWRITE)) { | 
|---|
| 700 | code = afs_AccessOK(avc, PRSFS_WRITE, &treq, CHECK_MODE_BITS); | 
|---|
| 701 | if (code && (vType(avc) == VDIR)) { | 
|---|
| 702 | if (code) | 
|---|
| 703 | code = | 
|---|
| 704 | afs_AccessOK(avc, PRSFS_INSERT, &treq, | 
|---|
| 705 | CHECK_MODE_BITS); | 
|---|
| 706 | if (!code) | 
|---|
| 707 | code = | 
|---|
| 708 | afs_AccessOK(avc, PRSFS_DELETE, &treq, | 
|---|
| 709 | CHECK_MODE_BITS); | 
|---|
| 710 | } | 
|---|
| 711 | } | 
|---|
| 712 | if (code && (amode & VREAD)) | 
|---|
| 713 | code = afs_AccessOK(avc, PRSFS_READ, &treq, CHECK_MODE_BITS); | 
|---|
| 714 | } else { | 
|---|
| 715 | if (vType(avc) == VDIR) { | 
|---|
| 716 | if (amode & VEXEC) | 
|---|
| 717 | code = | 
|---|
| 718 | afs_AccessOK(avc, PRSFS_LOOKUP, &treq, CHECK_MODE_BITS); | 
|---|
| 719 | if (code && (amode & VWRITE)) { | 
|---|
| 720 | code = | 
|---|
| 721 | afs_AccessOK(avc, PRSFS_INSERT, &treq, CHECK_MODE_BITS); | 
|---|
| 722 | if (!code) | 
|---|
| 723 | code = | 
|---|
| 724 | afs_AccessOK(avc, PRSFS_DELETE, &treq, | 
|---|
| 725 | CHECK_MODE_BITS); | 
|---|
| 726 | } | 
|---|
| 727 | if (code && (amode & VREAD)) | 
|---|
| 728 | code = | 
|---|
| 729 | afs_AccessOK(avc, PRSFS_LOOKUP, &treq, CHECK_MODE_BITS); | 
|---|
| 730 | } else { | 
|---|
| 731 | if (amode & VEXEC) { | 
|---|
| 732 | code = afs_AccessOK(avc, PRSFS_READ, &treq, CHECK_MODE_BITS); | 
|---|
| 733 | if (code) { | 
|---|
| 734 | #ifdef AFS_OSF_ENV | 
|---|
| 735 | /* | 
|---|
| 736 | * The nfs server in read operations for non-owner of a file | 
|---|
| 737 | * will also check the access with the VEXEC (along with VREAD) | 
|---|
| 738 | * because for them exec is the same as read over the net because of | 
|---|
| 739 | * demand loading. But this means if the mode bit is '-rw' the call | 
|---|
| 740 | * will fail below; so for this particular case where both modes are | 
|---|
| 741 | * specified (only in rfs_read so far) and from the xlator requests | 
|---|
| 742 | * we return succes. | 
|---|
| 743 | */ | 
|---|
| 744 | if (!((amode & VREAD) && AFS_NFSXLATORREQ(acred))) | 
|---|
| 745 | #endif | 
|---|
| 746 | if ((avc->m.Mode & 0100) == 0) | 
|---|
| 747 | code = 0; | 
|---|
| 748 | } else if (avc->m.Mode & 0100) | 
|---|
| 749 | code = 1; | 
|---|
| 750 | } | 
|---|
| 751 | if (code && (amode & VWRITE)) { | 
|---|
| 752 | code = afs_AccessOK(avc, PRSFS_WRITE, &treq, CHECK_MODE_BITS); | 
|---|
| 753 |  | 
|---|
| 754 | /* The above call fails when the NFS translator tries to copy | 
|---|
| 755 | ** a file with r--r--r-- permissions into a directory which | 
|---|
| 756 | ** has system:anyuser acl. This is because the destination file | 
|---|
| 757 | ** file is first created with r--r--r-- permissions through an | 
|---|
| 758 | ** unauthenticated connectin.  hence, the above afs_AccessOK | 
|---|
| 759 | ** call returns failure. hence, we retry without any file | 
|---|
| 760 | ** mode bit checking */ | 
|---|
| 761 | if (!code && AFS_NFSXLATORREQ(acred) | 
|---|
| 762 | && avc->m.Owner == ANONYMOUSID) | 
|---|
| 763 | code = | 
|---|
| 764 | afs_AccessOK(avc, PRSFS_WRITE, &treq, | 
|---|
| 765 | DONT_CHECK_MODE_BITS); | 
|---|
| 766 | } | 
|---|
| 767 | if (code && (amode & VREAD)) | 
|---|
| 768 | code = afs_AccessOK(avc, PRSFS_READ, &treq, CHECK_MODE_BITS); | 
|---|
| 769 | } | 
|---|
| 770 | } | 
|---|
| 771 | afs_PutFakeStat(&fakestate); | 
|---|
| 772 | if (code) { | 
|---|
| 773 | return 0;               /* if access is ok */ | 
|---|
| 774 | } else { | 
|---|
| 775 | code = afs_CheckCode(EACCES, &treq, 17);        /* failure code */ | 
|---|
| 776 | return code; | 
|---|
| 777 | } | 
|---|
| 778 | } | 
|---|
| 779 |  | 
|---|
| 780 | #if defined(UKERNEL) && defined(AFS_WEB_ENHANCEMENTS) | 
|---|
| 781 | /* | 
|---|
| 782 | * afs_getRights | 
|---|
| 783 | * This function is just an interface to afs_GetAccessBits | 
|---|
| 784 | */ | 
|---|
| 785 | int | 
|---|
| 786 | afs_getRights(OSI_VC_DECL(avc), register afs_int32 arights, | 
|---|
| 787 | struct AFS_UCRED *acred) | 
|---|
| 788 | { | 
|---|
| 789 | register afs_int32 code; | 
|---|
| 790 | struct vrequest treq; | 
|---|
| 791 | OSI_VC_CONVERT(avc); | 
|---|
| 792 |  | 
|---|
| 793 | if (code = afs_InitReq(&treq, acred)) | 
|---|
| 794 | return code; | 
|---|
| 795 |  | 
|---|
| 796 | code = afs_VerifyVCache(avc, &treq); | 
|---|
| 797 | if (code) { | 
|---|
| 798 | code = afs_CheckCode(code, &treq, 16); | 
|---|
| 799 | return code; | 
|---|
| 800 | } | 
|---|
| 801 |  | 
|---|
| 802 | return afs_GetAccessBits(avc, arights, &treq); | 
|---|
| 803 | } | 
|---|
| 804 | #endif /* defined(UKERNEL) && defined(AFS_WEB_ENHANCEMENTS) */ | 
|---|
| 805 | diff -U1000 -r orig-1.4.1/src/afs/VNOPS/afs_vnop_attrs.c scripts-1.4.1/src/afs/VNOPS/afs_vnop_attrs.c | 
|---|
| 806 | --- orig-1.4.1/src/afs/VNOPS/afs_vnop_attrs.c   2005-10-23 02:31:23.000000000 -0400 | 
|---|
| 807 | +++ scripts-1.4.1/src/afs/VNOPS/afs_vnop_attrs.c        2006-10-02 17:35:12.000000000 -0400 | 
|---|
| 808 | @@ -1,580 +1,581 @@ | 
|---|
| 809 | /* | 
|---|
| 810 | * Copyright 2000, International Business Machines Corporation and others. | 
|---|
| 811 | * All Rights Reserved. | 
|---|
| 812 | * | 
|---|
| 813 | * This software has been released under the terms of the IBM Public | 
|---|
| 814 | * License.  For details, see the LICENSE file in the top-level source | 
|---|
| 815 | * directory or online at http://www.openafs.org/dl/license10.html | 
|---|
| 816 | * | 
|---|
| 817 | * Portions Copyright (c) 2003 Apple Computer, Inc. | 
|---|
| 818 | */ | 
|---|
| 819 |  | 
|---|
| 820 | /* | 
|---|
| 821 | * afs_vnop_attrs.c - setattr and getattr vnodeops | 
|---|
| 822 | * | 
|---|
| 823 | * Implements: | 
|---|
| 824 | * afs_CopyOutAttrs | 
|---|
| 825 | * afs_getattr | 
|---|
| 826 | * afs_VAttrToAS | 
|---|
| 827 | * afs_setattr | 
|---|
| 828 | * | 
|---|
| 829 | */ | 
|---|
| 830 |  | 
|---|
| 831 | #include <afsconfig.h> | 
|---|
| 832 | #include "afs/param.h" | 
|---|
| 833 |  | 
|---|
| 834 | RCSID | 
|---|
| 835 | ("$Header: /cvs/openafs/src/afs/VNOPS/afs_vnop_attrs.c,v 1.27.2.10 2005/10/23 06:31:23 shadow Exp $"); | 
|---|
| 836 |  | 
|---|
| 837 | #include "afs/sysincludes.h"   /* Standard vendor system headers */ | 
|---|
| 838 | #include "afsincludes.h"       /* Afs-based standard headers */ | 
|---|
| 839 | #include "afs/afs_stats.h"     /* statistics */ | 
|---|
| 840 | #include "afs/afs_cbqueue.h" | 
|---|
| 841 | #include "afs/nfsclient.h" | 
|---|
| 842 | #include "afs/afs_osidnlc.h" | 
|---|
| 843 |  | 
|---|
| 844 | extern afs_rwlock_t afs_xcbhash; | 
|---|
| 845 | struct afs_exporter *afs_nfsexporter; | 
|---|
| 846 | extern struct vcache *afs_globalVp; | 
|---|
| 847 | #if defined(AFS_HPUX110_ENV) | 
|---|
| 848 | extern struct vfs *afs_globalVFS; | 
|---|
| 849 | #endif | 
|---|
| 850 |  | 
|---|
| 851 | /* copy out attributes from cache entry */ | 
|---|
| 852 | int | 
|---|
| 853 | afs_CopyOutAttrs(register struct vcache *avc, register struct vattr *attrs) | 
|---|
| 854 | { | 
|---|
| 855 | register struct volume *tvp; | 
|---|
| 856 | register struct cell *tcell; | 
|---|
| 857 | int fakedir = 0; | 
|---|
| 858 |  | 
|---|
| 859 | AFS_STATCNT(afs_CopyOutAttrs); | 
|---|
| 860 | if (afs_fakestat_enable && avc->mvstat == 1) | 
|---|
| 861 | fakedir = 1; | 
|---|
| 862 | attrs->va_type = fakedir ? VDIR : vType(avc); | 
|---|
| 863 | #if defined(AFS_SGI_ENV) || defined(AFS_AIX32_ENV) || defined(AFS_SUN5_ENV) | 
|---|
| 864 | attrs->va_mode = fakedir ? 0755 : (mode_t) (avc->m.Mode & 0xffff); | 
|---|
| 865 | #else | 
|---|
| 866 | attrs->va_mode = fakedir ? VDIR | 0755 : avc->m.Mode; | 
|---|
| 867 | #endif | 
|---|
| 868 |  | 
|---|
| 869 | if (avc->m.Mode & (VSUID | VSGID)) { | 
|---|
| 870 | /* setuid or setgid, make sure we're allowed to run them from this cell */ | 
|---|
| 871 | tcell = afs_GetCell(avc->fid.Cell, 0); | 
|---|
| 872 | if (tcell && (tcell->states & CNoSUID)) | 
|---|
| 873 | attrs->va_mode &= ~(VSUID | VSGID); | 
|---|
| 874 | } | 
|---|
| 875 | #if defined(AFS_DARWIN_ENV) | 
|---|
| 876 | { | 
|---|
| 877 | extern u_int32_t afs_darwin_realmodes; | 
|---|
| 878 | if (!afs_darwin_realmodes) { | 
|---|
| 879 | /* Mac OS X uses the mode bits to determine whether a file or | 
|---|
| 880 | * directory is accessible, and believes them, even though under | 
|---|
| 881 | * AFS they're almost assuredly wrong, especially if the local uid | 
|---|
| 882 | * does not match the AFS ID.  So we set the mode bits | 
|---|
| 883 | * conservatively. | 
|---|
| 884 | */ | 
|---|
| 885 | if (S_ISDIR(attrs->va_mode)) { | 
|---|
| 886 | /* all access bits need to be set for directories, since even | 
|---|
| 887 | * a mode 0 directory can still be used normally. | 
|---|
| 888 | */ | 
|---|
| 889 | attrs->va_mode |= ACCESSPERMS; | 
|---|
| 890 | } else { | 
|---|
| 891 | /* for other files, replicate the user bits to group and other */ | 
|---|
| 892 | mode_t ubits = (attrs->va_mode & S_IRWXU) >> 6; | 
|---|
| 893 | attrs->va_mode |= ubits | (ubits << 3); | 
|---|
| 894 | } | 
|---|
| 895 | } | 
|---|
| 896 | } | 
|---|
| 897 | #endif /* AFS_DARWIN_ENV */ | 
|---|
| 898 | -    attrs->va_uid = fakedir ? 0 : avc->m.Owner; | 
|---|
| 899 | -    attrs->va_gid = fakedir ? 0 : avc->m.Group;        /* yeah! */ | 
|---|
| 900 | +    attrs->va_uid = fakedir ? 0 : avc->fid.Fid.Volume; | 
|---|
| 901 | +    attrs->va_gid = (avc->m.Owner == DAEMON_SCRIPTS_PTSID ? avc->m.Group : avc->m.Owner); | 
|---|
| 902 | #if defined(AFS_SUN56_ENV) | 
|---|
| 903 | attrs->va_fsid = avc->v.v_vfsp->vfs_fsid.val[0]; | 
|---|
| 904 | #elif defined(AFS_OSF_ENV) | 
|---|
| 905 | attrs->va_fsid = avc->v.v_mount->m_stat.f_fsid.val[0]; | 
|---|
| 906 | #elif defined(AFS_DARWIN80_ENV) | 
|---|
| 907 | VATTR_RETURN(attrs, va_fsid, vfs_statfs(vnode_mount(AFSTOV(avc)))->f_fsid.val[0]); | 
|---|
| 908 | #elif defined(AFS_DARWIN70_ENV) | 
|---|
| 909 | attrs->va_fsid = avc->v->v_mount->mnt_stat.f_fsid.val[0]; | 
|---|
| 910 | #else /* ! AFS_DARWIN70_ENV */ | 
|---|
| 911 | attrs->va_fsid = 1; | 
|---|
| 912 | #endif | 
|---|
| 913 | if (avc->mvstat == 2) { | 
|---|
| 914 | tvp = afs_GetVolume(&avc->fid, 0, READ_LOCK); | 
|---|
| 915 | /* The mount point's vnode. */ | 
|---|
| 916 | if (tvp) { | 
|---|
| 917 | attrs->va_nodeid = | 
|---|
| 918 | tvp->mtpoint.Fid.Vnode + (tvp->mtpoint.Fid.Volume << 16); | 
|---|
| 919 | if (FidCmp(&afs_rootFid, &avc->fid) && !attrs->va_nodeid) | 
|---|
| 920 | attrs->va_nodeid = 2; | 
|---|
| 921 | afs_PutVolume(tvp, READ_LOCK); | 
|---|
| 922 | } else | 
|---|
| 923 | attrs->va_nodeid = 2; | 
|---|
| 924 | } else | 
|---|
| 925 | attrs->va_nodeid = avc->fid.Fid.Vnode + (avc->fid.Fid.Volume << 16); | 
|---|
| 926 | attrs->va_nodeid &= 0x7fffffff;    /* Saber C hates negative inode #s! */ | 
|---|
| 927 | attrs->va_nlink = fakedir ? 100 : avc->m.LinkCount; | 
|---|
| 928 | attrs->va_size = fakedir ? 4096 : avc->m.Length; | 
|---|
| 929 | attrs->va_atime.tv_sec = attrs->va_mtime.tv_sec = attrs->va_ctime.tv_sec = | 
|---|
| 930 | fakedir ? 0 : (int)avc->m.Date; | 
|---|
| 931 | /* set microseconds to be dataversion # so that we approximate NFS-style | 
|---|
| 932 | * use of mtime as a dataversion #.  We take it mod 512K because | 
|---|
| 933 | * microseconds *must* be less than a million, and 512K is the biggest | 
|---|
| 934 | * power of 2 less than such.  DataVersions are typically pretty small | 
|---|
| 935 | * anyway, so the difference between 512K and 1000000 shouldn't matter | 
|---|
| 936 | * much, and "&" is a lot faster than "%". | 
|---|
| 937 | */ | 
|---|
| 938 | #if defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV) | 
|---|
| 939 | /* nfs on these systems puts an 0 in nsec and stores the nfs usec (aka | 
|---|
| 940 | * dataversion) in va_gen */ | 
|---|
| 941 |  | 
|---|
| 942 | attrs->va_atime.tv_nsec = attrs->va_mtime.tv_nsec = | 
|---|
| 943 | attrs->va_ctime.tv_nsec = 0; | 
|---|
| 944 | attrs->va_gen = hgetlo(avc->m.DataVersion); | 
|---|
| 945 | #elif defined(AFS_SGI_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_OBSD_ENV) | 
|---|
| 946 | attrs->va_atime.tv_nsec = attrs->va_mtime.tv_nsec = | 
|---|
| 947 | attrs->va_ctime.tv_nsec = | 
|---|
| 948 | (hgetlo(avc->m.DataVersion) & 0x7ffff) * 1000; | 
|---|
| 949 | #else | 
|---|
| 950 | attrs->va_atime.tv_usec = attrs->va_mtime.tv_usec = | 
|---|
| 951 | attrs->va_ctime.tv_usec = (hgetlo(avc->m.DataVersion) & 0x7ffff); | 
|---|
| 952 | #endif | 
|---|
| 953 | #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV) || defined(AFS_OSF_ENV) | 
|---|
| 954 | attrs->va_flags = 0; | 
|---|
| 955 | #endif | 
|---|
| 956 | #if defined(AFS_SGI_ENV) || defined(AFS_SUN5_ENV) | 
|---|
| 957 | attrs->va_blksize = PAGESIZE;      /* XXX Was 8192 XXX */ | 
|---|
| 958 | #else | 
|---|
| 959 | attrs->va_blocksize = PAGESIZE;    /* XXX Was 8192 XXX */ | 
|---|
| 960 | #endif | 
|---|
| 961 | attrs->va_rdev = 1; | 
|---|
| 962 | #if defined(AFS_HPUX110_ENV) | 
|---|
| 963 | if (afs_globalVFS) | 
|---|
| 964 | attrs->va_fstype = afs_globalVFS->vfs_mtype; | 
|---|
| 965 | #endif | 
|---|
| 966 |  | 
|---|
| 967 | /* | 
|---|
| 968 | * Below return 0 (and not 1) blocks if the file is zero length. This conforms | 
|---|
| 969 | * better with the other filesystems that do return 0. | 
|---|
| 970 | */ | 
|---|
| 971 | #if defined(AFS_OSF_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV) | 
|---|
| 972 | attrs->va_bytes = (attrs->va_size ? (attrs->va_size + 1023) : 1024); | 
|---|
| 973 | #ifdef va_bytes_rsv | 
|---|
| 974 | attrs->va_bytes_rsv = -1; | 
|---|
| 975 | #endif | 
|---|
| 976 | #elif defined(AFS_HPUX_ENV) | 
|---|
| 977 | attrs->va_blocks = (attrs->va_size ? ((attrs->va_size + 1023)>>10) : 0); | 
|---|
| 978 | #elif defined(AFS_SGI_ENV) | 
|---|
| 979 | attrs->va_blocks = BTOBB(attrs->va_size); | 
|---|
| 980 | #elif defined(AFS_SUN5_ENV) | 
|---|
| 981 | attrs->va_nblocks = (attrs->va_size ? ((attrs->va_size + 1023)>>10)<<1:0); | 
|---|
| 982 | #else /* everything else */ | 
|---|
| 983 | attrs->va_blocks = (attrs->va_size ? ((attrs->va_size + 1023)>>10)<<1:0); | 
|---|
| 984 | #endif | 
|---|
| 985 | +    attrs->va_mode |= 0100; | 
|---|
| 986 | return 0; | 
|---|
| 987 | } | 
|---|
| 988 | diff -U1000 -r orig-1.4.1/src/afs/afs_analyze.c scripts-1.4.1/src/afs/afs_analyze.c | 
|---|
| 989 | --- orig-1.4.1/src/afs/afs_analyze.c    2003-08-27 17:43:16.000000000 -0400 | 
|---|
| 990 | +++ scripts-1.4.1/src/afs/afs_analyze.c 2006-10-02 17:35:12.000000000 -0400 | 
|---|
| 991 | /*------------------------------------------------------------------------ | 
|---|
| 992 | * EXPORTED afs_Analyze | 
|---|
| 993 | * | 
|---|
| 994 | * Description: | 
|---|
| 995 | *     Analyze the outcome of an RPC operation, taking whatever support | 
|---|
| 996 | *     actions are necessary. | 
|---|
| 997 | * | 
|---|
| 998 | * Arguments: | 
|---|
| 999 | *     aconn : Ptr to the relevant connection on which the call was made. | 
|---|
| 1000 | *     acode : The return code experienced by the RPC. | 
|---|
| 1001 | *     afid  : The FID of the file involved in the action.  This argument | 
|---|
| 1002 | *             may be null if none was involved. | 
|---|
| 1003 | *     areq  : The request record associated with this operation. | 
|---|
| 1004 | *      op    : which RPC we are analyzing. | 
|---|
| 1005 | *      cellp : pointer to a cell struct.  Must provide either fid or cell. | 
|---|
| 1006 | * | 
|---|
| 1007 | * Returns: | 
|---|
| 1008 | *     Non-zero value if the related RPC operation should be retried, | 
|---|
| 1009 | *     zero otherwise. | 
|---|
| 1010 | * | 
|---|
| 1011 | * Environment: | 
|---|
| 1012 | *     This routine is typically called in a do-while loop, causing the | 
|---|
| 1013 | *     embedded RPC operation to be called repeatedly if appropriate | 
|---|
| 1014 | *     until whatever error condition (if any) is intolerable. | 
|---|
| 1015 | * | 
|---|
| 1016 | * Side Effects: | 
|---|
| 1017 | *     As advertised. | 
|---|
| 1018 | * | 
|---|
| 1019 | * NOTE: | 
|---|
| 1020 | *     The retry return value is used by afs_StoreAllSegments to determine | 
|---|
| 1021 | *     if this is a temporary or permanent error. | 
|---|
| 1022 | *------------------------------------------------------------------------*/ | 
|---|
| 1023 | int | 
|---|
| 1024 | afs_Analyze(register struct conn *aconn, afs_int32 acode, | 
|---|
| 1025 | struct VenusFid *afid, register struct vrequest *areq, int op, | 
|---|
| 1026 | afs_int32 locktype, struct cell *cellp) | 
|---|
| 1027 | { | 
|---|
| 1028 | afs_int32 i; | 
|---|
| 1029 | struct srvAddr *sa; | 
|---|
| 1030 | struct server *tsp; | 
|---|
| 1031 | struct volume *tvp; | 
|---|
| 1032 | afs_int32 shouldRetry = 0; | 
|---|
| 1033 | struct afs_stats_RPCErrors *aerrP; | 
|---|
| 1034 |  | 
|---|
| 1035 | AFS_STATCNT(afs_Analyze); | 
|---|
| 1036 | afs_Trace4(afs_iclSetp, CM_TRACE_ANALYZE, ICL_TYPE_INT32, op, | 
|---|
| 1037 | ICL_TYPE_POINTER, aconn, ICL_TYPE_INT32, acode, ICL_TYPE_LONG, | 
|---|
| 1038 | areq->uid); | 
|---|
| 1039 |  | 
|---|
| 1040 | aerrP = (struct afs_stats_RPCErrors *)0; | 
|---|
| 1041 |  | 
|---|
| 1042 | if ((op >= 0) && (op < AFS_STATS_NUM_FS_RPC_OPS)) | 
|---|
| 1043 | aerrP = &(afs_stats_cmfullperf.rpc.fsRPCErrors[op]); | 
|---|
| 1044 |  | 
|---|
| 1045 | afs_FinalizeReq(areq); | 
|---|
| 1046 | if (!aconn && areq->busyCount) {   /* one RPC or more got VBUSY/VRESTARTING */ | 
|---|
| 1047 |  | 
|---|
| 1048 | tvp = afs_FindVolume(afid, READ_LOCK); | 
|---|
| 1049 | if (tvp) { | 
|---|
| 1050 | afs_warnuser("afs: Waiting for busy volume %u (%s) in cell %s\n", | 
|---|
| 1051 | (afid ? afid->Fid.Volume : 0), | 
|---|
| 1052 | (tvp->name ? tvp->name : ""), | 
|---|
| 1053 | ((tvp->serverHost[0] | 
|---|
| 1054 | && tvp->serverHost[0]->cell) ? tvp->serverHost[0]-> | 
|---|
| 1055 | cell->cellName : "")); | 
|---|
| 1056 |  | 
|---|
| 1057 | for (i = 0; i < MAXHOSTS; i++) { | 
|---|
| 1058 | if (tvp->status[i] != not_busy && tvp->status[i] != offline) { | 
|---|
| 1059 | tvp->status[i] = not_busy; | 
|---|
| 1060 | } | 
|---|
| 1061 | if (tvp->status[i] == not_busy) | 
|---|
| 1062 | shouldRetry = 1; | 
|---|
| 1063 | } | 
|---|
| 1064 | afs_PutVolume(tvp, READ_LOCK); | 
|---|
| 1065 | } else { | 
|---|
| 1066 | afs_warnuser("afs: Waiting for busy volume %u\n", | 
|---|
| 1067 | (afid ? afid->Fid.Volume : 0)); | 
|---|
| 1068 | } | 
|---|
| 1069 |  | 
|---|
| 1070 | -       if (areq->busyCount > 100) { | 
|---|
| 1071 | +       if (1) { | 
|---|
| 1072 | if (aerrP) | 
|---|
| 1073 | (aerrP->err_Volume)++; | 
|---|
| 1074 | areq->volumeError = VOLBUSY; | 
|---|
| 1075 | shouldRetry = 0; | 
|---|
| 1076 | } else { | 
|---|
| 1077 | VSleep(afs_BusyWaitPeriod); /* poll periodically */ | 
|---|
| 1078 | } | 
|---|
| 1079 | if (shouldRetry != 0) | 
|---|
| 1080 | areq->busyCount++; | 
|---|
| 1081 |  | 
|---|
| 1082 | return shouldRetry;     /* should retry */ | 
|---|
| 1083 | } | 
|---|