www.pudn.com > socks5.zip > pfs.h
/* * Copyright (c) 1989, 1990, 1991 by the University of Washington * * For copying and distribution information, please see the file *. */ #include #include #include #ifndef NULL # define NULL 0 #endif /* NULL */ #define PFS_RELEASE "Beta.4.2E" #define PFS_SW_ID "B42E" /* moved up for vdir_init */ #define ZERO(p) bzero((char *)(p), sizeof(*(p))) /* General Definitions */ #define MAX_PTXT_LEN 1250 /* Max length of PTEXT structure */ #define MAX_PTXT_HDR 32 /* Max offset for start */ #define P_ERR_STRING_SZ 100 /* Size of error string */ #define MAX_VPATH 1024 /* Max length of virtual pathname */ /* Definition of text structure used to pass text around */ struct ptext { int length; /* Length of text (from start) */ char *start; /* Start of text */ char dat[MAX_PTXT_LEN+2*MAX_PTXT_HDR];/* The data itself */ unsigned long mbz; /* ZERO to catch runaway strings */ struct ptext *previous; /* Previous element in list */ struct ptext *next; /* Next element in linked list */ int seq; /* Sequence Number */ }; typedef struct ptext *PTEXT; typedef struct ptext PTEXT_ST; /* Request structure: maintains information about server requests */ struct preq { int cid; /* Connection ID */ short priority; /* Connection priority */ int pf_priority; /* Priority assigned by pri_func */ int recv_tot; /* Total # of packets received */ int trns_tot; /* Total # of packets to transmit */ struct ptext *cpkt; /* Current packet being filled in */ struct ptext *recv; /* Received packets */ struct ptext *trns; /* Transmitted packets */ int rcvd_thru; /* Received all packets through # */ struct preq *previous; /* Previous element in list */ struct preq *next; /* Next element in linked list */ struct sockaddr_in fromto; /* Sender/Destination */ }; typedef struct preq *PREQ; typedef struct preq PREQ_ST; /* Definition of structure containing information on virtual link */ struct vlink { int dontfree; /* Flag: don't free this link */ char *name; /* Component of path name */ char linktype; /* L = Link, U = Union, N= Native */ int expanded; /* Has a union link been expanded */ char *type; /* Type of object pointed to */ struct vlink *filters; /* Filters associated with link */ struct vlink *replicas; /* Replicas (* see comment below) */ char *hosttype; /* Type of hostname */ char *host; /* Files physical location */ char *nametype; /* Type of filename */ char *filename; /* System level filename */ long version; /* Version number of destination */ long f_magic_no; /* File's magic number */ struct acl *acl; /* ACL for link */ long dest_exp; /* Expiration for dest of link */ long link_exp; /* Expiration of link itself */ char *args; /* Arguments if this is a filter */ struct pattrib *lattrib; /* Attributes associated w/ link */ struct pfile *f_info; /* Info to be assoicated w/ file */ struct vlink *previous; /* Previous elt in linked list */ struct vlink *next; /* Next element in linked list */ }; typedef struct vlink *VLINK; typedef struct vlink VLINK_ST; /* * Note that vlink->replicas is not really a list of replicas of the */ /* object. Instead, it is a list of the objects returned during name */ /* resolution that share the same name as the current object. Such */ /* an object should only be considered a replica if it also shares */ /* the same non-zero magic number. */ /* Definition of structure continiaing virtual directory information */ struct vdir { int version; /* Version of local directory fmt */ int inc_native; /* Include the native directory */ long magic_no; /* Magic number of current file */ struct acl *dacl; /* Default acl for links in dir */ struct pfile *f_info; /* Directory file info */ struct vlink *links; /* The directory entries */ struct vlink *lastlink; /* Last directory entry */ struct vlink *ulinks; /* The entries for union links */ struct vdir *previous; /* Previous element in linked list */ struct vdir *next; /* Next element in linked list */ }; typedef struct vdir *PVDIR; typedef struct vdir VDIR_ST; /* Initialize directory */ #define vdir_init(dir) ZERO(dir) /* XXX: was dir->version = 0; dir->inc_native = 0; \ dir->magic_no = 0; dir->f_info = NULL; \ dir->links = NULL; dir->lastlink = NULL; \ dir->ulinks = NULL; dir->dacl = NULL; \ dir->previous = NULL; dir->next = NULL; */ #define vdir_copy(d1,d2) d2->version = d1->version; \ d2->inc_native = d1->inc_native; \ d2->magic_no = d1->magic_no; \ d2->f_info = d1->f_info; \ d2->links = d1->links; \ d2->lastlink = d1->lastlink; \ d2->ulinks = d1->ulinks; \ d2->dacl = d1->dacl; \ d2->previous = d1->previous; \ d2->next = d1->next; /* Values of ->inc_native in vdir structure */ #define VDIN_REALONLY -1 /* Include native files, but not . and .. */ #define VDIN_NONATIVE 0 /* Do not include files from native directory */ #define VDIN_INCLNATIVE 1 /* Include files from native directory */ #define VDIN_NATIVEONLY 2 /* All entries in directory are from native dir */ #define VDIN_PSEUDO 3 /* Directory is not real */ /* Definition of structure containing information on a specific file */ union avalue { char *ascii; /* Character string */ struct vlink *link; /* A link */ }; struct pattrib { char precedence; /* Precedence for link attribute */ char *aname; /* Name of the attribute */ char *avtype; /* Type of the attribute value */ union avalue value; /* Attribute Value */ struct pattrib *previous; /* Previous element in linked list */ struct pattrib *next; /* Next element in linked list */ }; typedef struct pattrib *PATTRIB; typedef struct pattrib PATTRIB_ST; #define ATR_PREC_OBJECT 'O' /* Authoritative answer for object */ #define ATR_PREC_LINK 'L' /* Authoritative answer for link */ #define ATR_PREC_CACHED 'C' /* Object info cached w/ link */ #define ATR_PREC_REPLACE 'R' /* From link (replaces O) */ #define ATR_PREC_ADD 'A' /* From link (additional value) */ /* **** Incomplete **** */ struct pfile { int version; /* Version of local finfo format */ long f_magic_no; /* Magic number of current file */ long exp; /* Expiration date of timeout */ long ttl; /* Time to live after reference */ long last_ref; /* Time of last reference */ struct vlink *forward; /* List of forwarding pointers */ struct vlink *backlinks; /* Partial list of back links */ struct pattrib *attributes; /* List of file attributes */ struct pfile *previous; /* Previous element in linked list */ struct pfile *next; /* Next element in linked list */ }; typedef struct pfile *PFILE; typedef struct pfile PFILE_ST; /* Definition of structure contining an access control list entry */ struct acl { int acetype; /* Access Contol Entry type */ char *atype; /* Authentication type */ char *rights; /* Rights */ char *principals; /* Authorized principals */ struct archie_restrict *restrictions; /* Restrictions on use */ struct acl *previous; /* Previous elt in linked list */ struct acl *next; /* Next element in linked list */ }; typedef struct acl *ACL; typedef struct acl ACL_ST; #define ACL_NONE 0 /* Nobody authorized by ths entry */ #define ACL_DEFAULT 1 /* System default */ #define ACL_SYSTEM 2 /* System administrator */ #define ACL_OWNER 3 /* Directory owner */ #define ACL_DIRECTORY 4 /* Same as directory */ #define ACL_ANY 5 /* Any user */ #define ACL_AUTHENT 6 /* Authenticated principal */ #define ACL_LGROUP 7 /* Local group */ #define ACL_GROUP 8 /* External group */ #define ACL_ASRTHOST 10 /* Check host and asserted userid */ #define ACL_TRSTHOST 11 /* ASRTHOST from privileged port */ /* Definition of structure contining access restrictions */ /* for future extensions */ struct archie_restrict { struct acl *previous; /* Previous elt in linked list */ struct acl *next; /* Next element in linked list */ }; /* Definitions for send_to_dirsrv */ #define CLIENT_DIRSRV_TIMEOUT 4 /* time between retries */ #define CLIENT_DIRSRV_BACKOFF(x) (2 * x) /* Backoff algorithm */ #define CLIENT_DIRSRV_RETRY 3 /* retry this many times */ /* Definitions for rd_vlink and rd_vdir */ #define SYMLINK_NESTING 10 /* Max nesting depth for sym links */ /* Definition fo check_acl */ #define ACL_NESTING 10 /* Max depth for ACL group nesting */ /* Flags for mk_vdir */ #define MKVD_LPRIV 1 /* Minimize privs for creator in new ACL */ /* Flags for get_vdir */ #define GVD_UNION 0 /* Do not expand union links */ #define GVD_EXPAND 1 /* Expand union links locally */ #define GVD_LREMEXP 3 /* Request remote expansion of local links */ #define GVD_REMEXP 7 /* Request remote expansion of all links */ #define GVD_VERIFY 8 /* Only verify args are for a directory */ #define GVD_FIND 16 /* Stop expanding when match is found */ #define GVD_ATTRIB 32 /* Request attributes from remote server */ #define GVD_NOSORT 64 /* Do not sort links when adding to dir */ /* Flags for rd_vdir */ #define RVD_UNION GVD_UNION #define RVD_EXPAND GVD_EXPAND #define RVD_LREMEXP GVD_LREMEXP #define RVD_REMEXP GVD_REMEXP #define RVD_DFILE_ONLY GVD_VERIFY /* Only return ptr to dir file */ #define RVD_FIND GVD_FIND #define RVD_ATTRIB GVD_ATTRIB #define RVD_NOSORT GVD_NOSORT #define RVD_NOCACHE 128 /* Flags for add_vlink */ #define AVL_UNION 1 /* Link is a union link */ /* Flags for vl_insert */ #define VLI_NOCONFLICT 0 /* Do not insert links w/ conflicting names */ #define VLI_ALLOW_CONF 1 /* Allow links with conflicting names */ #define VLI_NOSORT 2 /* Allow conflicts and don't sort */ /* Flags for mapname */ #define MAP_READWRITE 0 /* Named file to be read and written */ #define MAP_READONLY 1 /* Named file to be read only */ /* Flags for modify_acl */ #define MACL_NOSYSTEM 0x01 #define MACL_NOSELF 0x02 #define MACL_DEFAULT 0x08 #define MACL_SET 0x0C #define MACL_INSERT 0x14 #define MACL_DELETE 0x10 #define MACL_ADD 0x1C #define MACL_SUBTRACT 0x18 #define MACL_LINK 0x00 #define MACL_DIRECTORY 0x20 #define MACL_OBJECT 0x60 #define MACL_INCLUDE 0x40 #define MACL_OP (MACL_DEFAULT|MACL_SET|MACL_INSERT|\ MACL_DELETE|MACL_ADD|MACL_SUBTRACT) #define MACL_OTYPE (MACL_LINK|MACL_DIRECTORY|MACL_OBJECT|MACL_INCLUDE) /* Flags for dsrdir */ #define DSRD_ATTRIBUTES 0x1 /* Fill in attributes for links */ /* Access methods returned by Pget_am */ #define P_AM_ERROR 0 #define P_AM_FTP 1 #define P_AM_AFTP 2 /* Anonymous FTP */ #define P_AM_NFS 4 #define P_AM_KNFS 8 /* Kerberized NFS */ #define P_AM_AFS 16 /* Return codes */ #define PSUCCESS 0 #define PFAILURE 255 /* Hush up warnings. */ void vllfree(); /* Procedures in libpfs.a */ char *pget_wdhost(), *pget_wdfile(), *pget_wd(), *pget_hdhost(); char *pget_hdfile(), *pget_hd(), *pget_rdhost(), *pget_rdfile(); char *pget_dhost(), *pget_dfile(), *pget_vsname(), *nlsindex(); char *sindex(), *strtok(), *nxtline(), *unquote(), *stcopy(); char *stcopyr(), *readheader(), *month_sname(); long asntotime(); void procquery(); PTEXT ptalloc(); PTEXT dirsend(); void ptfree(); void ptlfree(); PREQ pralloc(); PREQ get_next_request(); VLINK rd_slink(); VLINK rd_vlink(); VLINK vl_delete(); VLINK vlalloc(); VLINK vlcopy(); void vlfree(); int vl_comp(); int vl_equal(); int vl_insert(); int ul_insert(); PFILE pfalloc(); PATTRIB parse_attribute(); PATTRIB atalloc(); PATTRIB pget_at(); void atfree(); void atlfree(); ACL acalloc(); ACL get_acl(); void stfree(); int get_vdir(); int wcmatch(); int scan_error(); /* Miscellaneous useful definitions */ #ifndef TRUE #define TRUE 1 #endif #ifndef FALSE #define FALSE 0 #endif #define AUTHORIZED 1 #define NOT_AUTHORIZED 0 #define NEG_AUTHORIZED -1 #ifndef NULL #define NULL 0 #endif #define FAILED -1