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#ifndef H_RPMSX
#define H_RPMSX
/** \ingroup rpmdep rpmtrans
* \file lib/rpmsx.h
* Structure(s) used for file security context pattern handling
*/
#include <regex.h>
/**
*/
/*@-exportlocal@*/
/*@unchecked@*/
extern int _rpmsx_debug;
/*@=exportlocal@*/
/**
*/
/*@-exportlocal@*/
/*@unchecked@*/
extern int _rpmsx_nopromote;
/*@=exportlocal@*/
typedef /*@abstract@*/ /*@refcounted@*/ struct rpmsx_s * rpmsx;
typedef struct rpmsxp_s * rpmsxp;
typedef struct rpmsxs_s * rpmsxs;
#if defined(_RPMSX_INTERNAL)
/**
* File security context regex pattern.
*/
struct rpmsxp_s {
/*@only@*/ /*@relnull@*/
const char * pattern; /*!< File path regex pattern. */
/*@only@*/ /*@relnull@*/
const char * type; /*!< File type string. */
/*@only@*/ /*@relnull@*/
const char * context; /*!< Security context. */
/*@only@*/ /*@relnull@*/
regex_t * preg; /*!< Compiled regex. */
mode_t fmode; /*!< File type. */
int matches;
int hasMetaChars;
int fstem; /*!< Stem id. */
};
/**
* File/pattern stem.
*/
struct rpmsxs_s {
/*@only@*/ /*@relnull@*/
const char * stem;
int len;
};
/**
* File security context patterns container.
*/
struct rpmsx_s {
/*@only@*/ /*@relnull@*/
rpmsxp sxp; /*!< File context patterns. */
int Count; /*!< No. of file context patterns. */
int i; /*!< Current pattern index. */
/*@only@*/ /*@relnull@*/
rpmsxs sxs; /*!< File stems. */
int nsxs; /*!< No. of file stems. */
int maxsxs; /*!< No. of allocated file stems. */
int reverse; /*!< Reverse traversal? */
/*@refs@*/
int nrefs; /*!< Reference count. */
};
#endif /* defined(_RPMSX_INTERNAL) */
#ifdef __cplusplus
extern "C" {
#endif
/**
* Unreference a security context patterns instance.
* @param sx security context patterns
* @param msg
* @return NULL always
*/
/*@unused@*/ /*@null@*/
rpmsx rpmsxUnlink (/*@killref@*/ /*@only@*/ /*@null@*/ rpmsx sx,
/*@null@*/ const char * msg)
/*@modifies sx @*/;
/** @todo Remove debugging entry from the ABI. */
/*@-exportlocal@*/
/*@null@*/
rpmsx XrpmsxUnlink (/*@killref@*/ /*@only@*/ /*@null@*/ rpmsx sx,
/*@null@*/ const char * msg, const char * fn, unsigned ln)
/*@modifies sx @*/;
/*@=exportlocal@*/
#define rpmsxUnlink(_sx, _msg) XrpmsxUnlink(_sx, _msg, __FILE__, __LINE__)
/**
* Reference a security context patterns instance.
* @param sx security context patterns
* @param msg
* @return new security context patterns reference
*/
/*@-exportlocal@*/
/*@unused@*/ /*@newref@*/ /*@null@*/
rpmsx rpmsxLink (/*@null@*/ rpmsx sx, /*@null@*/ const char * msg)
/*@modifies sx @*/;
/** @todo Remove debugging entry from the ABI. */
/*@newref@*/ /*@null@*/
rpmsx XrpmsxLink (/*@null@*/ rpmsx sx, /*@null@*/ const char * msg,
const char * fn, unsigned ln)
/*@modifies sx @*/;
/*@=exportlocal@*/
#define rpmsxLink(_sx, _msg) XrpmsxLink(_sx, _msg, __FILE__, __LINE__)
/**
* Destroy a security context patterns.
* @param sx security context patterns
* @return NULL always
*/
/*@-exportlocal@*/
/*@null@*/
rpmsx rpmsxFree(/*@killref@*/ /*@only@*/ /*@null@*/ rpmsx sx)
/*@modifies sx@*/;
/*@=exportlocal@*/
/**
* Parse selinux file security context patterns.
* @param sx security context patterns
* @param fn file name to parse
* @return 0 on success
*/
/*@-exportlocal@*/
int rpmsxParse(rpmsx sx, /*@null@*/ const char *fn)
/*@globals rpmGlobalMacroContext, h_errno, fileSystem @*/
/*@modifies sx, rpmGlobalMacroContext, h_errno, fileSystem @*/;
/*@=exportlocal@*/
/**
* Create and load security context patterns.
* @param fn security context patterns file name
* @return new security context patterns
*/
/*@null@*/
rpmsx rpmsxNew(const char * fn)
/*@globals rpmGlobalMacroContext, h_errno, fileSystem @*/
/*@modifies rpmGlobalMacroContext, h_errno, fileSystem @*/;
/**
* Return security context patterns count.
* @param sx security context patterns
* @return current count
*/
int rpmsxCount(/*@null@*/ const rpmsx sx)
/*@*/;
/**
* Return security context patterns index.
* @param sx security context patterns
* @return current index
*/
int rpmsxIx(/*@null@*/ const rpmsx sx)
/*@*/;
/**
* Set security context patterns index.
* @param sx security context patterns
* @param ix new index
* @return current index
*/
int rpmsxSetIx(/*@null@*/ rpmsx sx, int ix)
/*@modifies sx @*/;
/**
* Return current pattern.
* @param sx security context patterns
* @return current pattern, NULL on invalid
*/
/*@-exportlocal@*/
/*@observer@*/ /*@null@*/
extern const char * rpmsxPattern(/*@null@*/ const rpmsx sx)
/*@*/;
/*@=exportlocal@*/
/**
* Return current type.
* @param sx security context patterns
* @return current type, NULL on invalid/missing
*/
/*@-exportlocal@*/
/*@observer@*/ /*@null@*/
extern const char * rpmsxType(/*@null@*/ const rpmsx sx)
/*@*/;
/*@=exportlocal@*/
/**
* Return current context.
* @param sx security context patterns
* @return current context, NULL on invalid
*/
/*@-exportlocal@*/
/*@observer@*/ /*@null@*/
extern const char * rpmsxContext(/*@null@*/ const rpmsx sx)
/*@*/;
/*@=exportlocal@*/
/**
* Return current regex.
* @param sx security context patterns
* @return current context, NULL on invalid
*/
/*@-exportlocal@*/
/*@observer@*/ /*@null@*/
extern regex_t * rpmsxRE(/*@null@*/ const rpmsx sx)
/*@*/;
/*@=exportlocal@*/
/**
* Return current file mode.
* @param sx security context patterns
* @return current file mode, 0 on invalid
*/
/*@-exportlocal@*/
extern mode_t rpmsxFMode(/*@null@*/ const rpmsx sx)
/*@*/;
/*@=exportlocal@*/
/**
* Return current file stem.
* @param sx security context patterns
* @return current file stem, -1 on invalid
*/
/*@-exportlocal@*/
extern int rpmsxFStem(/*@null@*/ const rpmsx sx)
/*@*/;
/*@=exportlocal@*/
/**
* Return next security context patterns iterator index.
* @param sx security context patterns
* @return security context patterns iterator index, -1 on termination
*/
/*@-exportlocal@*/
int rpmsxNext(/*@null@*/ rpmsx sx)
/*@modifies sx @*/;
/*@=exportlocal@*/
/**
* Initialize security context patterns iterator.
* @param sx security context patterns
* @param reverse iterate in reverse order?
* @return security context patterns
*/
/*@-exportlocal@*/
/*@null@*/
rpmsx rpmsxInit(/*@null@*/ rpmsx sx, int reverse)
/*@modifies sx @*/;
/*@=exportlocal@*/
/**
* Find file security context from path and type.
* @param sx security context patterns
* @param fn file path
* @param fmode file mode
* @return file security context
*/
/*@owned@*/ /*@null@*/
const char * rpmsxFContext(/*@null@*/ rpmsx sx, const char * fn, mode_t fmode)
/*@modifies sx @*/;
#ifdef __cplusplus
}
#endif
#endif /* H_RPMSX */
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