X-Git-Url: http://git.tuebingen.mpg.de/?p=adu.git;a=blobdiff_plain;f=adu.h;h=2a15457b4b335bda8d28f219c8f100acfc6c5740;hp=1118b2ca1e623c50078737aa5276328a34d4a9fe;hb=cecbe8525740b4a899cb1a6c91064e195ae1ada2;hpb=2cfa8c8aaa4662f44bc7e7cd4d3591ed6e1326bd diff --git a/adu.h b/adu.h index 1118b2c..2a15457 100644 --- a/adu.h +++ b/adu.h @@ -1,14 +1,14 @@ /* - * Copyright (C) 1997-2008 Andre Noll + * Copyright (C) 2008 Andre Noll * * Licensed under the GPL v2. For licencing details see COPYING. */ -/** \file para.h global paraslash definitions */ +/** \file adu.h Global definitions. */ #include #include -#include +#include #include #include #include /* time(), localtime() */ @@ -16,26 +16,12 @@ #include #include #include -#include -#include -#include -#include -#include /* needed by create_pf_socket */ +#include #include #include #include #include "gcc-compat.h" -/** used in various contexts */ -#define MAXLINE 255 - -/** compute the minimum of \a a and \a b */ -#define MIN(a,b) ((a) < (b) ? (a) : (b)) -/** compute the maximum of \a a and \a b */ -#define MAX(a,b) ((a) > (b) ? (a) : (b)) -/** compute the absolute value of \a a */ -#define ABS(a) ((a) > 0 ? (a) : -(a)) - /** debug loglevel, gets really noisy */ #define DEBUG 1 /** still noisy, but won't fill your disk */ @@ -98,70 +84,6 @@ #endif /** \endcond */ -/** - * define a standard log function that always writes to stderr - * - * \param loglevel_barrier If the loglevel of the current message - * is less than that, the message is going to be ignored. - * - */ -#define INIT_STDERR_LOGGING(loglevel_barrier) \ - __printf_2_3 void __log(int ll, const char* fmt,...) \ - { \ - va_list argp; \ - if (ll < loglevel_barrier) \ - return; \ - va_start(argp, fmt); \ - vfprintf(stderr, fmt, argp); \ - va_end(argp); \ - } - -/** version text used by various commands if -V switch was given */ -#define VERSION_TEXT(prefix) "para_" prefix " " PACKAGE_VERSION " (" CODENAME ")" "\n" \ - "Copyright (C) 2008 Andre Noll\n" \ - "This is free software with ABSOLUTELY NO WARRANTY." \ - " See COPYING for details.\n" \ - "Written by Andre Noll.\n" \ - "Report bugs to .\n" - -/** print out \p VERSION_TEXT and exit if version flag was given */ -#define HANDLE_VERSION_FLAG(_prefix, _args_info_struct) \ - if (_args_info_struct.version_given) { \ - printf("%s", VERSION_TEXT(_prefix)); \ - exit(EXIT_SUCCESS); \ - } -/** sent by para_server for commands that expect a data file */ -#define AWAITING_DATA_MSG "\nAwaiting Data." -/** sent by para_server if authentication was successful */ -#define PROCEED_MSG "\nProceed.\n" -/** length of the \p PROCEED_MSG string */ -#define PROCEED_MSG_LEN strlen(PROCEED_MSG) -/** sent by para_client to indicate the end of the command line */ -#define EOC_MSG "\nEnd of Command." -/** sent by para_client, followed by the decrypted challenge number */ -#define CHALLENGE_RESPONSE_MSG "challenge_response:" - -/* exec */ -int para_exec_cmdline_pid(pid_t *pid, const char *cmdline, int *fds); - -/* time */ -int tv_diff(const struct timeval *b, const struct timeval *a, struct timeval *diff); -long unsigned tv2ms(const struct timeval*); -void d2tv(double, struct timeval*); -void tv_add(const struct timeval*, const struct timeval *, struct timeval *); -void tv_scale(const unsigned long, const struct timeval *, struct timeval *); -void tv_divide(const unsigned long divisor, const struct timeval *tv, - struct timeval *result); -int tv_convex_combination(const long a, const struct timeval *tv1, - const long b, const struct timeval *tv2, - struct timeval *result); -void ms2tv(const long unsigned n, struct timeval *tv); -void compute_chunk_time(long unsigned chunk_num, - struct timeval *chunk_tv, struct timeval *stream_start, - struct timeval *result); - -__printf_2_3 void __log(int, const char*, ...); - /** * Write a log message to a dynamically allocated string. * @@ -173,7 +95,7 @@ __printf_2_3 void __log(int, const char*, ...); { \ int n; \ size_t size = 100; \ - p = para_malloc(size); \ + p = adu_malloc(size); \ while (1) { \ va_list ap; \ /* Try to print in the allocated space. */ \ @@ -188,39 +110,93 @@ __printf_2_3 void __log(int, const char*, ...); size = n + 1; /* precisely what is needed */ \ else /* glibc 2.0 */ \ size *= 2; /* twice the old size */ \ - p = para_realloc(p, size); \ + p = adu_realloc(p, size); \ } \ } -/** - * Return a random non-negative integer in an interval. - * - * \param max Determines maximal possible return value. - * - * \return An integer between zero and \p max - 1, inclusively. - */ -static inline long int para_random(unsigned max) -{ - return ((max + 0.0) * (random() / (RAND_MAX + 1.0))); -} - -/** Round up x to a multiple of y */ -#define ROUND_UP(x, y) (((x) + ((y) - 1) / (y)) * (y)) - -/** Get the size of an array */ -#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) - -/** - * Wrapper for isspace. - * NetBSD needs this. - */ -/* - * The values should be cast to an unsigned char first, then to int. - * Why? Because the isdigit (as do all other is/to functions/macros) - * expect a number from 0 upto and including 255 as their (int) argument. - * Because char is signed on most systems, casting it to int immediately - * gives the functions an argument between -128 and 127 (inclusive), - * which they will use as an array index, and which will thus fail - * horribly for characters which have their most significant bit set. - */ -#define para_isspace(c) isspace((int)(unsigned char)(c)) +/** Evaluates to 1 if x < y, to -1 if x > y and to 0 if x == y. */ +#define NUM_COMPARE(x, y) ((int)((x) < (y)) - (int)((x) > (y))) + +/** The columns of the directory table. */ +enum dir_table_columns { + /** The name of the directory. */ + DT_NAME, + /** The dir count number. */ + DT_NUM, + /** The number of the parent directory. */ + DT_PARENT_NUM, + /** The number of bytes of all regular files. */ + DT_BYTES, + /** The number of all regular files. */ + DT_FILES, + /** Number of columns in this table. */ + NUM_DT_COLUMNS +}; + +/** The columns of the id table. */ +enum user_table_columns { + /** The numer of the directory. */ + UT_DIR_NUM, + /** The number of bytes of all regular files in this dir owned by this id. */ + UT_BYTES, + /** The number of files in this dir owned by this id. */ + UT_FILES, + /** Number of columns in this table. */ + NUM_UT_COLUMNS +}; + +enum uid_info_flags { + /** Whether this slot of the hash table is used. */ + UI_FL_SLOT_USED = 1, + /** Whether this uid should be taken into account. */ + UI_FL_ADMISSIBLE = 2, +}; + +struct user_info { + uint32_t uid; + uint32_t flags; + char *pw_name; + struct osl_table *table; + uint64_t files; + uint64_t bytes; + uint64_t dirs; + struct osl_table_description *desc; +}; + +struct uid_range { + uint32_t low; + uint32_t high; +}; + +enum search_uid_flags { + OPEN_USER_TABLE = 1, + CREATE_USER_TABLE = 2, +}; + +#define FOR_EACH_UID_RANGE(ur, urs) for (ur = urs; ur->low <= ur->high; ur++) + +extern uint32_t num_uids; +extern struct osl_table *dir_table; +extern struct gengetopt_args_info conf; +extern struct select_args_info select_conf; + +/* adu.c */ +__printf_2_3 void __log(int, const char*, ...); +int open_dir_table(int create); +void check_signals(void); +void close_all_tables(void); +char *get_uid_list_name(void); +void create_hash_table(unsigned bits); +int search_uid(uint32_t uid, struct uid_range *urs, + enum search_uid_flags flags, struct user_info **ui_ptr); +int for_each_admissible_user(int (*func)(struct user_info *, void *), + void *data); +void sort_hash_table(int (*comp)(const void *, const void *)); + +/* select.c */ +int run_select_query(struct uid_range *admissible_uids); +int com_select(void); + +/* create.h */ +int com_create(void); +int com_interactive(void);