/* aide, Advanced Intrusion Detection Environment

 *

 * Copyright (C) 1999-2007,2010-2013,2015,2016 Rami Lehti, Pablo Virolainen,

 * Richard van den Berg, Mike Markley, Hannes von Haugwitz

 * $Id$

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License as

 * published by the Free Software Foundation; either version 2 of the

 * License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful, but

 * WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

 * General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 */

#include "aide.h"

#include <stdlib.h>

#include <string.h>

#include <time.h>

#include <sys/stat.h>

#include <math.h>

#ifdef WITH_AUDIT

#include <libaudit.h>

#ifdef HAVE_SYSLOG

#include <syslog.h>

#endif

#endif

#include "base64.h"

#include "report.h"

#include "db_config.h"

#include "gen_list.h"

#include "list.h"

#include "db.h"

#include "util.h"

#include "commandconf.h"

#include "gen_list.h"

#include "compare_db.h"

/*for locale support*/

#include "locale-aide.h"

/*for locale support*/

#include "md.h"

/*************/

/* construction area for report lines */

const int width_details = 80;

const char time_format[] = "%Y-%m-%d %H:%M:%S %z";

const int time_string_len = 26;

long ntotal, nadd, nrem, nchg = 0;

const char* report_top_format = "\n\n---------------------------------------------------\n%s:\n---------------------------------------------------\n";

DB_ATTR_TYPE ignored_added_attrs, ignored_removed_attrs, ignored_changed_attrs, forced_attrs;

const DB_ATTR_TYPE summary_attributes[] = { DB_FTYPE, DB_LINKNAME, DB_SIZE|DB_SIZEG, DB_BCOUNT, DB_PERM, DB_UID, DB_GID, DB_ATIME, DB_MTIME, DB_CTIME, DB_INODE, DB_LNKCOUNT, DB_HASHES

#ifdef WITH_ACL

        , DB_ACL

#endif

#ifdef WITH_XATTR

        , DB_XATTRS

#endif

#ifdef WITH_SELINUX

        , DB_SELINUX

#endif

#ifdef WITH_E2FSATTRS

        , DB_E2FSATTRS

#endif

};

const char summary_char[] = { '!' ,'l', '>', 'b', 'p', 'u', 'g', 'a', 'm', 'c', 'i', 'n', 'C'

#ifdef WITH_ACL

    , 'A'

#endif

#ifdef WITH_XATTR

    , 'X'

#endif

#ifdef WITH_SELINUX

    , 'S'

#endif

#ifdef WITH_E2FSATTRS

    , 'E'

#endif

};

const DB_ATTR_TYPE details_attributes[] = { DB_FTYPE, DB_LINKNAME, DB_SIZE, DB_SIZEG, DB_BCOUNT, DB_PERM, DB_UID, DB_GID, DB_ATIME, DB_MTIME, DB_CTIME, DB_INODE, DB_LNKCOUNT, DB_MD5, DB_SHA1, DB_RMD160, DB_TIGER, DB_SHA256, DB_SHA512

#ifdef WITH_MHASH

    , DB_CRC32, DB_HAVAL, DB_GOST, DB_CRC32B, DB_WHIRLPOOL

#endif

#ifdef WITH_ACL

        , DB_ACL

#endif

#ifdef WITH_XATTR

        , DB_XATTRS

#endif

#ifdef WITH_SELINUX

        , DB_SELINUX

#endif

#ifdef WITH_E2FSATTRS

        , DB_E2FSATTRS

#endif

};

const char* details_string[] = { _("File type") , _("Lname"), _("Size"), _("Size"), _("Bcount"), _("Perm"), _("Uid"), _("Gid"), _("Atime"), _("Mtime"), _("Ctime"), _("Inode"), _("Linkcount"), _("MD5"), _("SHA1"), _("RMD160"), _("TIGER"), _("SHA256"), _("SHA512")

#ifdef WITH_MHASH

    , _("CRC32"), _("HAVAL"), _("GOST"), _("CRC32B"), _("WHIRLPOOL")

#endif

#ifdef WITH_ACL

    , _("ACL")

#endif

#ifdef WITH_XATTR

    , _("XAttrs")

#endif

#ifdef WITH_SELINUX

    , _("SELinux")

#endif

#ifdef WITH_E2FSATTRS

    , _("E2FSAttrs")

#endif

};

const char* attrs_string[] = { "filename", "l", "p", "u", "g", "s", "a", "c", "m", "i", "b", "n",

                               "md5", "sha1", "rmd160", "tiger", "crc32", "haval", "gost", "crc32b",

                               "attr", "acl", "bsize", "rdev", "dev", "checkmask", "S", "I", "ANF",

                               "ARF", "sha256", "sha512", "selinux", "xattrs", "whirlpool", "ftype",

                               "e2fsattrs" };

#ifdef WITH_E2FSATTRS

    /* flag->character mappings taken from lib/e2p/pf.c (git commit c46b57b)

     * date: 2015-05-10

     * sources: git://git.kernel.org/pub/scm/fs/ext2/e2fsprogs.git

     *

     * on update see also do_e2fsattrs in commandconf.c

     */

    unsigned long flag_bits[] = { EXT2_SECRM_FL, EXT2_UNRM_FL, EXT2_SYNC_FL, EXT2_DIRSYNC_FL, EXT2_IMMUTABLE_FL,

        EXT2_APPEND_FL, EXT2_NODUMP_FL, EXT2_NOATIME_FL, EXT2_COMPR_FL, EXT2_COMPRBLK_FL,

        EXT2_DIRTY_FL, EXT2_NOCOMPR_FL,

#ifdef EXT2_ECOMPR_FL

        EXT2_ECOMPR_FL,

#else

        EXT4_ENCRYPT_FL,

#endif

        EXT3_JOURNAL_DATA_FL, EXT2_INDEX_FL,

        EXT2_NOTAIL_FL, EXT2_TOPDIR_FL

#ifdef EXT4_EXTENTS_FL

        , EXT4_EXTENTS_FL

#endif

#ifdef EXT4_HUGE_FILE_FL

        , EXT4_HUGE_FILE_FL

#endif

#ifdef FS_NOCOW_FL

    , FS_NOCOW_FL

#endif

#ifdef EXT4_INLINE_DATA_FL

    , EXT4_INLINE_DATA_FL

#endif

    };

    char flag_char[] = { 's', 'u', 'S', 'D', 'i', 'a', 'd', 'A', 'c', 'B', 'Z', 'X', 'E', 'j', 'I', 't', 'T'

#ifdef EXT4_EXTENTS_FL

    , 'e'

#endif

#ifdef EXT4_HUGE_FILE_FL

    , 'h'

#endif

#ifdef FS_NOCOW_FL

    , 'C'

#endif

#ifdef EXT4_INLINE_DATA_FL

    , 'N'

#endif

    };

/*************/

#endif

static DB_ATTR_TYPE get_special_report_group(char* group) {

    DB_ATTR_TYPE attr = get_groupval(group);

    return attr==DB_ATTR_UNDEF?0:attr;

}

static char* report_attrs(DB_ATTR_TYPE attrs) {

    char* str;

    int j = 1;

    int num_attrs = sizeof(attrs_string)/sizeof(char*);

    for (int i = 0; i < num_attrs; ++i) {

        if ((1LLU<

            j += strlen(attrs_string[i])+1;

        }

    }

    str = malloc(j * sizeof (char));

    j=0;

    for (int i = 0; i < num_attrs; ++i) {

        if ((1LLU<

            if (j) { str[j++] = '+'; }

            j += sprintf(&str[j], "%s", attrs_string[i]);

        }

    }

    str[j] = '\0';

    return str;

}

static char get_file_type_char(mode_t mode) {

    switch (mode & S_IFMT) {

        case S_IFREG: return 'f';

        case S_IFDIR: return 'd';

#ifdef S_IFIFO

        case S_IFIFO: return 'p';

#endif

        case S_IFLNK: return 'l';

        case S_IFBLK: return 'b';

        case S_IFCHR: return 'c';

#ifdef S_IFSOCK

        case S_IFSOCK: return 's';

#endif

#ifdef S_IFDOOR

        case S_IFDOOR: return 'D';

#endif

#ifdef S_IFPORT

        case S_IFPORT: return 'P';

#endif

        default: return '?';

    }

}

#ifdef WITH_XATTR

static size_t xstrnspn(const char *s1, size_t len, const char *srch)

{

  const char *os1 = s1;

  while (len-- && strchr(srch, *s1))

    ++s1;

  return (s1 - os1);

}

#define PRINTABLE_XATTR_VALS                    \

    "0123456789"                                \

    "abcdefghijklmnopqrstuvwxyz"                \

    "ABCDEFGHIJKLMNOPQRSTUVWXYZ"                \

    ".-_:;,[]{}<>()!@#$%^&*|\\/?~"

static int xattrs2array(xattrs_type* xattrs, char* **values) {

    int n = 0;

    if (xattrs==NULL) { n=1; }

    else { n=1+xattrs->num; }

    *values = malloc(n * sizeof(char*));

    (*values)[0]=malloc((6+floor(log10(n)))*sizeof(char));

    snprintf((*values)[0], 6+floor(log10(n)), "num=%d", n-1);

    if (n>1) {

        size_t num = 0;

        int width, length;

        width = log10(xattrs->num); /* make them the same width */

        while (num++ < xattrs->num) {

            char *val = NULL;

            size_t len = 0;

            val = (char *)xattrs->ents[num - 1].val;

            len = xstrnspn(val, xattrs->ents[num - 1].vsz, PRINTABLE_XATTR_VALS);

            if ((len ==  xattrs->ents[num - 1].vsz) || ((len == (xattrs->ents[num - 1].vsz - 1)) && !val[len])) {

                length = 8 + width + strlen(xattrs->ents[num - 1].key) + strlen(val);

                (*values)[num]=malloc(length *sizeof(char));

                char * fmt = "[%.*zd] %s = %s";

                if (conf->syslog_format) fmt = "[%.*zd]%s=%s"; // its smaller so it has to be enough space allocated.

                snprintf((*values)[num], length , fmt, width, num, xattrs->ents[num - 1].key, val);

            } else {

                val = encode_base64(xattrs->ents[num - 1].val, xattrs->ents[num - 1].vsz);

                length = 10 + width + strlen(xattrs->ents[num - 1].key) + strlen(val);

                (*values)[num]=malloc( length  *sizeof(char));

                char * fmt = "[%.*zd] %s <=> %s";

                if (conf->syslog_format) fmt = "[%.*zd]%s<=>%s"; // its smaller so it has to be enough space allocated.

                snprintf((*values)[num], length , fmt, width, num, xattrs->ents[num - 1].key, val);

                free(val);

            }

        }

    }

    return n;

}

#endif

#ifdef WITH_ACL

static int acl2array(acl_type* acl, char* **values) {

    int n = 0;

#ifdef WITH_POSIX_ACL

#define easy_posix_acl(x,y) \

        if (acl->x) { \

            i = k = 0; \

            while (acl->x[i]) { \

                if (acl->x[i]=='\n') { \

                    (*values)[j]=malloc(4+(i-k)*sizeof(char)); \

                    snprintf((*values)[j], 4+(i-k), "%c: %s", y, &acl->x[k]); \

                    j++; \

                    k=i+1; \

                } \

                i++; \

            } \

        }

    if (acl->acl_a || acl->acl_d) {

        int j, k, i;

        if (conf->syslog_format) {

            *values = malloc(2 * sizeof(char*));

            char *A= "<NONE>", *D = "<NONE>";

            if (acl->acl_a) { A = acl->acl_a; } 

            if (acl->acl_d) { D = acl->acl_d; } 

            (*values)[0] = (char*) malloc(strlen(A) + 3); // "A:" and \0

            snprintf((*values)[0], strlen(A) + 3, "A:%s", A);

            (*values)[1] = (char*) malloc(strlen(D) + 3); // "D:" and \0

            snprintf((*values)[1], strlen(D) + 3, "D:%s", D);

            i = 0; while ( (*values)[0][i] ) { if ( (*values)[0][i]=='\n') { (*values)[0][i] = ' '; } i++; }

            i = 0; while ( (*values)[1][i] ) { if ( (*values)[1][i]=='\n') { (*values)[1][i] = ' '; } i++; }

            return 2;

        }

        if (acl->acl_a) { i = 0; while (acl->acl_a[i]) { if (acl->acl_a[i++]=='\n') { n++; } } }

        if (acl->acl_d) { i = 0; while (acl->acl_d[i]) { if (acl->acl_d[i++]=='\n') { n++; } } }

        *values = malloc(n * sizeof(char*));

        j = 0;

        easy_posix_acl(acl_a, 'A')

        easy_posix_acl(acl_d, 'D')

    }

#endif

#ifdef WITH_SUN_ACL

/* FIXME: readd sun acl support */

#endif

    return n;

}

#endif

#ifdef WITH_E2FSATTRS

static char* e2fsattrs2string(unsigned long flags, int flags_only) {

    int length = sizeof(flag_bits)/sizeof(long);

    char* string = malloc ((length+1) * sizeof (char));

    int j = 0;

    for (int i = 0 ; i < length ; i++) {

        if (!flags_only && flag_bits[i]&(conf->report_ignore_e2fsattrs)) {

            string[j++]=':';

        } else if (flag_bits[i] & flags) {

            string[j++]=flag_char[i];

        } else if (!flags_only) {

            string[j++]='-';

        }

    }

    string[j] = '\0';

    return string;

}

#endif

static char* get_file_type_string(mode_t mode) {

    switch (mode & S_IFMT) {

        case S_IFREG: return conf->syslog_format ? "file" : _("File");

        case S_IFDIR: return conf->syslog_format ? "dir" : _("Directory");

#ifdef S_IFIFO

        case S_IFIFO: return conf->syslog_format ? "fifo" : _("FIFO");

#endif

        case S_IFLNK: return conf->syslog_format ? "link" : _("Link");

        case S_IFBLK: return conf->syslog_format ? "blockd" : _("Block device");

        case S_IFCHR: return conf->syslog_format ? "chard" : _("Character device");

#ifdef S_IFSOCK

        case S_IFSOCK: return conf->syslog_format ? "socket" : _("Socket");

#endif

#ifdef S_IFDOOR

        case S_IFDOOR: return conf->syslog_format ? "door" : _("Door");

#endif

#ifdef S_IFPORT

        case S_IFPORT: return conf->syslog_format ? "port" : _("Port");

#endif

        case 0: return NULL;

        default: return conf->syslog_format ? "unknown" : _("Unknown file type");

    }

}

static char* byte_to_base16(byte* src, size_t ssize) {

    char* str = malloc((2*ssize+1) * sizeof (char));

    size_t i;

    for(i=0; i < ssize; ++i) {

        snprintf(&str[2*i], 3, "%02x", src[i]);

    }

    return str;

}

static int get_attribute_values(DB_ATTR_TYPE attr, db_line* line,

        char* **values) {

#define easy_string(s) \

l = strlen(s)+1; \

*values[0] = malloc(l * sizeof (char)); \

snprintf(*values[0], l, "%s",s);

#define easy_md(a,b,c) \

} else if (a&attr) { \

    if (conf->report_base16) { \

        *values[0] = byte_to_base16(line->b, c); \

    } else { \

        *values[0] = encode_base64(line->b, c); \

    }

#define easy_number(a,b,c) \

} else if (a&attr) { \

    l = 2+floor(line->b?log10(line->b):0); \

    *values[0] = malloc(l * sizeof (char)); \

    snprintf(*values[0], l, c,line->b);

#define easy_time(a,b) \

} else if (a&attr) { \

    *values[0] = malloc(time_string_len * sizeof (char));  \

    strftime(*values[0], time_string_len, time_format, localtime(&(line->b)));

    int l;

    if (line==NULL || !(line->attr&attr)) {

        *values = NULL;

        return 0;

#ifdef WITH_ACL

    } else if (DB_ACL&attr) {

        return acl2array(line->acl, &*values);

#endif

#ifdef WITH_XATTR

    } else if (DB_XATTRS&attr) {

        return xattrs2array(line->xattrs, &*values);

#endif

    } else {

        *values = malloc(1 * sizeof (char*));

        if (DB_FTYPE&attr) {

            easy_string(get_file_type_string(line->perm))

        } else if (DB_LINKNAME&attr) {

            easy_string(line->linkname)

        easy_number((DB_SIZE|DB_SIZEG),size,"%li")

        } else if (DB_PERM&attr) {

            *values[0] = perm_to_char(line->perm);

        easy_time(DB_ATIME,atime)

        easy_time(DB_MTIME,mtime)

        easy_time(DB_CTIME,ctime)

        easy_number(DB_BCOUNT,bcount,"%li")

        easy_number(DB_UID,uid,"%i")

        easy_number(DB_GID,gid,"%i")

        easy_number(DB_INODE,inode,"%lu")

        easy_number(DB_LNKCOUNT,nlink,"%lu")

        easy_md(DB_MD5,md5,HASH_MD5_LEN)

        easy_md(DB_SHA1,sha1,HASH_SHA1_LEN)

        easy_md(DB_RMD160,rmd160,HASH_RMD160_LEN)

        easy_md(DB_TIGER,tiger,HASH_TIGER_LEN)

        easy_md(DB_SHA256,sha256,HASH_SHA256_LEN)

        easy_md(DB_SHA512,sha512,HASH_SHA512_LEN)

#ifdef WITH_MHASH

        easy_md(DB_CRC32,crc32,HASH_CRC32_LEN)

        easy_md(DB_HAVAL,haval,HASH_HAVAL256_LEN)

        easy_md(DB_GOST,gost,HASH_GOST_LEN)

        easy_md(DB_CRC32B,crc32b,HASH_CRC32B_LEN)

        easy_md(DB_WHIRLPOOL,whirlpool,HASH_WHIRLPOOL_LEN)

#endif

#ifdef WITH_SELINUX

        } else if (DB_SELINUX&attr) {

            easy_string(line->cntx)

#endif

#ifdef WITH_E2FSATTRS

        } else if (DB_E2FSATTRS&attr) {

            *values[0]=e2fsattrs2string(line->e2fsattrs, 0);

#endif

        } else {

            easy_string("unknown attribute")

        }

        return 1;

    }

}

static void print_line(seltree* node) {

    if(conf->summarize_changes==1) {

        int i;

        int length = sizeof(summary_attributes)/sizeof(DB_ATTR_TYPE);

        char* summary = malloc ((length+1) * sizeof (char));

        if (node->checked&(NODE_ADDED|NODE_REMOVED)) {

            summary[0]=get_file_type_char((node->checked&NODE_REMOVED?node->old_data:node->new_data)->perm);

            for(i=1;i

                summary[i]=node->checked&NODE_ADDED?'+':'-';

            }

        } else if (node->checked&NODE_CHANGED) {

            char c, u, a, r, g, s;

            for(i=0;i

                c = summary_char[i];

                r = '-'; a = '+'; g = ':'; u = '.'; s = ' ';

                switch (i) {

                    case 0:

                        summary[i]=get_file_type_char((node->new_data)->perm);

                        continue;

                    case 2:

                        if (summary_attributes[i]&(node->changed_attrs&(~ignored_changed_attrs)) && (node->old_data)->size > (node->new_data)->size) {

                            c = '<';

                        }

                        u = '=';

                        break;

                }

                if (summary_attributes[i]&node->changed_attrs&(forced_attrs|(~ignored_changed_attrs))) {

                    summary[i]=c;

                } else if (summary_attributes[i]&((node->old_data)->attr&~((node->new_data)->attr)&(forced_attrs|~(ignored_removed_attrs)))) {

                    summary[i]=r;

                } else if (summary_attributes[i]&~((node->old_data)->attr)&(node->new_data)->attr&(forced_attrs|~(ignored_added_attrs))) {

                    summary[i]=a;

                } else if (summary_attributes[i]& (

                             (((node->old_data)->attr&~((node->new_data)->attr)&ignored_removed_attrs))|

                            (~((node->old_data)->attr)&(node->new_data)->attr&ignored_added_attrs)|

                             (((node->old_data)->attr&(node->new_data)->attr)&ignored_changed_attrs)

                            ) ) {

                    summary[i]=g;

                } else if (summary_attributes[i]&((node->old_data)->attr&(node->new_data)->attr)) {

                    summary[i]=u;

                } else {

                    summary[i]=s;

                }

            }

        }

        summary[length]='\0';

        error(2,"\n%s: %s", summary, (node->checked&NODE_REMOVED?node->old_data:node->new_data)->filename);

        free(summary); summary=NULL;

    } else {

        if (node->checked&NODE_ADDED) {

            error(2,"added: %s\n",(node->new_data)->filename);

        } else if (node->checked&NODE_REMOVED) {

            error(2,"removed: %s\n",(node->old_data)->filename);

        } else if (node->checked&NODE_CHANGED) {

            error(2,"changed: %s\n",(node->new_data)->filename);

        }

    }

}

static void print_dbline_attributes(db_line* oline, db_line* nline, DB_ATTR_TYPE

        changed_attrs, DB_ATTR_TYPE force_attrs) {

    char **ovalue, **nvalue;

    int onumber, nnumber, olen, nlen, i, j, k, c;

    int length = sizeof(details_attributes)/sizeof(DB_ATTR_TYPE);

    int p = (width_details-(width_details%2?13:14))/2;

    DB_ATTR_TYPE attrs;

    error(2,"\n");

    char *file_type = get_file_type_string((nline==NULL?oline:nline)->perm);

    if (file_type) {

        error(2,"%s: ", file_type);

    }

    error(2,"%s\n", (nline==NULL?oline:nline)->filename);

    attrs=force_attrs|(~(ignored_changed_attrs)&changed_attrs);

    for (j=0; j < length; ++j) {

        if (details_attributes[j]&attrs) {

            onumber=get_attribute_values(details_attributes[j], oline, &ovalue);

            nnumber=get_attribute_values(details_attributes[j], nline, &nvalue);

            i = 0;

            while (i

                olen = i

                nlen = i

                k = 0;

                while (olen-p*k >= 0 || nlen-p*k >= 0) {

                    c = k*(p-1);

                    if (!onumber) {

                        error(2," %s%-9s%c %-*c  %.*s\n", width_details%2?"":" ", i+k?"":details_string[j], i+k?' ':':', p, ' ', p-1, nlen-c>0?&nvalue[i][c]:"");

                    } else if (!nnumber) {

                        error(2," %s%-9s%c %.*s\n", width_details%2?"":" ", i+k?"":details_string[j], i+k?' ':':', p-1, olen-c>0?&ovalue[i][c]:"");

                    } else {

                        error(2," %s%-9s%c %-*.*s| %.*s\n", width_details%2?"":" ", i+k?"":details_string[j], i+k?' ':':', p, p-1, olen-c>0?&ovalue[i][c]:"", p-1, nlen-c>0?&nvalue[i][c]:"");

                    }

                    k++;

                }

                ++i;

            }

            for(i=0; i < onumber; ++i) { free(ovalue[i]); ovalue[i]=NULL; } free(ovalue); ovalue=NULL;

            for(i=0; i < nnumber; ++i) { free(nvalue[i]); nvalue[i]=NULL; } free(nvalue); nvalue=NULL;

        }

    }

}

static void print_dbline_attributes_syslog(db_line* oline, db_line* nline, DB_ATTR_TYPE

        changed_attrs, DB_ATTR_TYPE force_attrs) {

    char **ovalue, **nvalue;

    int onumber, nnumber, i, j;

    int length = sizeof(details_attributes)/sizeof(DB_ATTR_TYPE);

    DB_ATTR_TYPE attrs;

    char *file_type = get_file_type_string((nline==NULL?oline:nline)->perm);

    if (file_type) {

        error(0,"%s=", file_type);

    }

    error(0,"%s", (nline==NULL?oline:nline)->filename);

    attrs=force_attrs|(~(ignored_changed_attrs)&changed_attrs);

    for (j=0; j < length; ++j) {

        if (details_attributes[j]&attrs) {

            onumber=get_attribute_values(details_attributes[j], oline, &ovalue);

            nnumber=get_attribute_values(details_attributes[j], nline, &nvalue);

            if (details_attributes[j] == DB_ACL || details_attributes[j] == DB_XATTRS) {

                error(0, ";%s_old=|", details_string[j]);

                for (i = 0 ; i < onumber ; i++) {

                    error(0, "%s|", ovalue[i]);

                }

                error(0, ";%s_new=|", details_string[j]);

                for (i = 0 ; i < nnumber ; i++) {

                    error(0, "%s|", nvalue[i]);

                }

            } else {

                error(0, ";%s_old=%s;%s_new=%s", details_string[j], *ovalue, details_string[j], *nvalue);

            }

            for(i=0; i < onumber; ++i) { free(ovalue[i]); ovalue[i]=NULL; } free(ovalue); ovalue=NULL;

            for(i=0; i < nnumber; ++i) { free(nvalue[i]); nvalue[i]=NULL; } free(nvalue); nvalue=NULL;

        }

    }

    error(0, "\n");

}

static void print_attributes_added_node(db_line* line) {

    print_dbline_attributes(NULL, line, 0, line->attr);

}

static void print_attributes_removed_node(db_line* line) {

    print_dbline_attributes(line, NULL, 0, line->attr);

}

static void print_attributes_added_node_syslog(db_line* line) {

    char *file_type = get_file_type_string(line->perm);

    if (file_type) {

        error(0,"%s=", file_type);

    }

    error(0,"%s; added\n", line->filename);

}

static void print_attributes_removed_node_syslog(db_line* line) {

    char *file_type = get_file_type_string(line->perm);

    if (file_type) {

        error(0,"%s=", file_type);

    }

    error(0,"%s; removed\n", line->filename);

}

static void terse_report(seltree* node) {

    list* r=NULL;

    if ((node->checked&(DB_OLD|DB_NEW)) != 0) {

        ntotal += ((node->checked&DB_NEW) != 0);

        if (!(node->checked&DB_OLD)){

            /* File is in new db but not old. (ADDED) */

            /* unless it was moved in */

            if (!((node->checked&NODE_ALLOW_NEW)||(node->checked&NODE_MOVED_IN))) {

                nadd++;

                node->checked|=NODE_ADDED;

            }

        } else if (!(node->checked&DB_NEW)){

            /* File is in old db but not new. (REMOVED) */

            /* unless it was moved out */

            if (!((node->checked&NODE_ALLOW_RM)||(node->checked&NODE_MOVED_OUT))) {

                nrem++;

                node->checked|=NODE_REMOVED;

            }

        } else if ((node->old_data!=NULL)&&(node->new_data!=NULL)){

            /* File is in both db's and the data is still there. (CHANGED) */

            if (!(node->checked&(NODE_MOVED_IN|NODE_MOVED_OUT))){

                nchg++;

                node->checked|=NODE_CHANGED;

            }else if (!((node->checked&NODE_ALLOW_NEW)||(node->checked&NODE_MOVED_IN))) {

                nadd++;

                node->checked|=NODE_ADDED;

            }else if (!((node->checked&NODE_ALLOW_RM)||(node->checked&NODE_MOVED_OUT))) {

                nrem++;

                node->checked|=NODE_REMOVED;

            }

        }

    }

    for (r=node->childs;r;r=r->next) {

        terse_report((seltree*)r->data);

    }

}

static void print_report_list(seltree* node, const int node_status) {

    list* r=NULL;

    if (node->checked&node_status) {

        print_line(node);

    }

    for(r=node->childs;r;r=r->next){

        print_report_list((seltree*)r->data, node_status);

    }

}

static void print_report_details(seltree* node) {

    list* r=NULL;

    if (conf->verbose_level>=5) {

        if (node->checked&NODE_CHANGED) {

            print_dbline_attributes(node->old_data, node->new_data, node->changed_attrs, (conf->verbose_level>=6?(

                ((node->old_data)->attr&~((node->new_data)->attr)&~(ignored_removed_attrs))|(~((node->old_data)->attr)&(node->new_data)->attr&~(ignored_added_attrs))

                            ):0)|forced_attrs);

        } else if ((conf->verbose_level>=7)) {

            if (node->checked&NODE_ADDED) { print_attributes_added_node(node->new_data); }

            if (node->checked&NODE_REMOVED) { print_attributes_removed_node(node->old_data); }

        }

    }

    for(r=node->childs;r;r=r->next){

        print_report_details((seltree*)r->data);

    }

}

static void print_syslog_format(seltree* node) {

    list* r=NULL;

    if (node->checked&NODE_CHANGED) {

        print_dbline_attributes_syslog(node->old_data, node->new_data, node->changed_attrs, forced_attrs);

    }

    if (node->checked&NODE_ADDED) {

        print_attributes_added_node_syslog(node->new_data);

    }

    if (node->checked&NODE_REMOVED) {

        print_attributes_removed_node_syslog(node->old_data); 

    }

    for(r=node->childs;r;r=r->next){

        print_syslog_format((seltree*)r->data);

    }

}

static void print_report_header() {

    char *time;

    int first = 1;

    time = malloc(time_string_len * sizeof (char));

    strftime(time, time_string_len, time_format, localtime(&(conf->start_time)));

    error(2,_("Start timestamp: %s (AIDE " AIDEVERSION ")\n"), time);

    free(time); time=NULL;

    error(0,_("AIDE"));

    if(conf->action&(DO_COMPARE|DO_DIFF)) {

        error(0,_(" found %sdifferences between %s%s!!\n"), (nadd||nrem||nchg)?"":"NO ", conf->action&DO_COMPARE?_("database and filesystem"):_("the two databases"), (nadd||nrem||nchg)?"":_(". Looks okay"));

        if(conf->action&(DO_INIT)) {

            error(0,_("New AIDE database written to %s\n"),conf->db_out_url->value);

        }

    } else {

        error(0,_(" initialized database at %s\n"),conf->db_out_url->value);

    }

    if(conf->config_version)

        error(2,_("Config version used: %s\n"),conf->config_version);

    if (conf->limit != NULL) {

        error (2,_("Limit: %s"), conf->limit);

        first = 0;

    }

    if (conf->action&(DO_INIT|DO_COMPARE) && conf->root_prefix_length > 0) {

        if (first) { first=0; }

        else { error (2," | "); }

        error (2,_("Root prefix: %s"),conf->root_prefix);

    }

    if (conf->verbose_level != 5) {

        if (first) { first=0; }

        else { error (2," | "); }

        error (2,_("Verbose level: %d"), conf->verbose_level);

    }

    if (!first) { error (2,"\n"); }

    if (ignored_added_attrs) {

        error (2,_("Ignored added attributes: %s\n"),report_attrs(ignored_added_attrs));

    }

    if (ignored_removed_attrs) {

        error (2,_("Ignored removed attributes: %s\n"),report_attrs(ignored_removed_attrs));

    }

    if (ignored_changed_attrs) {

        error (2,_("Ignored changed attributes: %s\n"),report_attrs(ignored_changed_attrs));

    }

    if (forced_attrs) {

        error (2,_("Forced attributes: %s\n"),report_attrs(forced_attrs));

    }

#ifdef WITH_E2FSATTRS

    if (conf->report_ignore_e2fsattrs) {

        error (2,_("Ignored e2fs attributes: %s\n"), e2fsattrs2string(conf->report_ignore_e2fsattrs, 1) );

    }

#endif

    if(conf->action&(DO_COMPARE|DO_DIFF) && (nadd||nrem||nchg)) {

        error(0,_("\nSummary:\n  Total number of entries:\t%li\n  Added entries:\t\t%li\n"

                    "  Removed entries:\t\t%li\n  Changed entries:\t\t%li"), ntotal, nadd, nrem, nchg);

    } else {

        error(0,_("\nNumber of entries:\t%li"), ntotal);

    }

}

static void print_report_databases() {

    if (conf->verbose_level>=2 && (conf->line_db_in || conf->line_db_out)) {

        error(2,(char*)report_top_format,_("The attributes of the (uncompressed) database(s)"));

        if (conf->line_db_in) {

            print_attributes_removed_node(conf->line_db_in);

        }

        if (conf->line_db_out) {

            print_attributes_removed_node(conf->line_db_out);

        }

    }

}

static void print_report_footer()

{

  char *time = malloc(time_string_len * sizeof (char));

  int run_time = (int) difftime(conf->end_time, conf->start_time);

  strftime(time, time_string_len, time_format, localtime(&(conf->end_time)));

  error(2,_("\n\nEnd timestamp: %s (run time: %dm %ds)\n"), time, run_time/60, run_time%60);

  free(time); time=NULL;

}

#ifdef WITH_AUDIT

  /* Something changed, send audit anomaly message */

void send_audit_report()

{

  if(nadd!=0||nrem!=0||nchg!=0){

    int fd=audit_open();

    if (fd>=0){

       char msg[64];

       snprintf(msg, sizeof(msg), "added=%ld removed=%ld changed=%ld", 

                nadd, nrem, nchg);

       if (audit_log_user_message(fd, AUDIT_ANOM_RBAC_INTEGRITY_FAIL,

                                  msg, NULL, NULL, NULL, 0)<=0)

#ifdef HAVE_SYSLOG

          syslog(LOG_ERR, "Failed sending audit message:%s", msg);

#else

          ;

#endif

       close(fd);

    }

  }

}

#endif /* WITH_AUDIT */

int gen_report(seltree* node) {

    forced_attrs = get_special_report_group("report_force_attrs");

    ignored_added_attrs = get_special_report_group("report_ignore_added_attrs");

    ignored_removed_attrs = get_special_report_group("report_ignore_removed_attrs");

    ignored_changed_attrs = get_special_report_group("report_ignore_changed_attrs");

    terse_report(node);

#ifdef WITH_AUDIT

    send_audit_report();

#endif

    if ((nadd|nrem|nchg) > 0 || conf->report_quiet == 0) {

        if (!conf->syslog_format) {

            print_report_header();

        }

        if(conf->action&(DO_COMPARE|DO_DIFF) || (conf->action&DO_INIT && conf->report_detailed_init) ) {

            if (!conf->syslog_format && conf->grouped) {

                if (nadd) {

                    error(2,(char*)report_top_format,_("Added entries"));

                    print_report_list(node, NODE_ADDED);

                }

                if (nrem) {

                    error(2,(char*)report_top_format,_("Removed entries"));

                    print_report_list(node, NODE_REMOVED);

                }

                if (nchg) {

                    error(2,(char*)report_top_format,_("Changed entries"));

                    print_report_list(node, NODE_CHANGED);

                }