source: freewrt/package/osiris/patches/mod_nvram.patch@ 9df7618

src/osirisd/modules/mod_nvram/Makefile

@@ +1 @@
+
+include ../Makefile
+
+SRCS=mod_nvram.c
+OBJS=$(SRCS:.c=.o)
+
+module: ${SRCS} ${OBJS}
+
+INCS=-I../.. -I../../../libosiris -I../../../libfileapi -I../../../..
+
+# meta-rule for compiling any "C" source file.
+$(OBJS): $(SRCS)
+        $(CC) $(DEFS) $(DEFAULT_INCLUDES) ${INCLUDES} ${INCS} $(AM_CPPFLAGS) \
+        $(CPPFLAGS) $(AM_CFLAGS)  $(CFLAGS) -c $(SRCS)
+        cp $@ ..
+

src/osirisd/modules/mod_nvram/README

@@ +1 @@
+
+Module: mod_nvram
+Author: Brian Wotring (brian@shmoo.com)
+
+
+
+DESCRIPTION:
+
+The mod_nvram module reads the key=value pairs stored in nvram.  This
+is primarily for Linksys routers, but could be modified to run on
+other systems if necessary.  On the routers like the WRT54G, the 
+nvram settings hold sensitive information that needs to be monitored.
+The format for the record structure is as follows:
+
+    name:value
+
+USE:
+
+To use this module, all  that is needed is to include it in the System
+block of a scan configuration, e.g.:
+
+    <System>
+    ...
+    Include mod_nvram
+    ...
+    </System>
+
+
+PARAMETERS:
+
+There are no parameters for this module.
+
+PLATFORMS:
+
+Currently, only for the Linksys WRT54G and WRT54GS devices.    
+
+NOTES:
+
+
+

src/osirisd/modules/mod_nvram/mod_nvram.c

@@ +1 @@
+
+/******************************************************************************
+**
+**  This program is free software; you can redistribute it and/or
+**  modify it, however, you cannot sell it.
+**
+**  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.
+**
+**  You should have received a copy of the license attached to the
+**  use of this software.  If not, visit www.shmoo.com/osiris for
+**  details.
+**
+******************************************************************************/
+
+/*****************************************************************************
+**
+**  File:    mod_users.c
+**  Date:    January 1, 2004
+**
+**  Author:  Brian Wotring
+**  Purpose: platform specific methods for reading user file information.
+**
+******************************************************************************/
+
+#include "libosiris.h"
+#include "libfileapi.h"
+#include "rootpriv.h"
+#include "common.h"
+#include "version.h"
+
+#include "scanner.h"
+#include "logging.h"
+
+
+#define NVRAM_PATH "/usr/sbin/nvram"
+#define NVRAM_ARG "show"
+
+static const char *MODULE_NAME = "mod_nvram";
+
+
+void mod_nvram( SCANNER *scanner )
+{
+    int pid;
+    int pc[2];
+    int cp[2];
+    char temp_line[4096];
+    FILE *file;
+    SCAN_RECORD_TEXT_1 record;
+
+    if( pipe(pc) < 0)
+    {
+        log_error( "mod_nvram: error creating pipe!" );
+        return;
+    }
+
+    if( pipe(cp) < 0)
+    {
+        log_error( "mod_nvram: error creating pipe!" );
+        return;
+    }
+
+    /* Create a child to run nvram command. */
+
+    switch( pid = fork() )
+    {
+        case -1:
+            log_error( "nvram: fork error!" );
+            return;
+
+        case 0:
+
+            /* child */
+
+            close(1);    
+            dup( cp[1]); 
+            close(0); 
+            close( pc[1]);
+            close( cp[0]);
+            execl( NVRAM_PATH, NVRAM_PATH, NVRAM_ARG, NULL );
+            exit(0);
+
+        default:
+
+            /* parent */
+
+            close(pc[1]);
+            close(cp[1]);
+
+            file = fdopen( cp[0], "r" );
+
+            for(;;)
+            {
+                char *line;
+                char *key_end;
+
+                line = fgets( temp_line, sizeof( temp_line ), file );
+
+                if( line == NULL)
+                {
+                    break;
+                }
+
+                line = trim_white_space( line );
+
+                /* skip commented and empty lines. */
+
+                if( ( line == NULL ) || ( line[0] == '#' ) )
+                {
+                    continue;
+                }
+
+                /* locate the username, this is the first item in the colon list. */
+
+                if( ( key_end = strchr( line, '=' ) ) == NULL )
+                {
+                    continue;
+                }
+
+                initialize_scan_record( (SCAN_RECORD *)&record,
+                                         SCAN_RECORD_TYPE_TEXT_1 );
+
+                osi_strlcpy( record.module_name, MODULE_NAME,
+                             sizeof( record.module_name ) );
+
+                /* user the key as a key/path for this record. */
+
+                (*key_end) = '\0';
+                key_end++;
+                osi_strlcpy( record.name, "nvram:", sizeof( record.name ) );
+                osi_strlcat( record.name, line, sizeof( record.name ) );
+
+                /* now copy in the value into the data portion. */
+                /* and send this record on its way.             */
+
+                osi_strlcpy( record.data, key_end, sizeof( record.data ) );
+                send_scan_data( scanner, (SCAN_RECORD *)&record );
+            }
+    }
+}
+