Initial commit
Nothing's working yet, only some supporting code has been put in place.
This commit is contained in:
commit
b418bfe22c
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@ -0,0 +1,8 @@
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# Build files
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/ponymap
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||||||
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# Qt Creator files
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||||||
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/ponymap.config
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||||||
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/ponymap.files
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||||||
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/ponymap.creator*
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/ponymap.includes
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@ -0,0 +1,21 @@
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SHELL = /bin/sh
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CC = clang
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# -Wunused-function is pretty annoying here, as everything is static
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||||||
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CFLAGS = -std=c99 -Wall -Wextra -Wno-unused-function -ggdb
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# -lpthread is only there for debugging (gdb & errno)
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||||||
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# -lrt is only for glibc < 2.17
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||||||
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LDFLAGS = `pkg-config --libs libssl` -lpthread -lrt -ldl
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||||||
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||||||
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.PHONY: all clean
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.SUFFIXES:
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targets = ponymap
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||||||
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all: $(targets)
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||||||
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clean:
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rm -f $(targets)
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ponymap: ponymap.c utils.c siphash.c
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$(CC) ponymap.c siphash.c -o $@ $(CFLAGS) $(LDFLAGS)
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ponymap
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=======
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||||||
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`ponymap' is an experimental network scanner, not even in the alpha stage yet.
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||||||
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|
||||||
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The ultimate purpose of this scanner is bruteforcing hosts and ports in search
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||||||
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of running services. Replacing nmap is not the goal.
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||||||
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||||||
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Building and Running
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||||||
|
--------------------
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|
Build dependencies: openssl, clang, pkg-config, GNU make, awk, sh
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|
||||||
|
If you don't have Clang, you can edit the Makefile to use GCC or TCC, they work
|
||||||
|
just as good. But there's no CMake support yet, so I force it in the Makefile.
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||||||
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$ git clone https://github.com/pjanouch/ponymap.git
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$ make
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|
||||||
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That is all, no installation is required, or supported for that matter.
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||||||
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First you might want to generate a configuration file:
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||||||
|
$ ./ponymap --write-default-config
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||||||
|
|
||||||
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After making any necessary edits to the file (there are comments to aid you in
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|
doing that), simply run the appropriate program with no arguments to retrieve
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a usage text.
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||||||
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|
||||||
|
License
|
||||||
|
-------
|
||||||
|
`ponymap' is written by Přemysl Janouch <p.janouch@gmail.com>.
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||||||
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|
||||||
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You may use the software under the terms of the ISC license, the text of which
|
||||||
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is included within the package, or, at your option, you may relicense the work
|
||||||
|
under the MIT or the Modified BSD License, as listed at the following site:
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||||||
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|
||||||
|
http://www.gnu.org/licenses/license-list.html
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||||||
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@ -0,0 +1,81 @@
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/*
|
||||||
|
* plugin-api.h: plugin API for ponymap
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||||||
|
*
|
||||||
|
* Copyright (c) 2014, Přemysl Janouch <p.janouch@gmail.com>
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* Permission to use, copy, modify, and/or distribute this software for any
|
||||||
|
* purpose with or without fee is hereby granted, provided that the above
|
||||||
|
* copyright notice and this permission notice appear in all copies.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||||
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||||
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
|
||||||
|
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||||
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
|
||||||
|
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
|
||||||
|
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
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// This API is meant to be as simplistic as is realistically possible.
|
||||||
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|
||||||
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/// The version of the API, and by extension, of all the following structs
|
||||||
|
#define API_VERSION 1
|
||||||
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|
||||||
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///< Opaque object with data relating to a service scan
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struct unit;
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||||||
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|
||||||
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enum
|
||||||
|
{
|
||||||
|
SERVICE_SUPPORTS_TLS = (1 << 0) ///< Plain TLS can be used
|
||||||
|
};
|
||||||
|
|
||||||
|
struct service
|
||||||
|
{
|
||||||
|
const char *name; ///< Name of the service
|
||||||
|
int flags; ///< Service flags
|
||||||
|
|
||||||
|
/// Initialize a scan, returning a handle to it
|
||||||
|
void *(*scan_init) (struct unit *u);
|
||||||
|
|
||||||
|
/// We have received some data from the peer
|
||||||
|
void (*on_data) (void *handle, struct unit *u, struct str *data);
|
||||||
|
|
||||||
|
/// Server has closed the connection
|
||||||
|
void (*on_eof) (void *handle, struct unit *u);
|
||||||
|
|
||||||
|
/// Network or other error has occured
|
||||||
|
void (*on_error) (void *handle, struct unit *u);
|
||||||
|
|
||||||
|
/// The scan has been cancelled
|
||||||
|
void (*on_cancelled) (void *handle, struct unit *u);
|
||||||
|
};
|
||||||
|
|
||||||
|
struct plugin_api
|
||||||
|
{
|
||||||
|
/// Register the plugin for a service
|
||||||
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void (*register_service) (void *ctx, struct service *info);
|
||||||
|
|
||||||
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/// Send some data to the peer
|
||||||
|
ssize_t (*unit_write) (struct unit *u, const void *buf, size_t len);
|
||||||
|
|
||||||
|
/// Mark the scan as un/successful
|
||||||
|
void (*unit_set_success) (struct unit *u, bool success);
|
||||||
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|
||||||
|
/// Add some information resulting from the scan
|
||||||
|
void (*unit_add_info) (struct unit *u, const char *result);
|
||||||
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|
||||||
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/// Abort the scan, close the connection
|
||||||
|
void (*unit_abort) (struct unit *u);
|
||||||
|
};
|
||||||
|
|
||||||
|
struct plugin_info
|
||||||
|
{
|
||||||
|
/// Version of the API used by this plugin
|
||||||
|
int32_t api_version;
|
||||||
|
|
||||||
|
/// Let the plugin initialize itself and register any services.
|
||||||
|
/// The context needs to be passed to the relevant API functions.
|
||||||
|
bool (*initialize) (void *ctx, struct plugin_api *api);
|
||||||
|
};
|
||||||
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|
@ -0,0 +1,24 @@
|
||||||
|
/*
|
||||||
|
* plugin-http.c: HTTP service detection plugin
|
||||||
|
*
|
||||||
|
* Copyright (c) 2014, Přemysl Janouch <p.janouch@gmail.com>
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* Permission to use, copy, modify, and/or distribute this software for any
|
||||||
|
* purpose with or without fee is hereby granted, provided that the above
|
||||||
|
* copyright notice and this permission notice appear in all copies.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||||
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||||
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
|
||||||
|
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||||
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
|
||||||
|
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
|
||||||
|
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "utils.c"
|
||||||
|
#include "plugin-api.h"
|
||||||
|
|
||||||
|
// TODO
|
||||||
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|
@ -0,0 +1,24 @@
|
||||||
|
/*
|
||||||
|
* plugin-http.c: IRC service detection plugin
|
||||||
|
*
|
||||||
|
* Copyright (c) 2014, Přemysl Janouch <p.janouch@gmail.com>
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* Permission to use, copy, modify, and/or distribute this software for any
|
||||||
|
* purpose with or without fee is hereby granted, provided that the above
|
||||||
|
* copyright notice and this permission notice appear in all copies.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||||
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||||
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
|
||||||
|
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||||
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
|
||||||
|
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
|
||||||
|
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "utils.c"
|
||||||
|
#include "plugin-api.h"
|
||||||
|
|
||||||
|
// TODO
|
||||||
|
|
@ -0,0 +1,875 @@
|
||||||
|
/*
|
||||||
|
* ponymap.c: the experimental network scanner
|
||||||
|
*
|
||||||
|
* Copyright (c) 2014, Přemysl Janouch <p.janouch@gmail.com>
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* Permission to use, copy, modify, and/or distribute this software for any
|
||||||
|
* purpose with or without fee is hereby granted, provided that the above
|
||||||
|
* copyright notice and this permission notice appear in all copies.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||||
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||||
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
|
||||||
|
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||||
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
|
||||||
|
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
|
||||||
|
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
#define PROGRAM_NAME "ponymap"
|
||||||
|
#define PROGRAM_VERSION "alpha"
|
||||||
|
|
||||||
|
#include "utils.c"
|
||||||
|
#include "plugin-api.h"
|
||||||
|
#include <dirent.h>
|
||||||
|
#include <dlfcn.h>
|
||||||
|
|
||||||
|
// --- Configuration (application-specific) ------------------------------------
|
||||||
|
|
||||||
|
static struct config_item g_config_table[] =
|
||||||
|
{
|
||||||
|
{ "plugin_dir", NULL, "Where to search for plugins" },
|
||||||
|
{ NULL, NULL, NULL }
|
||||||
|
};
|
||||||
|
|
||||||
|
// --- Application data --------------------------------------------------------
|
||||||
|
|
||||||
|
// The scan is a cartesian product of: [IP ranges] -> [ports] -> [services]
|
||||||
|
|
||||||
|
struct port_range
|
||||||
|
{
|
||||||
|
LIST_HEADER (port_range)
|
||||||
|
uint16_t start; ///< The beginning of the range
|
||||||
|
uint16_t end; ///< The end of the range
|
||||||
|
};
|
||||||
|
|
||||||
|
static void
|
||||||
|
port_range_delete (struct port_range *self)
|
||||||
|
{
|
||||||
|
free (self);
|
||||||
|
}
|
||||||
|
|
||||||
|
struct ip_range
|
||||||
|
{
|
||||||
|
LIST_HEADER (ip_range)
|
||||||
|
uint32_t start; ///< The beginning of the range
|
||||||
|
uint32_t end; ///< The end of the range
|
||||||
|
|
||||||
|
char *original_name; ///< The name the user typed in
|
||||||
|
uint32_t original_address; ///< The address of `original_name'
|
||||||
|
};
|
||||||
|
|
||||||
|
static void
|
||||||
|
ip_range_delete (struct ip_range *self)
|
||||||
|
{
|
||||||
|
free (self->original_name);
|
||||||
|
free (self);
|
||||||
|
}
|
||||||
|
|
||||||
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
||||||
|
|
||||||
|
struct target
|
||||||
|
{
|
||||||
|
LIST_HEADER (target)
|
||||||
|
size_t ref_count; ///< Reference count
|
||||||
|
|
||||||
|
uint32_t ip; ///< IP address
|
||||||
|
char *hostname; ///< Hostname
|
||||||
|
|
||||||
|
// TODO: some fields with results
|
||||||
|
// XXX: what is the relation to `struct unit'?
|
||||||
|
};
|
||||||
|
|
||||||
|
// XXX: how is this supposed to be working?
|
||||||
|
struct transport
|
||||||
|
{
|
||||||
|
LIST_HEADER (transport)
|
||||||
|
|
||||||
|
const char *name; ///< Name of the transport
|
||||||
|
|
||||||
|
ssize_t (*read) (struct unit *u, void *buf, size_t len);
|
||||||
|
ssize_t (*write) (struct unit *u, const void *buf, size_t len);
|
||||||
|
};
|
||||||
|
|
||||||
|
struct unit
|
||||||
|
{
|
||||||
|
struct target *target; ///< Target context
|
||||||
|
struct transport *transport; ///< Transport methods
|
||||||
|
|
||||||
|
int socket_fd; ///< The TCP socket
|
||||||
|
struct str read_buffer; ///< Unprocessed input
|
||||||
|
struct str write_buffer; ///< Output yet to be sent out
|
||||||
|
|
||||||
|
SSL *ssl; ///< SSL connection
|
||||||
|
bool ssl_rx_want_tx; ///< SSL_read() wants to write
|
||||||
|
bool ssl_tx_want_rx; ///< SSL_write() wants to read
|
||||||
|
|
||||||
|
bool success; ///< Service has been found
|
||||||
|
struct str_vector info; ///< Info resulting from the scan
|
||||||
|
};
|
||||||
|
|
||||||
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
||||||
|
|
||||||
|
struct job_generator
|
||||||
|
{
|
||||||
|
struct ip_range *ip_range_iter; ///< Current IP range
|
||||||
|
uint32_t ip_iter; ///< IP iterator within the range
|
||||||
|
struct target *current_target; ///< Current target
|
||||||
|
|
||||||
|
struct port_range *port_range_iter; ///< Current port range
|
||||||
|
uint16_t port_iter; ///< Port iterator within the range
|
||||||
|
|
||||||
|
struct str_map_iter svc_iter; ///< Service iterator
|
||||||
|
struct service *svc; ///< Current service iterator value
|
||||||
|
|
||||||
|
struct transport *transport_iter; ///< Transport iterator
|
||||||
|
};
|
||||||
|
|
||||||
|
struct app_context
|
||||||
|
{
|
||||||
|
struct str_map config; ///< User configuration
|
||||||
|
|
||||||
|
struct str_map svc_list; ///< List of services to scan for
|
||||||
|
struct port_range *port_list; ///< List of ports to scan on
|
||||||
|
struct ip_range *ip_list; ///< List of IP's to scan
|
||||||
|
|
||||||
|
struct str_map services; ///< All registered services
|
||||||
|
struct transport *transports; ///< All available transports
|
||||||
|
struct job_generator generator; ///< Job generator
|
||||||
|
#if 0
|
||||||
|
struct target *running_list; ///< List of currently scanned targets
|
||||||
|
#endif
|
||||||
|
struct poller poller; ///< Manages polled descriptors
|
||||||
|
bool quitting; ///< User requested quitting
|
||||||
|
bool polling; ///< The event loop is running
|
||||||
|
};
|
||||||
|
|
||||||
|
static void
|
||||||
|
app_context_init (struct app_context *self)
|
||||||
|
{
|
||||||
|
str_map_init (&self->config);
|
||||||
|
self->config.free = free;
|
||||||
|
load_config_defaults (&self->config, g_config_table);
|
||||||
|
|
||||||
|
str_map_init (&self->svc_list);
|
||||||
|
self->port_list = NULL;
|
||||||
|
self->ip_list = NULL;
|
||||||
|
|
||||||
|
str_map_init (&self->services);
|
||||||
|
self->transports = NULL;
|
||||||
|
// Ignoring the generator so far
|
||||||
|
|
||||||
|
poller_init (&self->poller);
|
||||||
|
self->quitting = false;
|
||||||
|
self->polling = false;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
app_context_free (struct app_context *self)
|
||||||
|
{
|
||||||
|
str_map_free (&self->config);
|
||||||
|
str_map_free (&self->svc_list);
|
||||||
|
poller_free (&self->poller);
|
||||||
|
|
||||||
|
for (struct ip_range *iter = self->ip_list; iter; )
|
||||||
|
{
|
||||||
|
struct ip_range *next = iter->next;
|
||||||
|
ip_range_delete (iter);
|
||||||
|
iter = next;
|
||||||
|
}
|
||||||
|
|
||||||
|
for (struct port_range *iter = self->port_list; iter; )
|
||||||
|
{
|
||||||
|
struct port_range *next = iter->next;
|
||||||
|
port_range_delete (iter);
|
||||||
|
iter = next;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
try_finish_quit (struct app_context *ctx)
|
||||||
|
{
|
||||||
|
if (ctx->quitting)
|
||||||
|
ctx->polling = false;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
initiate_quit (struct app_context *ctx)
|
||||||
|
{
|
||||||
|
ctx->quitting = true;
|
||||||
|
try_finish_quit (ctx);
|
||||||
|
}
|
||||||
|
|
||||||
|
// --- Signals -----------------------------------------------------------------
|
||||||
|
|
||||||
|
static int g_signal_pipe[2]; ///< A pipe used to signal... signals
|
||||||
|
|
||||||
|
/// Program termination has been requested by a signal
|
||||||
|
static volatile sig_atomic_t g_termination_requested;
|
||||||
|
|
||||||
|
static void
|
||||||
|
sigterm_handler (int signum)
|
||||||
|
{
|
||||||
|
(void) signum;
|
||||||
|
|
||||||
|
g_termination_requested = true;
|
||||||
|
|
||||||
|
int original_errno = errno;
|
||||||
|
if (write (g_signal_pipe[1], "t", 1) == -1)
|
||||||
|
soft_assert (errno == EAGAIN);
|
||||||
|
errno = original_errno;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
setup_signal_handlers (void)
|
||||||
|
{
|
||||||
|
if (pipe (g_signal_pipe) == -1)
|
||||||
|
exit_fatal ("%s: %s", "pipe", strerror (errno));
|
||||||
|
|
||||||
|
set_cloexec (g_signal_pipe[0]);
|
||||||
|
set_cloexec (g_signal_pipe[1]);
|
||||||
|
|
||||||
|
// So that the pipe cannot overflow; it would make write() block within
|
||||||
|
// the signal handler, which is something we really don't want to happen.
|
||||||
|
// The same holds true for read().
|
||||||
|
set_blocking (g_signal_pipe[0], false);
|
||||||
|
set_blocking (g_signal_pipe[1], false);
|
||||||
|
|
||||||
|
signal (SIGPIPE, SIG_IGN);
|
||||||
|
|
||||||
|
struct sigaction sa;
|
||||||
|
sa.sa_flags = SA_RESTART;
|
||||||
|
sigemptyset (&sa.sa_mask);
|
||||||
|
sa.sa_handler = sigterm_handler;
|
||||||
|
if (sigaction (SIGINT, &sa, NULL) == -1
|
||||||
|
|| sigaction (SIGTERM, &sa, NULL) == -1)
|
||||||
|
exit_fatal ("sigaction: %s", strerror (errno));
|
||||||
|
}
|
||||||
|
|
||||||
|
// --- Plugins -----------------------------------------------------------------
|
||||||
|
|
||||||
|
static void
|
||||||
|
plugin_api_register_service (void *app_context, struct service *info)
|
||||||
|
{
|
||||||
|
struct app_context *ctx = app_context;
|
||||||
|
if (str_map_find (&ctx->services, info->name))
|
||||||
|
print_error ("attempt to re-register duplicate service `%s'",
|
||||||
|
info->name);
|
||||||
|
else
|
||||||
|
str_map_set (&ctx->services, info->name, info);
|
||||||
|
}
|
||||||
|
|
||||||
|
static ssize_t
|
||||||
|
plugin_api_unit_write (struct unit *u, const void *buf, size_t len)
|
||||||
|
{
|
||||||
|
// TODO
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
plugin_api_unit_set_success (struct unit *u, bool success)
|
||||||
|
{
|
||||||
|
u->success = success;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
plugin_api_unit_add_info (struct unit *u, const char *result)
|
||||||
|
{
|
||||||
|
str_vector_add (&u->info, result);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
plugin_api_unit_abort (struct unit *u)
|
||||||
|
{
|
||||||
|
// TODO
|
||||||
|
}
|
||||||
|
|
||||||
|
static struct plugin_api g_plugin_vtable =
|
||||||
|
{
|
||||||
|
.register_service = plugin_api_register_service,
|
||||||
|
.unit_write = plugin_api_unit_write,
|
||||||
|
.unit_set_success = plugin_api_unit_set_success,
|
||||||
|
.unit_add_info = plugin_api_unit_add_info,
|
||||||
|
.unit_abort = plugin_api_unit_abort
|
||||||
|
};
|
||||||
|
|
||||||
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
||||||
|
|
||||||
|
static bool
|
||||||
|
load_one_plugin (struct app_context *ctx, const char *name, const char *path)
|
||||||
|
{
|
||||||
|
void *table = dlopen (path, RTLD_LAZY | RTLD_LOCAL);
|
||||||
|
if (!table)
|
||||||
|
{
|
||||||
|
print_error ("could not load `%s': %s", name, dlerror ());
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
struct plugin_info *info = dlsym (table, "ponymap_plugin_info");
|
||||||
|
if (!info)
|
||||||
|
print_error ("could not load `%s': %s",
|
||||||
|
name, "cannot find plugin info");
|
||||||
|
else if (info->api_version != API_VERSION)
|
||||||
|
print_error ("could not load `%s': %s",
|
||||||
|
name, "cannot find plugin info");
|
||||||
|
else if (!info->initialize (ctx, &g_plugin_vtable))
|
||||||
|
print_error ("could not load `%s': %s",
|
||||||
|
name, "plugin initialization failed");
|
||||||
|
else
|
||||||
|
return true;
|
||||||
|
|
||||||
|
dlclose (table);
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
static bool
|
||||||
|
load_plugins (struct app_context *ctx)
|
||||||
|
{
|
||||||
|
const char *plugin_dir = str_map_find (&ctx->config, "plugin_dir");
|
||||||
|
if (!plugin_dir)
|
||||||
|
{
|
||||||
|
print_fatal ("no plugin directory defined");
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
DIR *dir = opendir (plugin_dir);
|
||||||
|
if (!dir)
|
||||||
|
{
|
||||||
|
print_fatal ("%s: %s",
|
||||||
|
"cannot open plugin directory", strerror (errno));
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
bool success = false;
|
||||||
|
struct dirent buf, *iter;
|
||||||
|
while (true)
|
||||||
|
{
|
||||||
|
if (readdir_r (dir, &buf, &iter))
|
||||||
|
{
|
||||||
|
print_fatal ("%s: %s", "readdir_r", strerror (errno));
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
if (!iter)
|
||||||
|
{
|
||||||
|
success = true;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
char *dot = strrchr (iter->d_name, '.');
|
||||||
|
if (dot && !strcmp (dot, ".so"))
|
||||||
|
continue;
|
||||||
|
|
||||||
|
char *path = xstrdup_printf ("%s/%s", plugin_dir, iter->d_name);
|
||||||
|
(void) load_one_plugin (ctx, iter->d_name, path);
|
||||||
|
free (path);
|
||||||
|
}
|
||||||
|
closedir (dir);
|
||||||
|
return success;
|
||||||
|
}
|
||||||
|
|
||||||
|
// --- Transports --------------------------------------------------------------
|
||||||
|
|
||||||
|
static ssize_t
|
||||||
|
transport_plain_read (struct unit *c, void *buf, size_t len)
|
||||||
|
{
|
||||||
|
}
|
||||||
|
|
||||||
|
static ssize_t
|
||||||
|
transport_plain_write (struct unit *c, const void *buf, size_t len)
|
||||||
|
{
|
||||||
|
}
|
||||||
|
|
||||||
|
static struct transport g_transport_plain =
|
||||||
|
{
|
||||||
|
.read = transport_plain_read,
|
||||||
|
.write = transport_plain_write
|
||||||
|
};
|
||||||
|
|
||||||
|
static ssize_t
|
||||||
|
transport_tls_read (struct unit *c, void *buf, size_t len)
|
||||||
|
{
|
||||||
|
}
|
||||||
|
|
||||||
|
static ssize_t
|
||||||
|
transport_tls_write (struct unit *c, const void *buf, size_t len)
|
||||||
|
{
|
||||||
|
}
|
||||||
|
|
||||||
|
static struct transport g_transport_tls =
|
||||||
|
{
|
||||||
|
.read = transport_tls_read,
|
||||||
|
.write = transport_tls_write
|
||||||
|
};
|
||||||
|
|
||||||
|
// --- Scanning ----------------------------------------------------------------
|
||||||
|
|
||||||
|
static void
|
||||||
|
target_unref (struct target *self)
|
||||||
|
{
|
||||||
|
if (!self || --self->ref_count)
|
||||||
|
return;
|
||||||
|
|
||||||
|
free (self->hostname);
|
||||||
|
free (self);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
job_generator_new_target (struct app_context *ctx)
|
||||||
|
{
|
||||||
|
struct job_generator *g = &ctx->generator;
|
||||||
|
|
||||||
|
struct target *target = xcalloc (1, sizeof *target);
|
||||||
|
target_unref (g->current_target);
|
||||||
|
g->current_target = target;
|
||||||
|
|
||||||
|
target->ref_count = 1;
|
||||||
|
target->ip = g->ip_iter;
|
||||||
|
if (g->ip_iter == g->ip_range_iter->original_address)
|
||||||
|
target->hostname = xstrdup (g->ip_range_iter->original_name);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
job_generator_init (struct app_context *ctx)
|
||||||
|
{
|
||||||
|
struct job_generator *g = &ctx->generator;
|
||||||
|
|
||||||
|
g->ip_range_iter = ctx->ip_list;
|
||||||
|
g->ip_iter = g->ip_range_iter->start;
|
||||||
|
g->current_target = NULL;
|
||||||
|
job_generator_new_target (ctx);
|
||||||
|
|
||||||
|
g->port_range_iter = ctx->port_list;
|
||||||
|
g->port_iter = g->port_range_iter->start;
|
||||||
|
|
||||||
|
str_map_iter_init (&g->svc_iter, &ctx->svc_list);
|
||||||
|
g->svc = str_map_iter_next (&g->svc_iter);
|
||||||
|
|
||||||
|
g->transport_iter = ctx->transports;
|
||||||
|
}
|
||||||
|
|
||||||
|
static bool
|
||||||
|
job_generator_run (struct app_context *ctx,
|
||||||
|
uint32_t ip, uint16_t port, struct service *svc, struct transport *trans)
|
||||||
|
{
|
||||||
|
struct job_generator *g = &ctx->generator;
|
||||||
|
|
||||||
|
// TODO: create a socket
|
||||||
|
// TODO: set it non-blocking
|
||||||
|
// TODO: connect()
|
||||||
|
// TODO: set a timer
|
||||||
|
}
|
||||||
|
|
||||||
|
static bool
|
||||||
|
job_generator_step (struct app_context *ctx)
|
||||||
|
{
|
||||||
|
struct job_generator *g = &ctx->generator;
|
||||||
|
|
||||||
|
// XXX: we're probably going to need a way to distinguish
|
||||||
|
// between "try again" and "stop trying".
|
||||||
|
if (!g->ip_range_iter)
|
||||||
|
return false;
|
||||||
|
if (!job_generator_run (ctx,
|
||||||
|
g->ip_iter, g->port_iter, g->svc, g->transport_iter))
|
||||||
|
return false;
|
||||||
|
|
||||||
|
// Try to find the next available transport
|
||||||
|
while (true)
|
||||||
|
{
|
||||||
|
if (!(g->transport_iter = g->transport_iter->next))
|
||||||
|
break;
|
||||||
|
if (g->transport_iter == &g_transport_tls
|
||||||
|
&& !(g->svc->flags & SERVICE_SUPPORTS_TLS))
|
||||||
|
continue;
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
g->transport_iter = ctx->transports;
|
||||||
|
|
||||||
|
// Try to find the next service to scan for
|
||||||
|
if ((g->svc = str_map_iter_next (&g->svc_iter)))
|
||||||
|
return true;
|
||||||
|
str_map_iter_init (&g->svc_iter, &ctx->svc_list);
|
||||||
|
g->svc = str_map_iter_next (&g->svc_iter);
|
||||||
|
|
||||||
|
// Try to find the next port to scan
|
||||||
|
if (g->port_iter != UINT16_MAX && g->port_iter < g->port_range_iter->end)
|
||||||
|
{
|
||||||
|
g->port_iter++;
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
g->port_range_iter = g->port_range_iter->next;
|
||||||
|
if (g->port_range_iter)
|
||||||
|
{
|
||||||
|
g->port_iter = g->port_range_iter->start;
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
g->port_range_iter = ctx->port_list;
|
||||||
|
g->port_iter = g->port_range_iter->start;
|
||||||
|
|
||||||
|
// Try to find the next IP to scan
|
||||||
|
if (g->ip_iter != UINT32_MAX && g->ip_iter < g->ip_range_iter->end)
|
||||||
|
{
|
||||||
|
g->ip_iter++;
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
g->ip_range_iter = g->ip_range_iter->next;
|
||||||
|
if (g->ip_range_iter)
|
||||||
|
{
|
||||||
|
g->ip_iter = g->ip_range_iter->start;
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
// No more jobs to be created
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
// --- Main program ------------------------------------------------------------
|
||||||
|
|
||||||
|
typedef bool (*list_foreach_fn) (void *, const char *);
|
||||||
|
|
||||||
|
static bool
|
||||||
|
list_foreach (const char *list, list_foreach_fn callback, void *user_data)
|
||||||
|
{
|
||||||
|
struct str_vector items;
|
||||||
|
str_vector_init (&items);
|
||||||
|
|
||||||
|
bool success = false;
|
||||||
|
split_str_ignore_empty (list, ',', &items);
|
||||||
|
for (size_t i = 0; i < items.len; i++)
|
||||||
|
if (!callback (user_data, strip_str_in_place (items.vector[i], " ")))
|
||||||
|
goto fail;
|
||||||
|
|
||||||
|
success = true;
|
||||||
|
fail:
|
||||||
|
str_vector_free (&items);
|
||||||
|
return success;
|
||||||
|
}
|
||||||
|
|
||||||
|
static bool
|
||||||
|
parse_port (const char *port, uint16_t *out)
|
||||||
|
{
|
||||||
|
unsigned long x;
|
||||||
|
struct servent *service;
|
||||||
|
|
||||||
|
if ((service = getservbyname (port, "tcp")))
|
||||||
|
*out = ntohs (service->s_port);
|
||||||
|
else if (xstrtoul (&x, port, 10) && x <= UINT16_MAX)
|
||||||
|
*out = x;
|
||||||
|
else
|
||||||
|
return false;
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
static bool
|
||||||
|
add_port_range (struct app_context *ctx, const char *range)
|
||||||
|
{
|
||||||
|
uint16_t start_port, end_port;
|
||||||
|
const char *hyphen = strchr (range, '-');
|
||||||
|
if (hyphen)
|
||||||
|
{
|
||||||
|
char start[hyphen - range + 1];
|
||||||
|
memcpy (start, range, sizeof range - 1);
|
||||||
|
start[sizeof start - 1] = '\0';
|
||||||
|
|
||||||
|
const char *end = hyphen + 1;
|
||||||
|
|
||||||
|
if (!parse_port (start, &start_port)
|
||||||
|
|| !parse_port (end, &end_port))
|
||||||
|
goto fail;
|
||||||
|
}
|
||||||
|
else if (!parse_port (range, &start_port))
|
||||||
|
goto fail;
|
||||||
|
else
|
||||||
|
end_port = start_port;
|
||||||
|
|
||||||
|
if (start_port > end_port)
|
||||||
|
goto fail;
|
||||||
|
|
||||||
|
struct port_range *pr = xcalloc (1, sizeof *pr);
|
||||||
|
pr->start = start_port;
|
||||||
|
pr->end = end_port;
|
||||||
|
LIST_PREPEND (ctx->port_list, pr);
|
||||||
|
return true;
|
||||||
|
|
||||||
|
fail:
|
||||||
|
print_error ("%s: `%s'", "invalid port range", range);
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
static bool
|
||||||
|
add_service (struct app_context *ctx, const char *name)
|
||||||
|
{
|
||||||
|
// To be resolved later
|
||||||
|
str_map_set (&ctx->svc_list, name, (void *) name);
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
static bool
|
||||||
|
add_target (struct app_context *ctx, const char *target)
|
||||||
|
{
|
||||||
|
char host[strlen (target) + 1];
|
||||||
|
strcpy (host, target);
|
||||||
|
|
||||||
|
unsigned long mask = 32;
|
||||||
|
char *slash = strchr (host, '/');
|
||||||
|
if (slash)
|
||||||
|
{
|
||||||
|
*slash++ = '\0';
|
||||||
|
if (!xstrtoul (&mask, slash, 10) || mask > 32)
|
||||||
|
{
|
||||||
|
print_error ("invalid network mask in `%s'", target);
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
struct addrinfo hints = { .ai_family = AF_INET };
|
||||||
|
struct addrinfo *result;
|
||||||
|
int err = getaddrinfo (target, NULL, &hints, &result);
|
||||||
|
if (err)
|
||||||
|
{
|
||||||
|
print_error ("cannot resolve `%s': %s", host, gai_strerror (err));
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
struct ip_range *range = xcalloc (1, sizeof *range);
|
||||||
|
uint32_t bitmask = ~(((uint64_t) 1 << (32 - mask)) - 1);
|
||||||
|
|
||||||
|
hard_assert (result->ai_family == AF_INET);
|
||||||
|
hard_assert (result->ai_addr->sa_family == AF_INET);
|
||||||
|
uint32_t addr = ntohl (((struct sockaddr_in *)
|
||||||
|
result->ai_addr)->sin_addr.s_addr);
|
||||||
|
range->start = addr & bitmask;
|
||||||
|
range->end = addr | bitmask;
|
||||||
|
freeaddrinfo (result);
|
||||||
|
|
||||||
|
range->original_name = xstrdup (host);
|
||||||
|
range->original_address = addr;
|
||||||
|
|
||||||
|
LIST_PREPEND (ctx->ip_list, range);
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
merge_port_ranges (struct app_context *ctx)
|
||||||
|
{
|
||||||
|
// Make sure that no port is scanned twice
|
||||||
|
struct port_range *i1, *i2, *i2_next;
|
||||||
|
for (i1 = ctx->port_list; i1; i1 = i1->next)
|
||||||
|
for (i2 = ctx->port_list; i2; i2 = i2_next)
|
||||||
|
{
|
||||||
|
i2_next = i2->next;
|
||||||
|
if (i1 == i2 || i1->end < i2->start || i2->end < i1->start)
|
||||||
|
continue;
|
||||||
|
|
||||||
|
i1->start = MIN (i1->start, i2->start);
|
||||||
|
i1->end = MAX (i1->end, i2->end);
|
||||||
|
LIST_UNLINK (ctx->port_list, i2);
|
||||||
|
free (i2);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
merge_ip_ranges (struct app_context *ctx)
|
||||||
|
{
|
||||||
|
// Make sure that no IP is scanned twice
|
||||||
|
struct ip_range *i1, *i2, *i2_next;
|
||||||
|
for (i1 = ctx->ip_list; i1; i1 = i1->next)
|
||||||
|
for (i2 = ctx->ip_list; i2; i2 = i2_next)
|
||||||
|
{
|
||||||
|
i2_next = i2->next;
|
||||||
|
if (i1 == i2 || i1->end < i2->start || i2->end < i1->start)
|
||||||
|
continue;
|
||||||
|
|
||||||
|
i1->start = MIN (i1->start, i2->start);
|
||||||
|
i1->end = MAX (i1->end, i2->end);
|
||||||
|
LIST_UNLINK (ctx->ip_list, i2);
|
||||||
|
free (i2);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static bool
|
||||||
|
resolve_service_names (struct app_context *ctx)
|
||||||
|
{
|
||||||
|
struct str_map_iter iter;
|
||||||
|
str_map_iter_init (&iter, &ctx->svc_list);
|
||||||
|
const char *name;
|
||||||
|
bool success = true;
|
||||||
|
while ((name = str_map_iter_next (&iter)))
|
||||||
|
{
|
||||||
|
struct service *service;
|
||||||
|
if ((service = str_map_find (&ctx->services, name)))
|
||||||
|
{
|
||||||
|
str_map_set (&ctx->svc_list, name, service);
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
print_error ("unknown service `%s'", name);
|
||||||
|
success = false;
|
||||||
|
}
|
||||||
|
return success;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
on_signal_pipe_readable (const struct pollfd *fd, struct app_context *ctx)
|
||||||
|
{
|
||||||
|
char *dummy;
|
||||||
|
(void) read (fd->fd, &dummy, 1);
|
||||||
|
|
||||||
|
if (g_termination_requested && !ctx->quitting)
|
||||||
|
{
|
||||||
|
initiate_quit (ctx);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
print_usage (const char *program_name)
|
||||||
|
{
|
||||||
|
fprintf (stderr,
|
||||||
|
"Usage: %s [OPTION]... { ADDRESS [/MASK] }...\n"
|
||||||
|
"Experimental network scanner.\n"
|
||||||
|
"\n"
|
||||||
|
" -d, --debug run in debug mode\n"
|
||||||
|
" -h, --help display this help and exit\n"
|
||||||
|
" -V, --version output version information and exit\n"
|
||||||
|
" -p, --port PORTS\n"
|
||||||
|
" ports/port ranges, separated by commas\n"
|
||||||
|
" -s, --service SERVICES\n"
|
||||||
|
" services to scan for\n"
|
||||||
|
" --write-default-cfg [FILENAME]\n"
|
||||||
|
" write a default configuration file and exit\n",
|
||||||
|
program_name);
|
||||||
|
}
|
||||||
|
|
||||||
|
int
|
||||||
|
main (int argc, char *argv[])
|
||||||
|
{
|
||||||
|
const char *invocation_name = argv[0];
|
||||||
|
|
||||||
|
struct app_context ctx;
|
||||||
|
app_context_init (&ctx);
|
||||||
|
|
||||||
|
// TODO: timeout for connect()
|
||||||
|
// TODO: timeout for fingerprint/whatever
|
||||||
|
static struct option opts[] =
|
||||||
|
{
|
||||||
|
{ "debug", no_argument, NULL, 'd' },
|
||||||
|
{ "help", no_argument, NULL, 'h' },
|
||||||
|
{ "version", no_argument, NULL, 'V' },
|
||||||
|
{ "port", required_argument, NULL, 'p' },
|
||||||
|
{ "service", required_argument, NULL, 's' },
|
||||||
|
{ "write-default-cfg", optional_argument, NULL, 'w' },
|
||||||
|
{ NULL, 0, NULL, 0 }
|
||||||
|
};
|
||||||
|
|
||||||
|
while (1)
|
||||||
|
{
|
||||||
|
int c, opt_index;
|
||||||
|
|
||||||
|
c = getopt_long (argc, argv, "dhVp:s:", opts, &opt_index);
|
||||||
|
if (c == -1)
|
||||||
|
break;
|
||||||
|
|
||||||
|
switch (c)
|
||||||
|
{
|
||||||
|
case 'd':
|
||||||
|
g_debug_mode = true;
|
||||||
|
break;
|
||||||
|
case 'h':
|
||||||
|
print_usage (invocation_name);
|
||||||
|
exit (EXIT_SUCCESS);
|
||||||
|
case 'V':
|
||||||
|
printf (PROGRAM_NAME " " PROGRAM_VERSION "\n");
|
||||||
|
exit (EXIT_SUCCESS);
|
||||||
|
case 'p':
|
||||||
|
if (!list_foreach (optarg,
|
||||||
|
(list_foreach_fn) add_port_range, &ctx))
|
||||||
|
exit (EXIT_FAILURE);
|
||||||
|
break;
|
||||||
|
case 's':
|
||||||
|
if (!list_foreach (optarg,
|
||||||
|
(list_foreach_fn) add_service, &ctx))
|
||||||
|
exit (EXIT_FAILURE);
|
||||||
|
break;
|
||||||
|
case 'w':
|
||||||
|
call_write_default_config (optarg, g_config_table);
|
||||||
|
exit (EXIT_SUCCESS);
|
||||||
|
default:
|
||||||
|
print_error ("wrong options");
|
||||||
|
exit (EXIT_FAILURE);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
argc -= optind;
|
||||||
|
argv += optind;
|
||||||
|
|
||||||
|
if (!argc)
|
||||||
|
{
|
||||||
|
print_usage (invocation_name);
|
||||||
|
exit (EXIT_FAILURE);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Resolve all the scan targets
|
||||||
|
for (int i = 0; i < argc; i++)
|
||||||
|
if (!add_target (&ctx, argv[i]))
|
||||||
|
exit (EXIT_FAILURE);
|
||||||
|
|
||||||
|
setup_signal_handlers ();
|
||||||
|
|
||||||
|
SSL_library_init ();
|
||||||
|
atexit (EVP_cleanup);
|
||||||
|
SSL_load_error_strings ();
|
||||||
|
// XXX: ERR_load_BIO_strings()? Anything else?
|
||||||
|
atexit (ERR_free_strings);
|
||||||
|
|
||||||
|
struct error *e = NULL;
|
||||||
|
if (!read_config_file (&ctx.config, &e))
|
||||||
|
{
|
||||||
|
print_error ("error loading configuration: %s", e->message);
|
||||||
|
error_free (e);
|
||||||
|
exit (EXIT_FAILURE);
|
||||||
|
}
|
||||||
|
|
||||||
|
poller_set (&ctx.poller, g_signal_pipe[0], POLLIN,
|
||||||
|
(poller_dispatcher_func) on_signal_pipe_readable, &ctx);
|
||||||
|
|
||||||
|
if (!load_plugins (&ctx))
|
||||||
|
exit (EXIT_FAILURE);
|
||||||
|
|
||||||
|
LIST_PREPEND (ctx.transports, g_transport_plain);
|
||||||
|
LIST_PREPEND (ctx.transports, g_transport_tls);
|
||||||
|
|
||||||
|
if (!ctx.port_list)
|
||||||
|
{
|
||||||
|
struct port_range *range = xcalloc (1, sizeof *range);
|
||||||
|
range->start = 1; // port 0 is reserved, not bothering with it
|
||||||
|
range->end = 65535;
|
||||||
|
ctx.port_list = range;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!ctx.svc_list.len)
|
||||||
|
{
|
||||||
|
struct str_map_iter iter;
|
||||||
|
str_map_iter_init (&iter, &ctx.services);
|
||||||
|
struct service *service;
|
||||||
|
while ((service = str_map_iter_next (&iter)))
|
||||||
|
str_map_set (&ctx.svc_list, service->name, service);
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
// So far we've only stored service _names_ to the hash map;
|
||||||
|
// let's try to resolve them to actual services.
|
||||||
|
if (!resolve_service_names (&ctx))
|
||||||
|
exit (EXIT_FAILURE);
|
||||||
|
}
|
||||||
|
|
||||||
|
merge_port_ranges (&ctx);
|
||||||
|
merge_ip_ranges (&ctx);
|
||||||
|
|
||||||
|
// TODO: initate the scan -> generate as many jobs as possible
|
||||||
|
|
||||||
|
ctx.polling = true;
|
||||||
|
while (ctx.polling)
|
||||||
|
poller_run (&ctx.poller);
|
||||||
|
|
||||||
|
app_context_free (&ctx);
|
||||||
|
return EXIT_SUCCESS;
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,87 @@
|
||||||
|
// Code taken from https://github.com/floodyberry/siphash with some edits.
|
||||||
|
//
|
||||||
|
// To the extent possible under law, the author(s) have dedicated all copyright
|
||||||
|
// and related and neighboring rights to this software to the public domain
|
||||||
|
// worldwide. This software is distributed without any warranty.
|
||||||
|
//
|
||||||
|
// You should have received a copy of the CC0 Public Domain Dedication along
|
||||||
|
// with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
|
||||||
|
|
||||||
|
#include "siphash.h"
|
||||||
|
|
||||||
|
inline static uint64_t
|
||||||
|
u8to64_le (const unsigned char *p)
|
||||||
|
{
|
||||||
|
return
|
||||||
|
(uint64_t) p[0] |
|
||||||
|
(uint64_t) p[1] << 8 |
|
||||||
|
(uint64_t) p[2] << 16 |
|
||||||
|
(uint64_t) p[3] << 24 |
|
||||||
|
(uint64_t) p[4] << 32 |
|
||||||
|
(uint64_t) p[5] << 40 |
|
||||||
|
(uint64_t) p[6] << 48 |
|
||||||
|
(uint64_t) p[7] << 56 ;
|
||||||
|
}
|
||||||
|
|
||||||
|
uint64_t
|
||||||
|
siphash (const unsigned char key[16], const unsigned char *m, size_t len)
|
||||||
|
{
|
||||||
|
uint64_t v0, v1, v2, v3;
|
||||||
|
uint64_t mi, k0, k1;
|
||||||
|
uint64_t last7;
|
||||||
|
size_t i, blocks;
|
||||||
|
|
||||||
|
k0 = u8to64_le (key + 0);
|
||||||
|
k1 = u8to64_le (key + 8);
|
||||||
|
v0 = k0 ^ 0x736f6d6570736575ull;
|
||||||
|
v1 = k1 ^ 0x646f72616e646f6dull;
|
||||||
|
v2 = k0 ^ 0x6c7967656e657261ull;
|
||||||
|
v3 = k1 ^ 0x7465646279746573ull;
|
||||||
|
|
||||||
|
last7 = (uint64_t) (len & 0xff) << 56;
|
||||||
|
|
||||||
|
#define ROTL64(a,b) (((a)<<(b))|((a)>>(64-b)))
|
||||||
|
|
||||||
|
#define COMPRESS \
|
||||||
|
v0 += v1; v2 += v3; \
|
||||||
|
v1 = ROTL64 (v1,13); v3 = ROTL64 (v3,16); \
|
||||||
|
v1 ^= v0; v3 ^= v2; \
|
||||||
|
v0 = ROTL64 (v0,32); \
|
||||||
|
v2 += v1; v0 += v3; \
|
||||||
|
v1 = ROTL64 (v1,17); v3 = ROTL64 (v3,21); \
|
||||||
|
v1 ^= v2; v3 ^= v0; \
|
||||||
|
v2 = ROTL64(v2,32);
|
||||||
|
|
||||||
|
for (i = 0, blocks = (len & ~(size_t) 7); i < blocks; i += 8)
|
||||||
|
{
|
||||||
|
mi = u8to64_le (m + i);
|
||||||
|
v3 ^= mi;
|
||||||
|
COMPRESS
|
||||||
|
COMPRESS
|
||||||
|
v0 ^= mi;
|
||||||
|
}
|
||||||
|
|
||||||
|
switch (len - blocks)
|
||||||
|
{
|
||||||
|
case 7: last7 |= (uint64_t) m[i + 6] << 48;
|
||||||
|
case 6: last7 |= (uint64_t) m[i + 5] << 40;
|
||||||
|
case 5: last7 |= (uint64_t) m[i + 4] << 32;
|
||||||
|
case 4: last7 |= (uint64_t) m[i + 3] << 24;
|
||||||
|
case 3: last7 |= (uint64_t) m[i + 2] << 16;
|
||||||
|
case 2: last7 |= (uint64_t) m[i + 1] << 8;
|
||||||
|
case 1: last7 |= (uint64_t) m[i + 0] ;
|
||||||
|
default:;
|
||||||
|
};
|
||||||
|
v3 ^= last7;
|
||||||
|
COMPRESS
|
||||||
|
COMPRESS
|
||||||
|
v0 ^= last7;
|
||||||
|
v2 ^= 0xff;
|
||||||
|
COMPRESS
|
||||||
|
COMPRESS
|
||||||
|
COMPRESS
|
||||||
|
COMPRESS
|
||||||
|
|
||||||
|
return v0 ^ v1 ^ v2 ^ v3;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
@ -0,0 +1,10 @@
|
||||||
|
#ifndef SIPHASH_H
|
||||||
|
#define SIPHASH_H
|
||||||
|
|
||||||
|
#include <stdint.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
|
||||||
|
uint64_t siphash (const unsigned char key[16],
|
||||||
|
const unsigned char *m, size_t len);
|
||||||
|
|
||||||
|
#endif // SIPHASH_H
|
||||||
Loading…
Reference in New Issue