mirror of
https://github.com/rapid7/metasploit-payloads
synced 2025-03-30 22:19:17 +02:00
4ffe127f04
The 'common' library has been removed. The only project that actually used it was metsrv, so the code that metsrv required from common is now directly compiled in as part of that project. The common folder now contains files that are importanta cross all of the projects, with a primary focus on the new "API" style function. What this means is that MetSrv has an API that it exposes through a function pointer that is passed to the extension when it's initialised. This pointer references a structure with all the API functions wired in. This means that: * Extensions don't need to know anything about metsrv at compile time. * The delay loading code can be removed, which was one of the last instances of "metsrv.dll" as a string. * Metsrv.dll no longer exports any functions. More to come.
80 lines
1.7 KiB
C
80 lines
1.7 KiB
C
/*!
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* @file remote.c
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* @brief Definitions of functions and types that interact with a remote endpoint.
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*/
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#include "metsrv.h"
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#include "packet_encryption.h"
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/*!
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* @brief Instantiate a remote context from a file descriptor.
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* @details This function takes a file descriptor and wraps it in \c Remote
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* context which makes it easier to interact with the endpoint.
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* @returns Pointer to the created \c Remote instance.
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* @retval NULL Indicates a memory allocation failure or a lock creation failure.
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* @retval Non-NULL Successful creation of the context.
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*/
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Remote* remote_allocate()
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{
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Remote* remote = (Remote*)calloc(1, sizeof(Remote));
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LOCK* lock = lock_create();
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do
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{
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if (remote == NULL || lock == NULL)
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{
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break;
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}
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remote->lock = lock;
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remote->enc_ctx = NULL;
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remote->pivot_sessions = pivot_tree_create();
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remote->pivot_listeners = pivot_tree_create();
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dprintf("[REMOTE] remote created %p", remote);
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return remote;
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} while (0);
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if (lock)
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{
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lock_destroy(lock);
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}
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if (remote->pivot_sessions)
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{
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pivot_tree_destroy(remote->pivot_sessions);
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}
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if (remote->pivot_listeners)
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{
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pivot_tree_destroy(remote->pivot_listeners);
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}
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free(remote);
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vdprintf("[REMOTE] here 3");
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return NULL;
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}
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/*!
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* @brief Deallocate a remote context.
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* @param remote Pointer to the \c Remote instance to deallocate.
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*/
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VOID remote_deallocate(Remote * remote)
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{
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free_encryption_context(remote);
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pivot_tree_destroy(remote->pivot_sessions);
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pivot_tree_destroy(remote->pivot_listeners);
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if (remote->lock)
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{
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lock_destroy(remote->lock);
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}
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free(remote->orig_config);
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// Wipe our structure from memory
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memset(remote, 0, sizeof(Remote));
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free(remote);
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}
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