apsh_process_netscan_get_sample.c

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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
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 */
 
#include <doca_apsh.h>
#include <doca_log.h>
 
#include "apsh_common.h"
 
DOCA_LOG_REGISTER(PROCESS_NETSCAN_GET);
 
/*
 * Calls the DOCA APSH API function that matches this sample name and prints the result
 *
 * @dma_device_name [in]: IBDEV Name of the device to use for DMA
 * @pci_vuid [in]: VUID of the device exposed to the target system
 * @os_type [in]: Indicates the OS type of the target system
 * @pid [in]: PID of the target process
 * @return: DOCA_SUCCESS on success and DOCA_ERROR otherwise
 */
doca_error_t process_netscan_get(const char *dma_device_name,
                 const char *pci_vuid,
                 enum doca_apsh_system_os os_type,
                 DOCA_APSH_PROCESS_PID_TYPE pid,
                 const char *mem_region,
                 const char *os_symbols)
{
    doca_error_t result;
    int i, nb_processes;
    struct doca_apsh_ctx *apsh_ctx;
    struct doca_apsh_system *sys;
    struct doca_apsh_process *proc, **processes;
    int num_connections;
    struct doca_apsh_netscan **connections;
 
    /* Init */
    result = init_doca_apsh(dma_device_name, &apsh_ctx);
    if (result != DOCA_SUCCESS) {
        DOCA_LOG_ERR("Failed to init the DOCA APSH lib");
        return result;
    }
    DOCA_LOG_INFO("DOCA APSH lib context init successful");
 
    result = init_doca_apsh_system(apsh_ctx, os_type, os_symbols, mem_region, pci_vuid, &sys);
    if (result != DOCA_SUCCESS) {
        DOCA_LOG_ERR("Failed to init the system context");
        return result;
    }
    DOCA_LOG_INFO("DOCA APSH system context created");
 
    result = process_get(pid, sys, &nb_processes, &processes, &proc);
    if (result != DOCA_SUCCESS) {
        if (result == DOCA_ERROR_NOT_FOUND)
            DOCA_LOG_ERR("Process pid %d not found", pid);
        else
            DOCA_LOG_ERR("DOCA APSH encountered an error: %s", doca_error_get_descr(result));
        cleanup_doca_apsh(apsh_ctx, sys);
        return result;
    }
    DOCA_LOG_INFO("Process with PID %u found", pid);
    DOCA_LOG_INFO("Proc(%d) name: %s", pid, doca_apsh_process_info_get(proc, DOCA_APSH_PROCESS_COMM));
 
    result = doca_apsh_process_netscan_get(proc, &connections, &num_connections);
    if (result != DOCA_SUCCESS) {
        DOCA_LOG_ERR("Failed to read connections info from host");
        doca_apsh_processes_free(processes);
        cleanup_doca_apsh(apsh_ctx, sys);
        return result;
    }
    DOCA_LOG_INFO("Successfully performed %s. Host proc(%d) contains %d connections",
              __func__,
              pid,
              num_connections);
 
    /* Print some attributes of the connections */
    DOCA_LOG_INFO("Connections for process %u:", pid);
    for (i = 0; i < num_connections; ++i) {
        DOCA_LOG_INFO(
            "\tConnection %d  -  Protocol: %s, local address: %s:%lu, local address: %s:%lu, state %s",
            i,
            doca_apsh_netscan_info_get(connections[i], DOCA_APSH_NETSCAN_PROTOCOL),
            doca_apsh_netscan_info_get(connections[i], DOCA_APSH_NETSCAN_LOCAL_ADDR),
            doca_apsh_netscan_info_get(connections[i], DOCA_APSH_NETSCAN_LOCAL_PORT),
            doca_apsh_netscan_info_get(connections[i], DOCA_APSH_NETSCAN_REMOTE_ADDR),
            doca_apsh_netscan_info_get(connections[i], DOCA_APSH_NETSCAN_REMOTE_PORT),
            doca_apsh_netscan_info_get(connections[i], DOCA_APSH_NETSCAN_STATE));
        if (os_type == DOCA_APSH_SYSTEM_LINUX) {
            DOCA_LOG_INFO("\tConnection %d  -  FD: %u, family: %s, type: %s, filter %s, namespace: %u",
                      i,
                      doca_apsh_netscan_info_get(connections[i], DOCA_APSH_NETSCAN_LINUX_FD),
                      doca_apsh_netscan_info_get(connections[i], DOCA_APSH_NETSCAN_LINUX_FAMILY),
                      doca_apsh_netscan_info_get(connections[i], DOCA_APSH_NETSCAN_LINUX_TYPE),
                      doca_apsh_netscan_info_get(connections[i], DOCA_APSH_NETSCAN_LINUX_FILTER),
                      doca_apsh_netscan_info_get(connections[i],
                                 DOCA_APSH_NETSCAN_LINUX_NET_NAMESPACE));
        }
        if (os_type == DOCA_APSH_SYSTEM_LINUX &&
            !strcmp(doca_apsh_netscan_info_get(connections[i], DOCA_APSH_NETSCAN_PROTOCOL), "TCP")) {
            DOCA_LOG_INFO(
                "\tConnection %d - TCP connection - Bytes sent: %lu, Bytes acked: %lu, Bytes received: %lu, Segs in: %u, Segs out: %u, Data segs in: %u, Data segs out: %u",
                i,
                doca_apsh_netscan_info_get(connections[i], DOCA_APSH_NETSCAN_LINUX_TCP_BYTES_SENT),
                doca_apsh_netscan_info_get(connections[i], DOCA_APSH_NETSCAN_LINUX_TCP_BYTES_ACKED),
                doca_apsh_netscan_info_get(connections[i], DOCA_APSH_NETSCAN_LINUX_TCP_BYTES_RECEIVED),
                doca_apsh_netscan_info_get(connections[i], DOCA_APSH_NETSCAN_LINUX_TCP_SEGS_IN),
                doca_apsh_netscan_info_get(connections[i], DOCA_APSH_NETSCAN_LINUX_TCP_SEGS_OUT),
                doca_apsh_netscan_info_get(connections[i], DOCA_APSH_NETSCAN_LINUX_TCP_DATA_SEGS_IN),
                doca_apsh_netscan_info_get(connections[i], DOCA_APSH_NETSCAN_LINUX_TCP_DATA_SEGS_OUT));
        }
    }
 
    /* Cleanup */
    doca_apsh_netscan_free(connections);
    doca_apsh_processes_free(processes);
    cleanup_doca_apsh(apsh_ctx, sys);
    return DOCA_SUCCESS;
}