mirror of
https://github.com/ibm-s390-linux/s390-tools.git
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b627b8d8e1
This commit is based on the s390-tools-1.39.0 version. Changes on top of s390-tools-1.39.0: - Add MIT license to all source files - Add LICENSE file - Transform REAMDE to README.md (markdown) - Add AUTHORS.md file - Add CONTRIBUTING.md file - Move changelog from README to CHANGELOG.md file Reviewed-by: Stefan Haberland <sth@linux.vnet.ibm.com> Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
152 lines
3.2 KiB
C
152 lines
3.2 KiB
C
/*
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* zdev - Modify and display the persistent configuration of devices
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*
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* Copyright IBM Corp. 2016, 2017
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*
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* s390-tools is free software; you can redistribute it and/or modify
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* it under the terms of the MIT license. See LICENSE for details.
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*/
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#include <stdlib.h>
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#include <string.h>
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#include "misc.h"
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#include "nic.h"
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#include "path.h"
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/* Determine NIC data for the specified NIC. */
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bool nic_data_get(const char *id, struct nic_data *data_ptr)
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{
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struct nic_data data;
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char *cmd, *vmcp;
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char **argv = NULL;
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int argc = 0;
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bool result = false;
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cmd = misc_asprintf("%s query virtual nic %s 2>/dev/null", PATH_VMCP,
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id);
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vmcp = misc_read_cmd_output(cmd, 0, 1);
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if (!vmcp)
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goto out;
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line_split(vmcp, &argc, &argv);
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/* Type. */
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if (argc < 4)
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goto out;
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if (strcmp(argv[3], "QDIO") == 0)
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data.type = nic_qdio;
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else if (strcmp(argv[3], "HIPERS") == 0)
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data.type = nic_hipers;
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else if (strcmp(argv[3], "IEDN") == 0)
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data.type = nic_iedn;
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else if (strcmp(argv[3], "INMN") == 0)
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data.type = nic_inmn;
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else
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goto out;
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/* Target. */
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if (argc < 13)
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goto out;
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if (strcmp(argv[10], "VSWITCH:") == 0)
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data.target = nic_vswitch;
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else if (strcmp(argv[10], "LAN:") == 0)
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data.target = nic_lan;
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else
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goto out;
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strncpy(data.owner, argv[11], sizeof(data.owner));
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strncpy(data.name, argv[12], sizeof(data.name));
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result = true;
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*data_ptr = data;
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out:
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line_free(argc, argv);
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free(vmcp);
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free(cmd);
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return result;
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}
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/* Used for debugging. */
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void nic_data_print(struct nic_data *data, int level)
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{
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printf("%*snic_data at %p\n", level, "", (void *) data);
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level += 2;
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printf("%*stype=%d\n", level, "", data->type);
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printf("%*starget=%d\n", level, "", data->target);
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printf("%*starget owner=%s\n", level, "", data->owner);
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printf("%*starget name=%s\n", level, "", data->name);
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}
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/* Determine layer2 setting required for the specified vswitch. */
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bool nic_vswitch_get_layer2(const char *name, int *layer2)
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{
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char *cmd, *vmcp;
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char **argv = NULL;
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int argc = 0;
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bool result = false;
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cmd = misc_asprintf("%s query vswitch %s 2>/dev/null", PATH_VMCP, name);
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vmcp = misc_read_cmd_output(cmd, 0, 1);
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if (!vmcp)
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goto out;
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line_split(vmcp, &argc, &argv);
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if (argc < 12)
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goto out;
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if (strcmp(argv[11], "ETHERNET") == 0)
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*layer2 = 1;
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else if (strcmp(argv[11], "NONROUTER") == 0 ||
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strcmp(argv[11], "PRIROUTER") == 0 ||
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strcmp(argv[11], "IP") == 0)
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*layer2 = 0;
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else
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goto out;
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result = true;
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out:
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line_free(argc, argv);
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free(vmcp);
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free(cmd);
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return result;
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}
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/* Determine layer2 setting required for the specified guest lan. */
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bool nic_lan_get_layer2(const char *name, const char *owner, int *layer2)
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{
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char *cmd, *vmcp;
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char **argv = NULL;
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int argc = 0;
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bool result = false;
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if (strcmp(name, "*") == 0)
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return false;
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cmd = misc_asprintf("%s query lan %s owner %s 2>/dev/null", PATH_VMCP,
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name, owner);
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vmcp = misc_read_cmd_output(cmd, 0, 1);
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if (!vmcp)
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goto out;
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line_split(vmcp, &argc, &argv);
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if (argc < 12)
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goto out;
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if (strcmp(argv[11], "ETHERNET") == 0)
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*layer2 = 1;
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else if (strcmp(argv[11], "IP") == 0)
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*layer2 = 0;
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else
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goto out;
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result = true;
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out:
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line_free(argc, argv);
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free(vmcp);
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free(cmd);
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return result;
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}
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