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/* nmcli - command-line tool to control NetworkManager
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Copyright 2010 - 2015 Red Hat, Inc.
 */

#ifndef NMC_NMCLI_H
#define NMC_NMCLI_H

#include "NetworkManager.h"
#include "nm-secret-agent-old.h"

#include "nm-meta-setting-desc.h"

#if WITH_POLKIT_AGENT
#include "nm-polkit-listener.h"
#else
/* polkit agent is not available; define fake NMPolkitListener */
typedef gpointer NMPolkitListener;
#endif

/* nmcli exit codes */
typedef enum {
	/* Indicates successful execution */
	NMC_RESULT_SUCCESS = 0,

	/* Unknown / unspecified error */
	NMC_RESULT_ERROR_UNKNOWN = 1,

	/* Wrong invocation of nmcli */
	NMC_RESULT_ERROR_USER_INPUT = 2,

	/* A timeout expired */
	NMC_RESULT_ERROR_TIMEOUT_EXPIRED = 3,

	/* Error in connection activation */
	NMC_RESULT_ERROR_CON_ACTIVATION = 4,

	/* Error in connection deactivation */
	NMC_RESULT_ERROR_CON_DEACTIVATION = 5,

	/* Error in device disconnect */
	NMC_RESULT_ERROR_DEV_DISCONNECT = 6,

	/* Error in connection deletion */
	NMC_RESULT_ERROR_CON_DEL = 7,

	/* NetworkManager is not running */
	NMC_RESULT_ERROR_NM_NOT_RUNNING = 8,

	/* No more used, keep to preserve API */
	NMC_RESULT_ERROR_VERSIONS_MISMATCH = 9,

	/* Connection/Device/AP not found */
	NMC_RESULT_ERROR_NOT_FOUND = 10,

	/* --complete-args signals a file name may follow */
	NMC_RESULT_COMPLETE_FILE = 65,
} NMCResultCode;

typedef enum {
	NMC_TERM_COLOR_NORMAL  = 0,
	NMC_TERM_COLOR_BLACK   = 1,
	NMC_TERM_COLOR_RED     = 2,
	NMC_TERM_COLOR_GREEN   = 3,
	NMC_TERM_COLOR_YELLOW  = 4,
	NMC_TERM_COLOR_BLUE    = 5,
	NMC_TERM_COLOR_MAGENTA = 6,
	NMC_TERM_COLOR_CYAN    = 7,
	NMC_TERM_COLOR_WHITE   = 8
} NmcTermColor;

typedef enum {
	NMC_TERM_FORMAT_NORMAL,
	NMC_TERM_FORMAT_BOLD,
	NMC_TERM_FORMAT_DIM,
	NMC_TERM_FORMAT_UNDERLINE,
	NMC_TERM_FORMAT_BLINK,
	NMC_TERM_FORMAT_REVERSE,
	NMC_TERM_FORMAT_HIDDEN,
} NmcTermFormat;

typedef enum {
	NMC_PRINT_TERSE = 0,
	NMC_PRINT_NORMAL = 1,
	NMC_PRINT_PRETTY = 2
} NMCPrintOutput;

/* === Output fields === */

typedef enum {
	NMC_OF_FLAG_FIELD_NAMES        = 0x00000001,   /* Print field names instead of values */
	NMC_OF_FLAG_SECTION_PREFIX     = 0x00000002,   /* Use the first value as section prefix for the other field names - just in multiline */
	NMC_OF_FLAG_MAIN_HEADER_ADD    = 0x00000004,   /* Print main header in addition to values/field names */
	NMC_OF_FLAG_MAIN_HEADER_ONLY   = 0x00000008,   /* Print main header only */
} NmcOfFlags;

extern const const NMMetaType nmc_meta_type_generic_info;

typedef struct _NmcOutputField NmcOutputField;
typedef struct _NmcMetaGenericInfo NmcMetaGenericInfo;

struct _NmcMetaGenericInfo {
	const NMMetaType *meta_type;
	const char *name;
	const NmcMetaGenericInfo *const*nested;
	const char *(*get_fcn) (const NMMetaEnvironment *environment,
	                        gpointer environment_user_data,
	                        const NmcMetaGenericInfo *info,
	                        gpointer target,
	                        NMMetaAccessorGetType get_type,
	                        NMMetaAccessorGetFlags get_flags,
	                        char **out_to_free);
};

#define NMC_META_GENERIC(n, ...) \
	(&((NmcMetaGenericInfo) { \
		.meta_type =                        &nmc_meta_type_generic_info, \
		.name =                             N_ (n), \
		__VA_ARGS__ \
	}))

#define NMC_META_GENERIC_WITH_NESTED(n, nest) \
	NMC_META_GENERIC (n, .nested = (nest))

struct _NmcOutputField {
	const NMMetaAbstractInfo *info;
	int width;                      /* Width in screen columns */
	void *value;                    /* Value of current field - char* or char** (NULL-terminated array) */
	gboolean value_is_array;        /* Whether value is char** instead of char* */
	gboolean free_value;            /* Whether to free the value */
	NmcOfFlags flags;               /* Flags - whether and how to print values/field names/headers */
	NmcTermColor color;             /* Use this color to print value */
	NmcTermFormat color_fmt;        /* Use this terminal format to print value */
};

typedef enum {
	NMC_USE_COLOR_AUTO,
	NMC_USE_COLOR_YES,
	NMC_USE_COLOR_NO,
} NmcColorOption;

typedef struct _NmcConfig {
	NMCPrintOutput print_output;                      /* Output mode */
	NmcColorOption use_colors;                        /* Whether to use colors for output: option '--color' */
	gboolean multiline_output;                        /* Multiline output instead of default tabular */
	gboolean escape_values;                           /* Whether to escape ':' and '\' in terse tabular mode */
	gboolean in_editor;                               /* Whether running the editor - nmcli con edit' */
} NmcConfig;

typedef struct _NmcOutputData {
	GPtrArray *output_data;                           /* GPtrArray of arrays of NmcOutputField structs - accumulates data for output */
} NmcOutputData;

/* NmCli - main structure */
typedef struct _NmCli {
	NMClient *client;                                 /* Pointer to NMClient of libnm */

	NMCResultCode return_value;                       /* Return code of nmcli */
	GString *return_text;                             /* Reason text */

	int timeout;                                      /* Operation timeout */

	NMSecretAgentOld *secret_agent;                   /* Secret agent */
	GHashTable *pwds_hash;                            /* Hash table with passwords in passwd-file */
	NMPolkitListener *pk_listener ;                   /* polkit agent listener */

	int should_wait;                                  /* Semaphore indicating whether nmcli should not end or not yet */
	gboolean nowait_flag;                             /* '--nowait' option; used for passing to callbacks */
	gboolean mode_specified;                          /* Whether tabular/multiline mode was specified via '--mode' option */
	union {
		const NmcConfig nmc_config;
		NmcConfig nmc_config_mutable;
	};
	char *required_fields;                            /* Required fields in output: '--fields' option */
	gboolean ask;                                     /* Ask for missing parameters: option '--ask' */
	gboolean complete;                                /* Autocomplete the command line */
	gboolean show_secrets;                            /* Whether to display secrets (both input and output): option '--show-secrets' */
	gboolean editor_status_line;                      /* Whether to display status line in connection editor */
	gboolean editor_save_confirmation;                /* Whether to ask for confirmation on saving connections with 'autoconnect=yes' */
	gboolean editor_show_secrets;                     /* Whether to display secrets in the editor' */
	NmcTermColor editor_prompt_color;                 /* Color of prompt in connection editor */
} NmCli;

extern NmCli nm_cli;

/* Error quark for GError domain */
#define NMCLI_ERROR (nmcli_error_quark ())
GQuark nmcli_error_quark (void);

gboolean nmc_seen_sigint (void);
void     nmc_clear_sigint (void);
void     nmc_set_sigquit_internal (void);
void     nmc_exit (void);

void nmc_empty_output_fields (NmcOutputData *output_data);

#define NMC_OUTPUT_DATA_DEFINE_SCOPED(out) \
	gs_unref_array GArray *out##_indices = NULL; \
	nm_auto (nmc_empty_output_fields) NmcOutputData out = { \
		.output_data = g_ptr_array_new_full (20, g_free), \
	}

#endif /* NMC_NMCLI_H */