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Refined the commands

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This commit is contained in:
Alexei KADIR 2024-02-18 14:38:31 +01:00
parent 3e08d6a438
commit 4d859efdac
3 changed files with 151 additions and 80 deletions
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27
src/entry.c
View File

@ -384,9 +384,19 @@ Status RemoveEntryDisk(const char* entry_identifier) {
}
Status ResetEntryDisk(const char* entry_identifier, const char* backing_identifier) {
// Check if the disk exists
// Check that the entry exists
bool exists;
Status status = DoesEntryDiskExist(entry_identifier, &exists);
Status status = DoesEntryExist(entry_identifier, &exists);
if (status != SUCCESS)
return status;
if (!exists) {
Log(LOG_LEVEL_ERROR, "The entry '%s' does not exist.", entry_identifier);
return FAILURE;
}
// Check if the disk exists
status = DoesEntryDiskExist(entry_identifier, &exists);
if (status != SUCCESS)
return status;
@ -438,7 +448,7 @@ Status ResetEntryDisk(const char* entry_identifier, const char* backing_identifi
}
Status TrimEntryDisk(const char* entry_identifier) {
// Check if the disk exists
// Check if the entry exists
bool exists;
Status status = DoesEntryDiskExist(entry_identifier, &exists);
if (status != SUCCESS)
@ -449,6 +459,16 @@ Status TrimEntryDisk(const char* entry_identifier) {
return FAILURE;
}
// Check if the disk exists
status = DoesEntryDiskExist(entry_identifier, &exists);
if (status != SUCCESS)
return status;
if (!exists) {
Log(LOG_LEVEL_ERROR, "The disk for the entry '%s' does not exist.", entry_identifier);
return FAILURE;
}
// Get the disk path
char* entry_disk_path = NULL;
status = GetEntryDiskPath(entry_identifier, &entry_disk_path);
@ -461,3 +481,4 @@ Status TrimEntryDisk(const char* entry_identifier) {
return status;
}

2
src/entry.h
View File

@ -22,3 +22,5 @@ Status AddBackedEntryDisk(const char* entry_identifier, const char* backing_iden
Status RemoveEntryDisk(const char* entry_identifier);
Status ResetEntryDisk(const char* entry_identifier, const char* backing_identifier); // TODO
Status TrimEntryDisk(const char* entry_identifier);
Status GetEntryBacking(const char* entry_identifier, char** _backing_identifier);

208
src/sandbox.c
View File

@ -9,6 +9,7 @@
#include <errno.h>
#include <pwd.h>
#include <unistd.h>
#include <time.h>
Command COMMANDS[] = {
{CommandHelp, "help", "[command]", "Prints this help message.",
@ -29,7 +30,7 @@ Command COMMANDS[] = {
"TODO: Add details."},
{CommandRemoveDisk, "remove-disk", "<entry id>", "Removes the disk from an entry.",
"TODO: Add details."},
{CommandResetDisk, "reset-disk", "<entry id> [--update|-u] [--backing|-b <backing id>]", "Resets the disk of an entry.",
{CommandResetDisk, "reset-disk", "<entry id> [--update|-u] [--backed|-b <backing id>]", "Resets the disk of an entry.",
"TODO: Add details."},
{CommandTrimDisk, "trim-disk", "<entry id>", "Trims the disk of an entry.",
"TODO: Add details."}};
@ -114,8 +115,6 @@ int CommandHelp(int argc, char* argv[]) {
}
fprintf(stdout, "\nFor more information, run 'sandbox help <command>'.\n");
return EXIT_SUCCESS;
} else if (argc == 1) { // If there is one argument, print the help message for the command
const char* input = argv[0];
@ -136,7 +135,7 @@ int CommandHelp(int argc, char* argv[]) {
Log(LOG_LEVEL_ERROR, "Unknown command '%s'.", input);
return EXIT_FAILURE;
} else { // If there are too many arguments, print an error message
Log(LOG_LEVEL_ERROR, "Too many arguments supplied to 'help'.");
Log(LOG_LEVEL_ERROR, "Too many arguments supplied to command 'help'.");
return EXIT_FAILURE;
}
@ -144,62 +143,91 @@ int CommandHelp(int argc, char* argv[]) {
}
int CommandVersion(int argc, char* argv[]) {
if (argc > 0) {
Log(LOG_LEVEL_ERROR, "Too many arguments supplied to command 'version'.");
return EXIT_FAILURE;
}
fprintf(stdout, "Sandbox utility v%s\n", VERSION);
return EXIT_SUCCESS;
}
int CommandAddEntry(int argc, char* argv[]) {
if (argc < 1) {
Log(LOG_LEVEL_ERROR, "Too few arguments supplied to 'add-entry'.");
Log(LOG_LEVEL_ERROR, "Too few arguments supplied to command 'add-entry'.");
return EXIT_FAILURE;
} else if (argc > 1) {
Log(LOG_LEVEL_ERROR, "Too many arguments supplied to 'add-entry'.");
Log(LOG_LEVEL_ERROR, "Too many arguments supplied to command 'add-entry'.");
return EXIT_FAILURE;
}
char* entry_identifier = argv[0];
// Extract the entry identifier
const char* entry_id = argv[0];
Status status = AddEntry(entry_identifier);
// Create the entry
Status status = AddEntry(entry_id);
if (status != SUCCESS)
return EXIT_FAILURE;
Log(LOG_LEVEL_INFO, "Added entry '%s'.", entry_identifier);
Log(LOG_LEVEL_INFO, "Successfully added entry '%s'.", entry_id);
return EXIT_SUCCESS;
}
int CommandRemoveEntry(int argc, char* argv[]) {
if (argc < 1) {
Log(LOG_LEVEL_ERROR, "Too few arguments supplied to 'remove-entry'.");
Log(LOG_LEVEL_ERROR, "Too few arguments supplied to command 'remove-entry'.");
return EXIT_FAILURE;
} else if (argc > 1) {
Log(LOG_LEVEL_ERROR, "Too many arguments supplied to 'remove-entry'.");
Log(LOG_LEVEL_ERROR, "Too many arguments supplied to command 'remove-entry'.");
return EXIT_FAILURE;
}
char* entry_identifier = argv[0];
// Extract the entry identifier
const char* entry_id = argv[0];
Status status = RemoveEntry(entry_identifier);
// Remove the entry
Status status = RemoveEntry(entry_id);
if (status != SUCCESS)
return EXIT_FAILURE;
Log(LOG_LEVEL_INFO, "Removed entry '%s'.", entry_identifier);
Log(LOG_LEVEL_INFO, "Successfully removed entry '%s'.", entry_id);
return EXIT_SUCCESS;
}
int CommandListEntries(int argc, char* argv[]) {
if (argc > 0) {
Log(LOG_LEVEL_ERROR, "Too many arguments supplied to 'list-entries'.");
Log(LOG_LEVEL_ERROR, "Too many arguments supplied to command 'list-entries'.");
return EXIT_FAILURE;
}
// List the entries
char** entries = NULL;
Status status = ListEntries(&entries);
if (status != SUCCESS)
return EXIT_FAILURE;
for (size_t i = 0; entries[i] != NULL; i++)
fprintf(stdout, "%s\n", entries[i]);
// Calculate the maximum length of the entries
size_t max_length = 0;
for (size_t i = 0; entries[i] != NULL; i++) {
size_t length = strlen(entries[i]);
if (length > max_length)
max_length = length;
}
// Print the entries
for (size_t i = 0; entries[i] != NULL; i++) {
bool has_disk;
status = DoesEntryDiskExist(entries[i], &has_disk);
if (status != SUCCESS)
return EXIT_FAILURE;
if (has_disk)
fprintf(stdout, "%zu | %-*s | %s |\n", i, (int)max_length, entries[i], "Has disk");
else
fprintf(stdout, "%zu | %-*s | %s |\n", i, (int)max_length, entries[i], "No disk ");
}
// Free the entries
for (size_t i = 0; entries[i] != NULL; i++)
free(entries[i]);
free(entries);
@ -209,158 +237,178 @@ int CommandListEntries(int argc, char* argv[]) {
int CommandClearEntries(int argc, char* argv[]) {
if (argc > 0) {
Log(LOG_LEVEL_ERROR, "Too many arguments supplied to 'clear-entries'.");
Log(LOG_LEVEL_ERROR, "Too many arguments supplied to command 'clear-entries'.");
return EXIT_FAILURE;
}
// Clear the entries
Status status = ClearEntries();
if (status != SUCCESS)
return EXIT_FAILURE;
Log(LOG_LEVEL_INFO, "Cleared all entries.");
Log(LOG_LEVEL_INFO, "Successfully cleared all entries.");
return EXIT_SUCCESS;
}
int CommandAddDisk(int argc, char* argv[]) {
if (argc < 1) {
Log(LOG_LEVEL_ERROR, "Too few arguments supplied to 'add-disk'.");
Log(LOG_LEVEL_ERROR, "Too few arguments supplied to command 'add-disk'.");
return EXIT_FAILURE;
}
char* entry_identifier = argv[0];
// Extract the entry identifier
const char* entry_id = argv[0];
// Extract the options
bool root = false;
uint64_t size = 0;
const char* size_str = NULL;
bool backed = false;
const char* backing_identifier = NULL;
const char* backing_id = NULL;
for (int i = 1; i < argc; i++) {
if (strcmp(argv[i], "--root") == 0 || strcmp(argv[i], "-r") == 0) {
// Check if the option is duplicated
if (root) {
Log(LOG_LEVEL_ERROR, "Duplicate '--root' argument supplied to 'add-disk'.");
Log(LOG_LEVEL_ERROR, "Duplicate option '--root'.");
return EXIT_FAILURE;
}
if (i + 1 >= argc) {
Log(LOG_LEVEL_ERROR, "Too few arguments supplied to 'add-disk'. Missing size for '--root <size>'.");
// Check if the option is the last argument
if (i + 1 == argc) {
Log(LOG_LEVEL_ERROR, "Missing argument for option '--root <size>'.");
return EXIT_FAILURE;
}
// Extract the size
size_str = argv[i + 1];
root = true;
Status status = ParseSize(argv[i + 1], &size);
if (status != SUCCESS)
return EXIT_FAILURE;
if (size == 0) {
Log(LOG_LEVEL_ERROR, "Invalid size '%s' supplied to 'add-disk'.", argv[i + 1]);
return EXIT_FAILURE;
}
i++; // Consumes the next argument (the size)
// Skip the next argument as it is the size
i++;
} else if (strcmp(argv[i], "--backed") == 0 || strcmp(argv[i], "-b") == 0) {
// Check if the option is duplicated
if (backed) {
Log(LOG_LEVEL_ERROR, "Duplicate '--backed' argument supplied to 'add-disk'.");
Log(LOG_LEVEL_ERROR, "Duplicate option '--backed'.");
return EXIT_FAILURE;
}
if (i + 1 >= argc) {
Log(LOG_LEVEL_ERROR, "Too few arguments supplied to 'add-disk'. Missing backing identifier for '--backed <backing id>'.");
// Check if the option is the last argument
if (i + 1 == argc) {
Log(LOG_LEVEL_ERROR, "Missing argument for option '--backed <backing id>'.");
return EXIT_FAILURE;
}
// Extract the backing identifier
backing_id = argv[i + 1];
backed = true;
backing_identifier = argv[i + 1];
if (!IsBackingIdentifierValid(backing_identifier)) {
Log(LOG_LEVEL_ERROR, "Invalid backing identifier '%s' supplied to 'add-disk'.", backing_identifier);
return EXIT_FAILURE;
}
i++; // Consumes the next argument (the backing identifier)
// Skip the next argument as it is the backing identifier
i++;
} else {
Log(LOG_LEVEL_ERROR, "Unknown argument '%s' supplied to 'add-disk'.", argv[i]);
Log(LOG_LEVEL_ERROR, "Unknown option '%s'.", argv[i]);
return EXIT_FAILURE;
}
}
// Don't allow both root and backed options
if (root && backed) {
Log(LOG_LEVEL_ERROR, "The options '--root' and '--backed' cannot be used together in 'add-disk'.");
Log(LOG_LEVEL_ERROR, "Cannot use both '--root' and '--backed' options.");
return EXIT_FAILURE;
}
if (root) {
Status status = AddRootEntryDisk(entry_identifier, size);
// Parse the size
uint64_t size;
Status status = ParseSize(size_str, &size);
if (status != SUCCESS)
return EXIT_FAILURE;
char* size_str = NULL;
status = FormatSize(size, &size_str);
Log(LOG_LEVEL_INFO, "Added root disk to entry '%s' with size %s.", entry_identifier, size_str);
free(size_str);
} else if (backed) {
Status status = AddBackedEntryDisk(entry_identifier, backing_identifier);
// Add the root disk
status = AddRootEntryDisk(entry_id, size);
if (status != SUCCESS)
return EXIT_FAILURE;
Log(LOG_LEVEL_INFO, "Added backed disk to entry '%s' with backing '%s'.", entry_identifier, backing_identifier);
} else {
char* backing_identifier = NULL;
Status status = GetLatestBacking(&backing_identifier);
if (status != SUCCESS)
return EXIT_FAILURE;
// Format the size
char* size_fmt;
status = FormatSize(size, &size_fmt);
status = AddBackedEntryDisk(entry_identifier, backing_identifier);
if (status != SUCCESS) {
free(backing_identifier);
return EXIT_FAILURE;
}
Log(LOG_LEVEL_INFO, "Added backed disk to entry '%s' with backing '%s'.", entry_identifier, backing_identifier);
free(backing_identifier);
}
Log(LOG_LEVEL_INFO, "Successfully added root disk to entry '%s' of size %s.", entry_id, size_fmt);
free(size_fmt);
return EXIT_SUCCESS;
} else if (backed) {
// Check if the backing exists
Status status = AddBackedEntryDisk(entry_id, backing_id);
if (status != SUCCESS)
return EXIT_FAILURE;
Log(LOG_LEVEL_INFO, "Successfully added backed disk to entry '%s' with backing '%s'.", entry_id, backing_id);
return EXIT_SUCCESS;
} else {
// Get the latest backing to use as the default backing
char* backing_id;
Status status = GetLatestBacking(&backing_id);
if (status != SUCCESS) {
Log(LOG_LEVEL_ERROR, "Failed to get the latest backing to use as the default backing.");
return EXIT_FAILURE;
}
// Add the backed disk
status = AddBackedEntryDisk(entry_id, backing_id);
if (status != SUCCESS) {
free(backing_id);
return EXIT_FAILURE;
}
Log(LOG_LEVEL_INFO, "Successfully added backed disk to entry '%s' with backing '%s'.", entry_id, backing_id);
free(backing_id);
return EXIT_SUCCESS;
}
}
int CommandRemoveDisk(int argc, char* argv[]) {
if (argc < 1) {
Log(LOG_LEVEL_ERROR, "Too few arguments supplied to 'remove-disk'.");
Log(LOG_LEVEL_ERROR, "Too few arguments supplied to command 'remove-disk'.");
return EXIT_FAILURE;
} else if (argc > 1) {
Log(LOG_LEVEL_ERROR, "Too many arguments supplied to 'remove-disk'.");
Log(LOG_LEVEL_ERROR, "Too many arguments supplied to command 'remove-disk'.");
return EXIT_FAILURE;
}
char* entry_identifier = argv[0];
// Extract the entry identifier
const char* entry_id = argv[0];
Status status = RemoveEntryDisk(entry_identifier);
// Remove the disk
Status status = RemoveEntryDisk(entry_id);
if (status != SUCCESS)
return EXIT_FAILURE;
Log(LOG_LEVEL_INFO, "Removed disk from entry '%s'.", entry_identifier);
Log(LOG_LEVEL_INFO, "Successfully removed disk from entry '%s'.", entry_id);
return EXIT_SUCCESS;
}
int CommandResetDisk(int argc, char* argv[]) {
return 0;
}
int CommandTrimDisk(int argc, char* argv[]) {
if (argc < 1) {
Log(LOG_LEVEL_ERROR, "Too few arguments supplied to 'trim-disk'.");
Log(LOG_LEVEL_ERROR, "Too few arguments supplied to command 'trim-disk'.");
return EXIT_FAILURE;
} else if (argc > 1) {
Log(LOG_LEVEL_ERROR, "Too many arguments supplied to 'trim-disk'.");
Log(LOG_LEVEL_ERROR, "Too many arguments supplied to command 'trim-disk'.");
return EXIT_FAILURE;
}
char* entry_identifier = argv[0];
// Extract the entry identifier
const char* entry_id = argv[0];
Status status = TrimEntryDisk(entry_identifier);
// Trim the disk
Status status = TrimEntryDisk(entry_id);
if (status != SUCCESS)
return EXIT_FAILURE;
Log(LOG_LEVEL_INFO, "Trimmed disk of entry '%s'.", entry_identifier);
Log(LOG_LEVEL_INFO, "Successfully trimmed disk from entry '%s'.", entry_id);
return EXIT_SUCCESS;
}