/*
- * Copyright (C) 2007-2014 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2007 Andre Noll <maan@tuebingen.mpg.de>
*
* Licensed under the GPL v2. For licencing details see COPYING.
*/
/** Define an osl table description for a blob table. */
#define DEFINE_BLOB_TABLE_DESC(table_name) \
- struct osl_table_description table_name ## _table_desc = { \
+ static struct osl_table_description table_name ## _table_desc = { \
.name = #table_name, \
.num_columns = NUM_BLOB_COLUMNS, \
.flags = OSL_LARGE_TABLE, \
BLOB_LS_FLAG_SORT_BY_ID = 4,
};
-/** Structure passed to the \p print_blob function. */
-struct lsblob_action_data {
- /** The flags given at the command line. */
- uint32_t flags;
- /** Message buffer. */
- struct para_buffer pb;
-};
-
static int print_blob(struct osl_table *table, struct osl_row *row,
const char *name, void *data)
{
- struct lsblob_action_data *lbad = data;
+ struct afs_callback_arg *aca = data;
+ uint32_t flags = *(uint32_t *)aca->query.data;
struct osl_object obj;
uint32_t id;
int ret;
- if (!(lbad->flags & BLOB_LS_FLAG_LONG))
- return para_printf(&lbad->pb, "%s\n", name);
+ if (!(flags & BLOB_LS_FLAG_LONG)) {
+ para_printf(&aca->pbout, "%s\n", name);
+ return 0;
+ }
ret = osl(osl_get_object(table, row, BLOBCOL_ID, &obj));
if (ret < 0) {
- para_printf(&lbad->pb, "%s: %s\n", name, para_strerror(-ret));
+ para_printf(&aca->pbout, "cannot list %s\n", name);
return ret;
}
id = *(uint32_t *)obj.data;
- return para_printf(&lbad->pb, "%u\t%s\n", id, name);
+ para_printf(&aca->pbout, "%u\t%s\n", id, name);
+ return 1;
}
-static void com_lsblob_callback(struct osl_table *table,
- int fd, const struct osl_object *query)
+static int com_lsblob_callback(struct osl_table *table,
+ struct afs_callback_arg *aca)
{
- struct lsblob_action_data lbad = {
- .flags = *(uint32_t *)query->data,
- .pb = {
- .max_size = shm_get_shmmax(),
- .private_data = &(struct afs_max_size_handler_data) {
- .fd = fd,
- .band = SBD_OUTPUT
- },
- .max_size_handler = afs_max_size_handler,
- }
- };
+ uint32_t flags = *(uint32_t *)aca->query.data;
struct pattern_match_data pmd = {
.table = table,
- .patterns = {.data = (char *)query->data + sizeof(uint32_t),
- .size = query->size - sizeof(uint32_t)},
+ .patterns = {.data = (char *)aca->query.data + sizeof(uint32_t),
+ .size = aca->query.size - sizeof(uint32_t)},
.pm_flags = PM_NO_PATTERN_MATCHES_EVERYTHING | PM_SKIP_EMPTY_NAME,
.match_col_num = BLOBCOL_NAME,
- .data = &lbad,
+ .data = aca,
.action = print_blob,
};
int ret;
- if (lbad.flags & BLOB_LS_FLAG_REVERSE)
+ if (flags & BLOB_LS_FLAG_REVERSE)
pmd.pm_flags |= PM_REVERSE_LOOP;
- if (!(lbad.flags & BLOB_LS_FLAG_SORT_BY_ID))
+ if (!(flags & BLOB_LS_FLAG_SORT_BY_ID))
pmd.loop_col_num = BLOBCOL_NAME;
else
pmd.loop_col_num = BLOBCOL_ID;
ret = for_each_matching_row(&pmd);
if (ret < 0)
- para_printf(&lbad.pb, "%s\n", para_strerror(-ret));
- else if (pmd.num_matches == 0 && pmd.patterns.size > 0)
- para_printf(&lbad.pb, "no matches\n");
- if (lbad.pb.offset)
- pass_buffer_as_shm(fd, SBD_OUTPUT, lbad.pb.buf, lbad.pb.offset);
- free(lbad.pb.buf);
+ goto out;
+ if (pmd.num_matches == 0 && pmd.patterns.size > 0)
+ ret = -E_NO_MATCH;
+out:
+ return ret;
}
-static int com_lsblob(callback_function *f, struct command_context *cc)
+static int com_lsblob(afs_callback *f, struct command_context *cc)
{
uint32_t flags = 0;
struct osl_object options = {.data = &flags, .size = sizeof(flags)};
return (ret < 0)? ret : ret2;
}
-static void com_catblob_callback(struct osl_table *table, int fd,
- const struct osl_object *query)
+static int com_catblob_callback(struct osl_table *table,
+ struct afs_callback_arg *aca)
{
+ int ret;
struct pattern_match_data pmd = {
.table = table,
- .patterns = *query,
+ .patterns = aca->query,
.loop_col_num = BLOBCOL_NAME,
.match_col_num = BLOBCOL_NAME,
.pm_flags = PM_SKIP_EMPTY_NAME,
- .data = &fd,
+ .data = &aca->fd,
.action = cat_blob
};
- for_each_matching_row(&pmd);
- if (pmd.num_matches == 0) {
- char err_msg[] = "no matches\n";
- pass_buffer_as_shm(fd, SBD_OUTPUT, err_msg, sizeof(err_msg));
- }
+ ret = for_each_matching_row(&pmd);
+ if (ret < 0)
+ return ret;
+ if (pmd.num_matches == 0)
+ ret = -E_NO_MATCH;
+ return ret;
}
-static int com_catblob(callback_function *f, struct command_context *cc)
+static int com_catblob(afs_callback *f, struct command_context *cc)
{
if (cc->argc < 2)
return -E_BLOB_SYNTAX;
afs_cb_result_handler, cc);
}
-/** Used for removing rows from a blob table. */
-struct rmblob_data {
- /** Message buffer. */
- struct para_buffer pb;
-};
-
static int remove_blob(struct osl_table *table, struct osl_row *row,
const char *name, void *data)
{
- struct rmblob_data *rmbd = data;
+ struct afs_callback_arg *aca = data;
int ret = osl(osl_del_row(table, row));
if (ret < 0) {
- para_printf(&rmbd->pb, "%s: %s\n", name, para_strerror(-ret));
+ para_printf(&aca->pbout, "cannot remove %s\n", name);
return ret;
}
return 1;
}
-static void com_rmblob_callback(struct osl_table *table, int fd,
- const struct osl_object *query)
+static int com_rmblob_callback(struct osl_table *table,
+ struct afs_callback_arg *aca)
{
- int ret, ret2 = 0;
- struct rmblob_data rmbd = {
- .pb = {
- .max_size = shm_get_shmmax(),
- .private_data = &(struct afs_max_size_handler_data) {
- .fd = fd,
- .band = SBD_OUTPUT
- },
- .max_size_handler = afs_max_size_handler,
- }
- };
+ int ret;
struct pattern_match_data pmd = {
.table = table,
- .patterns = *query,
+ .patterns = aca->query,
.loop_col_num = BLOBCOL_NAME,
.match_col_num = BLOBCOL_NAME,
.pm_flags = PM_SKIP_EMPTY_NAME,
- .data = &rmbd,
+ .data = aca,
.action = remove_blob
};
ret = for_each_matching_row(&pmd);
- if (ret < 0) {
- ret2 = para_printf(&rmbd.pb, "%s\n", para_strerror(-ret));
- if (ret2 < 0)
- goto out;
- }
+ if (ret < 0)
+ goto out;
if (pmd.num_matches == 0)
- ret2 = para_printf(&rmbd.pb, "no matches, nothing removed\n");
+ ret = -E_NO_MATCH;
else {
- ret2 = para_printf(&rmbd.pb, "removed %d blobs\n", pmd.num_matches);
- afs_event(BLOB_RENAME, NULL, table);
+ para_printf(&aca->pbout, "removed %u blob(s)\n",
+ pmd.num_matches);
+ ret = afs_event(BLOB_REMOVE, NULL, table);
}
out:
- if (ret2 >= 0 && rmbd.pb.offset)
- pass_buffer_as_shm(fd, SBD_OUTPUT, rmbd.pb.buf, rmbd.pb.offset);
- free(rmbd.pb.buf);
+ return ret;
}
-static int com_rmblob(callback_function *f, struct command_context *cc)
+static int com_rmblob(afs_callback *f, struct command_context *cc)
{
if (cc->argc < 2)
return -E_MOOD_SYNTAX;
afs_cb_result_handler, cc);
}
-static void com_addblob_callback(struct osl_table *table, int fd,
- const struct osl_object *query)
+static int com_addblob_callback(struct osl_table *table,
+ struct afs_callback_arg *aca)
{
struct osl_object objs[NUM_BLOB_COLUMNS];
- char *name = query->data, *msg;
- size_t name_len = strlen(name) + 1, msg_len;
+ char *name = aca->query.data;
+ size_t name_len = strlen(name) + 1;
uint32_t id;
unsigned num_rows;
int ret;
goto out;
id = *(uint32_t *)obj.data;
obj.data = name + name_len;
- obj.size = query->size - name_len;
+ obj.size = aca->query.size - name_len;
ret = osl(osl_update_object(table, row, BLOBCOL_DEF, &obj));
goto out;
}
objs[BLOBCOL_NAME].data = name;
objs[BLOBCOL_NAME].size = name_len;
objs[BLOBCOL_DEF].data = name + name_len;
- objs[BLOBCOL_DEF].size = query->size - name_len;
+ objs[BLOBCOL_DEF].size = aca->query.size - name_len;
ret = osl(osl_add_row(table, objs));
if (ret < 0)
goto out;
- afs_event(BLOB_ADD, NULL, table);
+ ret = afs_event(BLOB_ADD, NULL, table);
out:
if (ret < 0)
- msg_len = xasprintf(&msg, "could not add %s: %s\n", name,
- para_strerror(-ret));
+ para_printf(&aca->pbout, "cannot add %s\n", name);
else
- msg_len = xasprintf(&msg, "added %s as id %u\n", name, id);
- pass_buffer_as_shm(fd, SBD_OUTPUT, msg, msg_len);
- free(msg);
+ para_printf(&aca->pbout, "added %s as id %u\n", name, id);
+ return ret;
}
/* Write input from fd to dynamically allocated buffer, but maximal 10M. */
}
/*
- * Read data from a file descriptor, and send it to the afs process.
- *
- * \param cc Contains the file descriptor to read data from.
- * \param arg_obj Pointer to the arguments to \a f.
- * \param f The callback function.
- * \param result_handler See \ref send_callback_request.
- * \param private_result_data See \ref send_callback_request.
+ * Read blob from a file descriptor and send it to afs.
*
- * This function is used by the addblob commands that instruct para_server to
- * store arbitrary data in a blob table. Input data is read and decrypted from
- * the file descriptor given by \a cc. This data is concatenated with the
- * buffer given by \a arg_obj, and the combined buffer is made available to the
- * afs process via the callback method. See \ref send_callback_request for
- * details.
- *
- * \return Negative on errors, the return value of the underlying call to
- * send_callback_request() otherwise.
+ * This function is called from the addblob command handlers to instruct the
+ * afs process to store the input in a blob table. Input is read and decrypted
+ * from the file descriptor given by cc and appended to arg_obj, which contains
+ * the name of the blob to create. The combined buffer is made available to the
+ * afs process via the callback method.
*/
static int stdin_command(struct command_context *cc, struct osl_object *arg_obj,
- callback_function *f, callback_result_handler *result_handler,
- void *private_result_data)
+ afs_callback *f)
{
struct osl_object query, stdin_obj;
int ret;
memcpy((char *)query.data + arg_obj->size, stdin_obj.data,
stdin_obj.size);
free(stdin_obj.data);
- ret = send_callback_request(f, &query, result_handler, private_result_data);
+ ret = send_callback_request(f, &query, afs_cb_result_handler, cc);
free(query.data);
return ret;
}
-static int com_addblob(callback_function *f, struct command_context *cc)
+static int com_addblob(afs_callback *f, struct command_context *cc)
{
struct osl_object arg_obj;
return -E_BLOB_SYNTAX;
arg_obj.size = strlen(cc->argv[1]) + 1;
arg_obj.data = (char *)cc->argv[1];
- return stdin_command(cc, &arg_obj, f, afs_cb_result_handler, cc);
+ return stdin_command(cc, &arg_obj, f);
}
-/* FIXME: Print output to client, not to log file */
-static void com_mvblob_callback(struct osl_table *table, __a_unused int fd,
- const struct osl_object *query)
+static int com_mvblob_callback(struct osl_table *table,
+ struct afs_callback_arg *aca)
{
- char *src = (char *) query->data;
+ char *src = (char *)aca->query.data;
struct osl_object obj = {.data = src, .size = strlen(src) + 1};
char *dest = src + obj.size;
struct osl_row *row;
int ret = osl(osl_get_row(table, BLOBCOL_NAME, &obj, &row));
- if (ret < 0)
+ if (ret < 0) {
+ para_printf(&aca->pbout, "cannot find source blob %s\n", src);
goto out;
+ }
obj.data = dest;
obj.size = strlen(dest) + 1;
ret = osl(osl_update_object(table, row, BLOBCOL_NAME, &obj));
- if (ret < 0)
+ if (ret < 0) {
+ para_printf(&aca->pbout, "cannot rename blob %s to %s\n",
+ src, dest);
goto out;
- afs_event(BLOB_RENAME, NULL, table);
+ }
+ ret = afs_event(BLOB_RENAME, NULL, table);
out:
- if (ret < 0)
- PARA_NOTICE_LOG("%s\n", para_strerror(-ret));
+ return ret;
}
-static int com_mvblob(callback_function *f, struct command_context *cc)
+static int com_mvblob(afs_callback *f, struct command_context *cc)
{
if (cc->argc != 3)
return -E_MOOD_SYNTAX;
return send_option_arg_callback_request(NULL, cc->argc - 1,
- cc->argv + 1, f, NULL, NULL);
+ cc->argv + 1, f, afs_cb_result_handler, cc);
}
#define DEFINE_BLOB_COMMAND(cmd_name, table_name, cmd_prefix) \
- static void com_ ## cmd_name ## cmd_prefix ## _callback(int fd, const struct osl_object *query) \
+ static int com_ ## cmd_name ## cmd_prefix ## _callback(struct afs_callback_arg *aca) \
{ \
- return com_ ## cmd_name ## blob_callback(table_name ## _table, fd, query); \
+ return com_ ## cmd_name ## blob_callback(table_name ## _table, aca); \
} \
int com_ ## cmd_name ## cmd_prefix(struct command_context *cc) \
{ \
struct osl_object obj = {.data = &id, .size = sizeof(id)};
int ret;
- *name = NULL;
+ if (name)
+ *name = NULL;
if (!id)
return 1;
ret = osl(osl_get_row(table, BLOBCOL_ID, &obj, &row));
ret = osl(osl_get_object(table, row, BLOBCOL_NAME, &obj));
if (ret < 0)
return ret;
- *name = (char *)obj.data;
+ if (*(char *)obj.data == '\0')
+ return -E_DUMMY_ROW;
+ if (name)
+ *name = (char *)obj.data;
return 1;
}
static int table_name ## _create(const char *dir) \
{ \
table_name ## _table_desc.dir = dir; \
- return osl_create_table(&table_name ## _table_desc); \
+ return osl(osl_create_table(&table_name ## _table_desc)); \
}
static int blob_open(struct osl_table **table,
projects / paraslash.git / blobdiff