diff options
Diffstat (limited to 'g13/sh-cmd.c')
| -rw-r--r-- | g13/sh-cmd.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/g13/sh-cmd.c b/g13/sh-cmd.c index fe596f460..e00bb774c 100644 --- a/g13/sh-cmd.c +++ b/g13/sh-cmd.c @@ -157,6 +157,82 @@ reset_notify (assuan_context_t ctx, char *line) } +static const char hlp_finddevice[] = + "FINDDEVICE <name>\n" + "\n" + "Find the device matching NAME. NAME be any identifier from\n" + "g13tab permissable for the user. The corresponding block\n" + "device is retruned using a status line."; +static gpg_error_t +cmd_finddevice (assuan_context_t ctx, char *line) +{ + ctrl_t ctrl = assuan_get_pointer (ctx); + gpg_error_t err = 0; + tab_item_t ti; + const char *s; + const char *name; + + name = skip_options (line); + + /* Are we allowed to use the given device? We check several names: + * 1. The full block device + * 2. The label + * 3. The final part of the block device if NAME does not have a slash. + * 4. The mountpoint + */ + for (ti=ctrl->client.tab; ti; ti = ti->next) + if (!strcmp (name, ti->blockdev)) + break; + if (!ti) + { + for (ti=ctrl->client.tab; ti; ti = ti->next) + if (ti->label && !strcmp (name, ti->label)) + break; + } + if (!ti && !strchr (name, '/')) + { + for (ti=ctrl->client.tab; ti; ti = ti->next) + { + s = strrchr (ti->blockdev, '/'); + if (s && s[1] && !strcmp (name, s+1)) + break; + } + } + if (!ti) + { + for (ti=ctrl->client.tab; ti; ti = ti->next) + if (ti->mountpoint && !strcmp (name, ti->mountpoint)) + break; + } + + if (!ti) + { + err = set_error (GPG_ERR_NOT_FOUND, "device not configured for user"); + goto leave; + } + + /* Check whether we have permissions to open the device. */ + { + estream_t fp = es_fopen (ti->blockdev, "rb"); + if (!fp) + { + err = gpg_error_from_syserror (); + log_error ("error opening '%s': %s\n", + ti->blockdev, gpg_strerror (err)); + goto leave; + } + es_fclose (fp); + } + + err = g13_status (ctrl, STATUS_BLOCKDEV, ti->blockdev, NULL); + if (err) + return err; + + leave: + return leave_cmd (ctx, err); +} + + static const char hlp_device[] = "DEVICE <name>\n" "\n" @@ -588,6 +664,7 @@ register_commands (assuan_context_t ctx, int fail_all) assuan_handler_t handler; const char * const help; } table[] = { + { "FINDDEVICE", cmd_finddevice, hlp_finddevice }, { "DEVICE", cmd_device, hlp_device }, { "CREATE", cmd_create, hlp_create }, { "MOUNT", cmd_mount, hlp_mount }, |