diff options
Diffstat (limited to 'src/guestfs-actions.c')
| -rw-r--r-- | src/guestfs-actions.c | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/src/guestfs-actions.c b/src/guestfs-actions.c index b34c8017..94a08629 100644 --- a/src/guestfs-actions.c +++ b/src/guestfs-actions.c @@ -11649,3 +11649,189 @@ int64_t guestfs_du (guestfs_h *g, return ctx.ret.sizekb; } +struct initrd_list_ctx { + /* This flag is set by the callbacks, so we know we've done + * the callbacks as expected, and in the right sequence. + * 0 = not called, 1 = reply_cb called. + */ + int cb_sequence; + struct guestfs_message_header hdr; + struct guestfs_message_error err; + struct guestfs_initrd_list_ret ret; +}; + +static void initrd_list_reply_cb (guestfs_h *g, void *data, XDR *xdr) +{ + guestfs_main_loop *ml = guestfs_get_main_loop (g); + struct initrd_list_ctx *ctx = (struct initrd_list_ctx *) data; + + /* This should definitely not happen. */ + if (ctx->cb_sequence != 0) { + ctx->cb_sequence = 9999; + error (g, "%s: internal error: reply callback called twice", "guestfs_initrd_list"); + return; + } + + ml->main_loop_quit (ml, g); + + if (!xdr_guestfs_message_header (xdr, &ctx->hdr)) { + error (g, "%s: failed to parse reply header", "guestfs_initrd_list"); + return; + } + if (ctx->hdr.status == GUESTFS_STATUS_ERROR) { + if (!xdr_guestfs_message_error (xdr, &ctx->err)) { + error (g, "%s: failed to parse reply error", "guestfs_initrd_list"); + return; + } + goto done; + } + if (!xdr_guestfs_initrd_list_ret (xdr, &ctx->ret)) { + error (g, "%s: failed to parse reply", "guestfs_initrd_list"); + return; + } + done: + ctx->cb_sequence = 1; +} + +char **guestfs_initrd_list (guestfs_h *g, + const char *path) +{ + struct guestfs_initrd_list_args args; + struct initrd_list_ctx ctx; + guestfs_main_loop *ml = guestfs_get_main_loop (g); + int serial; + + if (check_state (g, "guestfs_initrd_list") == -1) return NULL; + guestfs_set_busy (g); + + memset (&ctx, 0, sizeof ctx); + + args.path = (char *) path; + serial = guestfs__send_sync (g, GUESTFS_PROC_INITRD_LIST, + (xdrproc_t) xdr_guestfs_initrd_list_args, (char *) &args); + if (serial == -1) { + guestfs_end_busy (g); + return NULL; + } + + guestfs__switch_to_receiving (g); + ctx.cb_sequence = 0; + guestfs_set_reply_callback (g, initrd_list_reply_cb, &ctx); + (void) ml->main_loop_run (ml, g); + guestfs_set_reply_callback (g, NULL, NULL); + if (ctx.cb_sequence != 1) { + error (g, "%s reply failed, see earlier error messages", "guestfs_initrd_list"); + guestfs_end_busy (g); + return NULL; + } + + if (check_reply_header (g, &ctx.hdr, GUESTFS_PROC_INITRD_LIST, serial) == -1) { + guestfs_end_busy (g); + return NULL; + } + + if (ctx.hdr.status == GUESTFS_STATUS_ERROR) { + error (g, "%s", ctx.err.error_message); + free (ctx.err.error_message); + guestfs_end_busy (g); + return NULL; + } + + guestfs_end_busy (g); + /* caller will free this, but we need to add a NULL entry */ + ctx.ret.filenames.filenames_val = + safe_realloc (g, ctx.ret.filenames.filenames_val, + sizeof (char *) * (ctx.ret.filenames.filenames_len + 1)); + ctx.ret.filenames.filenames_val[ctx.ret.filenames.filenames_len] = NULL; + return ctx.ret.filenames.filenames_val; +} + +struct mount_loop_ctx { + /* This flag is set by the callbacks, so we know we've done + * the callbacks as expected, and in the right sequence. + * 0 = not called, 1 = reply_cb called. + */ + int cb_sequence; + struct guestfs_message_header hdr; + struct guestfs_message_error err; +}; + +static void mount_loop_reply_cb (guestfs_h *g, void *data, XDR *xdr) +{ + guestfs_main_loop *ml = guestfs_get_main_loop (g); + struct mount_loop_ctx *ctx = (struct mount_loop_ctx *) data; + + /* This should definitely not happen. */ + if (ctx->cb_sequence != 0) { + ctx->cb_sequence = 9999; + error (g, "%s: internal error: reply callback called twice", "guestfs_mount_loop"); + return; + } + + ml->main_loop_quit (ml, g); + + if (!xdr_guestfs_message_header (xdr, &ctx->hdr)) { + error (g, "%s: failed to parse reply header", "guestfs_mount_loop"); + return; + } + if (ctx->hdr.status == GUESTFS_STATUS_ERROR) { + if (!xdr_guestfs_message_error (xdr, &ctx->err)) { + error (g, "%s: failed to parse reply error", "guestfs_mount_loop"); + return; + } + goto done; + } + done: + ctx->cb_sequence = 1; +} + +int guestfs_mount_loop (guestfs_h *g, + const char *file, + const char *mountpoint) +{ + struct guestfs_mount_loop_args args; + struct mount_loop_ctx ctx; + guestfs_main_loop *ml = guestfs_get_main_loop (g); + int serial; + + if (check_state (g, "guestfs_mount_loop") == -1) return -1; + guestfs_set_busy (g); + + memset (&ctx, 0, sizeof ctx); + + args.file = (char *) file; + args.mountpoint = (char *) mountpoint; + serial = guestfs__send_sync (g, GUESTFS_PROC_MOUNT_LOOP, + (xdrproc_t) xdr_guestfs_mount_loop_args, (char *) &args); + if (serial == -1) { + guestfs_end_busy (g); + return -1; + } + + guestfs__switch_to_receiving (g); + ctx.cb_sequence = 0; + guestfs_set_reply_callback (g, mount_loop_reply_cb, &ctx); + (void) ml->main_loop_run (ml, g); + guestfs_set_reply_callback (g, NULL, NULL); + if (ctx.cb_sequence != 1) { + error (g, "%s reply failed, see earlier error messages", "guestfs_mount_loop"); + guestfs_end_busy (g); + return -1; + } + + if (check_reply_header (g, &ctx.hdr, GUESTFS_PROC_MOUNT_LOOP, serial) == -1) { + guestfs_end_busy (g); + return -1; + } + + if (ctx.hdr.status == GUESTFS_STATUS_ERROR) { + error (g, "%s", ctx.err.error_message); + free (ctx.err.error_message); + guestfs_end_busy (g); + return -1; + } + + guestfs_end_busy (g); + return 0; +} + |