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-rw-r--r--core/legacynet/core.c101
1 files changed, 101 insertions, 0 deletions
diff --git a/core/legacynet/core.c b/core/legacynet/core.c
index eacb4927..24a670e0 100644
--- a/core/legacynet/core.c
+++ b/core/legacynet/core.c
@@ -220,3 +220,104 @@ int reset_pxe(void)
return err;
}
+
+#if GPXE
+
+static void gpxe_close_file(struct inode *inode)
+{
+ struct pxe_pvt_inode *socket = PVT(inode);
+ static __lowmem struct s_PXENV_FILE_CLOSE file_close;
+
+ file_close.FileHandle = socket->tftp_remoteport;
+ pxe_call(PXENV_FILE_CLOSE, &file_close);
+}
+
+/**
+ * Get a fresh packet from a gPXE socket
+ * @param: inode -> Inode pointer
+ *
+ */
+static void gpxe_get_packet(struct inode *inode)
+{
+ struct pxe_pvt_inode *socket = PVT(inode);
+ static __lowmem struct s_PXENV_FILE_READ file_read;
+ int err;
+
+ while (1) {
+ file_read.FileHandle = socket->tftp_remoteport;
+ file_read.Buffer = FAR_PTR(packet_buf);
+ file_read.BufferSize = PKTBUF_SIZE;
+ err = pxe_call(PXENV_FILE_READ, &file_read);
+ if (!err) /* successed */
+ break;
+
+ if (file_read.Status != PXENV_STATUS_TFTP_OPEN)
+ kaboom();
+ }
+
+ memcpy(socket->tftp_pktbuf, packet_buf, file_read.BufferSize);
+
+ socket->tftp_dataptr = socket->tftp_pktbuf;
+ socket->tftp_bytesleft = file_read.BufferSize;
+ socket->tftp_filepos += file_read.BufferSize;
+
+ if (socket->tftp_bytesleft == 0)
+ inode->size = socket->tftp_filepos;
+
+ /* if we're done here, close the file */
+ if (inode->size > socket->tftp_filepos)
+ return;
+
+ /* Got EOF, close it */
+ socket->tftp_goteof = 1;
+ gpxe_close_file(inode);
+}
+
+const struct pxe_conn_ops gpxe_conn_ops = {
+ .fill_buffer = gpxe_get_packet,
+ .close = gpxe_close_file,
+};
+
+/**
+ * Open a url using gpxe
+ *
+ * @param:inode, the inode to store our state in
+ * @param:url, the url we want to open
+ *
+ * @out: open_file_t structure, stores in file->open_file
+ * @out: the lenght of this file, stores in file->file_len
+ *
+ */
+void gpxe_open(struct inode *inode, const char *url)
+{
+ static __lowmem struct s_PXENV_FILE_OPEN file_open;
+ static __lowmem struct s_PXENV_GET_FILE_SIZE file_size;
+ static __lowmem char lowurl[2*FILENAME_MAX];
+ struct pxe_pvt_inode *socket = PVT(inode);
+ int err;
+
+ socket->tftp_pktbuf = malloc(PKTBUF_SIZE);
+ if (!socket->tftp_pktbuf)
+ return;
+
+ snprintf(lowurl, sizeof lowurl, "%s", url);
+ file_open.Status = PXENV_STATUS_BAD_FUNC;
+ file_open.FileName = FAR_PTR(lowurl);
+ err = pxe_call(PXENV_FILE_OPEN, &file_open);
+ if (err)
+ return;
+
+
+ socket->ops = &gpxe_conn_ops;
+ socket->tftp_remoteport = file_open.FileHandle;
+ file_size.Status = PXENV_STATUS_BAD_FUNC;
+ file_size.FileHandle = file_open.FileHandle;
+ err = pxe_call(PXENV_GET_FILE_SIZE, &file_size);
+ if (err) {
+ inode->size = -1; /* fallback size; this shouldn't be an error */
+ } else {
+ inode->size = file_size.FileSize;
+ }
+}
+
+#endif /* GPXE */