nvs_util: Fix to support write of multiple singlepage big blob data
Closes https://github.com/espressif/esp-idf/issues/3011
(cherry picked from commit 60b5cdde20
)
This commit is contained in:
parent
286202caa3
commit
86052eec78
2 changed files with 86 additions and 97 deletions
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@ -39,6 +39,8 @@ VERSION2_PRINT = "v2 - Multipage Blob Support Enabled"
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""" Class for standard NVS page structure """
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class Page(object):
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PAGE_PARAMS = {
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"max_size": 4096,
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@ -68,8 +70,8 @@ class Page(object):
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CHUNK_ANY = 0xFF
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ACTIVE = 0xFFFFFFFE
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FULL = 0xFFFFFFFC
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VERSION1=0xFF
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VERSION2=0xFE
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VERSION1 = 0xFF
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VERSION2 = 0xFE
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def __init__(self, page_num, is_rsrv_page=False):
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self.entry_num = 0
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@ -77,7 +79,7 @@ class Page(object):
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self.encr_key = None
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self.bitmap_array = array.array('B')
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self.version = Page.VERSION2
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self.page_buf = bytearray(b'\xff')*Page.PAGE_PARAMS["max_size"]
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self.page_buf = bytearray(b'\xff') * Page.PAGE_PARAMS["max_size"]
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if not is_rsrv_page:
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self.bitmap_array = self.create_bitmap_array()
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self.set_header(page_num)
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@ -86,7 +88,7 @@ class Page(object):
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global page_header
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# set page state to active
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page_header= bytearray(b'\xff') *32
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page_header = bytearray(b'\xff') * 32
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page_state_active_seq = Page.ACTIVE
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struct.pack_into('<I', page_header, 0, page_state_active_seq)
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# set page sequence number
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@ -102,26 +104,23 @@ class Page(object):
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struct.pack_into('<I', page_header, 28, crc & 0xFFFFFFFF)
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self.page_buf[0:len(page_header)] = page_header
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def create_bitmap_array(self):
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bitarray = array.array('B')
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charsize = 32 # bitmaparray has 256 bits, hence 32 bytes
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fill = 255 # Fill all 8 bits with 1's
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charsize = 32 # bitmaparray has 256 bits, hence 32 bytes
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fill = 255 # Fill all 8 bits with 1's
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bitarray.extend((fill,) * charsize)
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return bitarray
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def write_bitmaparray(self):
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bitnum = self.entry_num * 2
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byte_idx = bitnum // 8 # Find byte index in the array
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bit_offset = bitnum & 7 # Find bit offset in given byte index
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byte_idx = bitnum // 8 # Find byte index in the array
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bit_offset = bitnum & 7 # Find bit offset in given byte index
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mask = ~(1 << bit_offset)
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self.bitmap_array[byte_idx] &= mask
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start_idx = Page.BITMAPARRAY_OFFSET
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end_idx = Page.BITMAPARRAY_OFFSET + Page.BITMAPARRAY_SIZE_IN_BYTES
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self.page_buf[start_idx:end_idx] = self.bitmap_array
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def encrypt_entry(self, data_arr, tweak_arr, encr_key):
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# Encrypt 32 bytes of data using AES-XTS encryption
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backend = default_backend()
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@ -134,28 +133,25 @@ class Page(object):
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return encrypted_data
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def reverse_hexbytes(self, addr_tmp):
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addr = []
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reversed_bytes = ""
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for i in range(0, len(addr_tmp), 2):
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addr.append(addr_tmp[i:i+2])
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addr.append(addr_tmp[i:i + 2])
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reversed_bytes = "".join(reversed(addr))
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return reversed_bytes
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def encrypt_data(self, data_input, no_of_entries, nvs_obj):
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# Set values needed for encryption and encrypt data byte wise
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encr_data_to_write = bytearray()
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data_len_needed = 64 #in hex
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tweak_len_needed = 32 #in hex
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data_len_needed = 64 # in hex
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tweak_len_needed = 32 # in hex
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init_tweak_val = '0'
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init_data_val = 'f'
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tweak_tmp = ''
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encr_key_input = None
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# Extract encryption key and tweak key from given key input
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if len(self.encr_key) == key_len_needed:
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encr_key_input = self.encr_key
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@ -207,7 +203,6 @@ class Page(object):
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return encr_data_to_write
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def write_entry_to_buf(self, data, entrycount,nvs_obj):
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encr_data = bytearray()
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@ -226,7 +221,6 @@ class Page(object):
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self.write_bitmaparray()
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self.entry_num += 1
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def set_crc_header(self, entry_struct):
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crc_data = bytearray(b'28')
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crc_data[0:4] = entry_struct[0:4]
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@ -236,7 +230,6 @@ class Page(object):
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struct.pack_into('<I', entry_struct, 4, crc & 0xFFFFFFFF)
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return entry_struct
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def write_varlen_binary_data(self, entry_struct, ns_index, key, data, data_size, total_entry_count, encoding, nvs_obj):
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chunk_start = 0
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chunk_count = 0
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@ -250,7 +243,7 @@ class Page(object):
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# Get the size available in current page
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tailroom = (Page.PAGE_PARAMS["max_entries"] - self.entry_num - 1) * Page.SINGLE_ENTRY_SIZE
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assert tailroom >=0, "Page overflow!!"
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assert tailroom >= 0, "Page overflow!!"
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# Split the binary data into two and store a chunk of available size onto curr page
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if tailroom < remaining_size:
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@ -266,7 +259,7 @@ class Page(object):
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# Calculate no. of entries data chunk will require
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datachunk_rounded_size = (chunk_size + 31) & ~31
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datachunk_entry_count = datachunk_rounded_size // 32
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datachunk_total_entry_count = datachunk_entry_count + 1 # +1 for the entry header
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datachunk_total_entry_count = datachunk_entry_count + 1 # +1 for the entry header
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# Set Span
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entry_struct[2] = datachunk_total_entry_count
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@ -276,7 +269,7 @@ class Page(object):
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entry_struct[3] = chunk_index
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# Set data chunk
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data_chunk = data[offset:offset + chunk_size]
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data_chunk = data[offset:offset + chunk_size]
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# Compute CRC of data chunk
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struct.pack_into('<H', entry_struct, 24, chunk_size)
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@ -306,11 +299,10 @@ class Page(object):
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offset = offset + chunk_size
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# All chunks are stored, now store the index
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if not remaining_size:
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# Initialise data field to 0xff
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data_array = bytearray(b'\xff')*8
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data_array = bytearray(b'\xff') * 8
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entry_struct[24:32] = data_array
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# change type of data to BLOB_IDX
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@ -336,7 +328,6 @@ class Page(object):
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return entry_struct
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def write_single_page_entry(self, entry_struct, data, datalen, data_entry_count, nvs_obj):
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# compute CRC of data
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struct.pack_into('<H', entry_struct, 24, datalen)
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@ -355,7 +346,6 @@ class Page(object):
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# write actual data
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self.write_entry_to_buf(data, data_entry_count, nvs_obj)
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"""
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Low-level function to write variable length data into page buffer. Data should be formatted
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according to encoding specified.
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@ -364,32 +354,27 @@ class Page(object):
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# Set size of data
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datalen = len(data)
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if version == Page.VERSION1:
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if datalen > Page.PAGE_PARAMS["max_old_blob_size"]:
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if datalen > Page.PAGE_PARAMS["max_old_blob_size"]:
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if version == Page.VERSION1:
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raise InputError("Version %s\n%s: Size exceeds max allowed length." % (VERSION1_PRINT,key))
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if version == Page.VERSION2:
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if encoding == "string":
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if datalen > Page.PAGE_PARAMS["max_new_blob_size"]:
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else:
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if encoding == "string":
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raise InputError("Version %s\n%s: Size exceeds max allowed length." % (VERSION2_PRINT,key))
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# Calculate no. of entries data will require
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rounded_size = (datalen + 31) & ~31
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data_entry_count = rounded_size // 32
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total_entry_count = data_entry_count + 1 # +1 for the entry header
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total_entry_count = data_entry_count + 1 # +1 for the entry header
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# Check if page is already full and new page is needed to be created right away
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if version == Page.VERSION1:
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if encoding in ["string", "hex2bin", "binary", "base64"]:
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if (self.entry_num + total_entry_count) >= Page.PAGE_PARAMS["max_entries"]:
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raise PageFullError()
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else:
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if encoding == "string":
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if (self.entry_num + total_entry_count) >= Page.PAGE_PARAMS["max_entries"]:
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raise PageFullError()
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if self.entry_num >= Page.PAGE_PARAMS["max_entries"]:
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raise PageFullError()
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elif (self.entry_num + total_entry_count) >= Page.PAGE_PARAMS["max_entries"]:
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if not (version == Page.VERSION2 and encoding in ["hex2bin", "binary", "base64"]):
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raise PageFullError()
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# Entry header
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entry_struct = bytearray(b'\xff')*32
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entry_struct = bytearray(b'\xff') * 32
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# Set Namespace Index
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entry_struct[0] = ns_index
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# Set Span
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@ -414,27 +399,25 @@ class Page(object):
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entry_struct[1] = Page.BLOB
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if version == Page.VERSION2 and (encoding in ["hex2bin", "binary", "base64"]):
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entry_struct = self.write_varlen_binary_data(entry_struct,ns_index,key,data,\
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datalen,total_entry_count, encoding, nvs_obj)
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entry_struct = self.write_varlen_binary_data(entry_struct,ns_index,key,data,
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datalen,total_entry_count, encoding, nvs_obj)
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else:
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self.write_single_page_entry(entry_struct, data, datalen, data_entry_count, nvs_obj)
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""" Low-level function to write data of primitive type into page buffer. """
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def write_primitive_data(self, key, data, encoding, ns_index,nvs_obj):
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# Check if entry exceeds max number of entries allowed per page
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if self.entry_num >= Page.PAGE_PARAMS["max_entries"]:
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raise PageFullError()
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entry_struct = bytearray(b'\xff')*32
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entry_struct[0] = ns_index # namespace index
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entry_struct[2] = 0x01 # Span
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entry_struct = bytearray(b'\xff') * 32
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entry_struct[0] = ns_index # namespace index
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entry_struct[2] = 0x01 # Span
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chunk_index = Page.CHUNK_ANY
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entry_struct[3] = chunk_index
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# write key
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key_array = b'\x00' *16
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key_array = b'\x00' * 16
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entry_struct[8:24] = key_array
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entry_struct[8:8 + len(key)] = key.encode()
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@ -469,9 +452,13 @@ class Page(object):
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def get_data(self):
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return self.page_buf
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"""
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NVS class encapsulates all NVS specific operations to create a binary with given key-value pairs. Binary can later be flashed onto device via a flashing utility.
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NVS class encapsulates all NVS specific operations to create a binary with given key-value pairs.
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Binary can later be flashed onto device via a flashing utility.
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"""
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class NVS(object):
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def __init__(self, fout, input_size):
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self.size = input_size
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@ -485,11 +472,11 @@ class NVS(object):
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return self
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def __exit__(self, exc_type, exc_value, traceback):
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if exc_type == None and exc_value == None:
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if exc_type is None and exc_value is None:
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# Create pages for remaining available size
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while True:
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try:
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new_page = self.create_new_page()
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self.create_new_page()
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except InsufficientSizeError:
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self.size = None
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# Creating the last reserved page
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data += page.get_data()
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return data
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class PageFullError(RuntimeError):
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"""
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Represents error when current page doesn't have sufficient entries left
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to accommodate current request
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"""
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def __init__(self):
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super(PageFullError, self).__init__()
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super(PageFullError, self).__init__()
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class InputError(RuntimeError):
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"""
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def __init__(self, e):
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super(InputError, self).__init__(e)
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class InsufficientSizeError(RuntimeError):
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"""
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Represents error when NVS Partition size given is insufficient
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@ -600,6 +590,7 @@ class InsufficientSizeError(RuntimeError):
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def __init__(self, e):
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super(InsufficientSizeError, self).__init__(e)
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def nvs_open(result_obj, input_size):
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""" Wrapper to create and NVS class object. This object can later be used to set key-value pairs
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"""
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return NVS(result_obj, input_size)
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def write_entry(nvs_instance, key, datatype, encoding, value):
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""" Wrapper to set key-value pair in NVS format
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@ -622,7 +614,7 @@ def write_entry(nvs_instance, key, datatype, encoding, value):
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if datatype == "file":
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abs_file_path = value
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if os.path.isabs(value) == False:
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if os.path.isabs(value) is False:
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script_dir = os.path.dirname(__file__)
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abs_file_path = os.path.join(script_dir, value)
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else:
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nvs_instance.write_entry(key, value, encoding)
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def nvs_close(nvs_instance):
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""" Wrapper to finish writing to NVS and write data to file/stream object provided to nvs_open method
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nvs_instance.__exit__(None, None, None)
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def check_input_args(input_filename=None, output_filename=None, input_part_size=None, is_key_gen=None,\
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encrypt_mode=None, key_file=None, version_no=None, print_arg_str=None, print_encrypt_arg_str=None):
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def check_input_args(input_filename=None, output_filename=None, input_part_size=None, is_key_gen=None,
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encrypt_mode=None, key_file=None, version_no=None, print_arg_str=None, print_encrypt_arg_str=None):
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global version, is_encrypt_data, input_size, key_gen
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elif is_encrypt_data.lower() == 'false':
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is_encrypt_data = False
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if version == 'v1':
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version = Page.VERSION1
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elif version == 'v2':
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elif key_gen.lower() == 'false':
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key_gen = False
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if key_gen:
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if all(arg is not None for arg in [input_filename, output_filename, input_size]):
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if not is_encrypt_data:
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@ -681,7 +672,6 @@ encrypt_mode=None, key_file=None, version_no=None, print_arg_str=None, print_enc
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if not all(arg is not None for arg in [input_filename, output_filename]):
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sys.exit(print_arg_str)
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if is_encrypt_data and not key_gen and not key_file:
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sys.exit(print_encrypt_arg_str)
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@ -695,7 +685,7 @@ encrypt_mode=None, key_file=None, version_no=None, print_arg_str=None, print_enc
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# Set size
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input_size = int(input_size, 0)
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if input_size % 4096 !=0:
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if input_size % 4096 != 0:
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sys.exit("Size of partition must be multiple of 4096")
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# Update size as a page needs to be reserved of size 4KB
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sys.exit("Minimum NVS partition size needed is 0x3000 bytes.")
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def nvs_part_gen(input_filename=None, output_filename=None, input_part_size=None, is_key_gen=None, encrypt_mode=None, key_file=None, version_no=None):
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""" Wrapper to generate nvs partition binary
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@ -749,9 +737,8 @@ def nvs_part_gen(input_filename=None, output_filename=None, input_part_size=None
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input_file.close()
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output_file.close()
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if key_gen:
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keys_page_buf = bytearray(b'\xff')*Page.PAGE_PARAMS["max_size"]
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keys_page_buf = bytearray(b'\xff') * Page.PAGE_PARAMS["max_size"]
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key_bytes = bytearray()
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if len(key_input) == key_len_needed:
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key_bytes = key_input
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@ -773,44 +760,44 @@ def main():
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parser = argparse.ArgumentParser(description="ESP32 NVS partition generation utility")
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nvs_part_gen_group = parser.add_argument_group('To generate NVS partition')
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nvs_part_gen_group.add_argument(
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"--input",
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help="Path to CSV file to parse.",
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default=None)
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"--input",
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help="Path to CSV file to parse.",
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default=None)
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nvs_part_gen_group.add_argument(
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"--output",
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help='Path to output converted binary file.',
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default=None)
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"--output",
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help='Path to output converted binary file.',
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default=None)
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nvs_part_gen_group.add_argument(
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"--size",
|
||||
help='Size of NVS Partition in bytes (must be multiple of 4096)')
|
||||
"--size",
|
||||
help='Size of NVS Partition in bytes (must be multiple of 4096)')
|
||||
|
||||
nvs_part_gen_group.add_argument(
|
||||
"--version",
|
||||
help='Set version. Default: v2',
|
||||
choices=['v1','v2'],
|
||||
default='v2',
|
||||
type=str.lower)
|
||||
"--version",
|
||||
help='Set version. Default: v2',
|
||||
choices=['v1','v2'],
|
||||
default='v2',
|
||||
type=str.lower)
|
||||
|
||||
keygen_action=nvs_part_gen_group.add_argument(
|
||||
"--keygen",
|
||||
help='Generate keys for encryption. Creates an `encryption_keys.bin` file. Default: false',
|
||||
choices=['true','false'],
|
||||
default= 'false',
|
||||
type=str.lower)
|
||||
keygen_action = nvs_part_gen_group.add_argument(
|
||||
"--keygen",
|
||||
help='Generate keys for encryption. Creates an `encryption_keys.bin` file. Default: false',
|
||||
choices=['true','false'],
|
||||
default='false',
|
||||
type=str.lower)
|
||||
|
||||
nvs_part_gen_group.add_argument(
|
||||
"--encrypt",
|
||||
help='Set encryption mode. Default: false',
|
||||
choices=['true','false'],
|
||||
default='false',
|
||||
type=str.lower)
|
||||
"--encrypt",
|
||||
help='Set encryption mode. Default: false',
|
||||
choices=['true','false'],
|
||||
default='false',
|
||||
type=str.lower)
|
||||
|
||||
nvs_part_gen_group.add_argument(
|
||||
"--keyfile",
|
||||
help='File having key for encryption (Applicable only if encryption mode is true)',
|
||||
default = None)
|
||||
"--keyfile",
|
||||
help='File having key for encryption (Applicable only if encryption mode is true)',
|
||||
default=None)
|
||||
|
||||
key_gen_group = parser.add_argument_group('To generate encryption keys')
|
||||
key_gen_group._group_actions.append(keygen_action)
|
||||
|
@ -824,13 +811,13 @@ def main():
|
|||
is_encrypt_data = args.encrypt
|
||||
key_file = args.keyfile
|
||||
|
||||
print_arg_str = "Invalid.\nTo generate nvs partition binary --input, --output and --size arguments are mandatory.\nTo generate encryption keys --keygen argument is mandatory."
|
||||
print_arg_str = "Invalid.\nTo generate nvs partition binary --input, --output and --size arguments are mandatory.\n \
|
||||
To generate encryption keys --keygen argument is mandatory."
|
||||
print_encrypt_arg_str = "Missing parameter. Enter --keyfile or --keygen."
|
||||
|
||||
check_input_args(input_filename,output_filename, part_size, is_key_gen, is_encrypt_data, key_file, version_no, print_arg_str, print_encrypt_arg_str)
|
||||
nvs_part_gen(input_filename, output_filename, part_size, is_key_gen, is_encrypt_data, key_file, version_no)
|
||||
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
|
|
|
@ -2,8 +2,10 @@
|
|||
|
||||
# Regexp for matching job names which are incompatible with Python 3
|
||||
# - assign_test, nvs_compatible_test, IT - auto_test_script causes the incompatibility
|
||||
# - UT_009_ - RS485 multi-device test is not started properly
|
||||
py3_incomp='assign_test|nvs_compatible_test|IT|UT_009_'
|
||||
# - UT_009_ - multi-device tests are not compatible
|
||||
# - UT_014_ - multi-device tests are not compatible
|
||||
# - UT_017_ - multi-device tests are not compatible
|
||||
py3_incomp='assign_test|nvs_compatible_test|IT|UT_009_|UT_013_|UT_014_|UT_017_'
|
||||
|
||||
if [ -z ${PYTHON_VER+x} ] || [[ $CI_JOB_NAME =~ $py3_incomp ]]; then
|
||||
# Use this version of the Python interpreter if it was not defined before or
|
||||
|
|
Loading…
Reference in a new issue