RFC Errata
Found 3 records.
Status: Verified (3)
RFC 9260, "Stream Control Transmission Protocol", June 2022
Source of RFC: tsvwg (tsv)
Errata ID: 7148
Status: Verified
Type: Technical
Publication Format(s) : TEXT, PDF, HTML
Reported By: Michael Tüxen
Date Reported: 2022-10-06
Verifier Name: Martin Duke
Date Verified: 2022-10-06
Section 3.3.3 says:
A receiver of an INIT ACK chunk with the a_rwnd value set to a value smaller than 1500 MUST discard the packet, SHOULD send a packet in response containing an ABORT chunk and using the Initiate Tag as the Verification Tag, and MUST NOT change the state of any existing association.
It should say:
If an endpoint in the COOKIE-WAIT state receives an INIT ACK chunk with the a_rwnd value set to a value smaller than 1500, it MUST destroy the TCB and SHOULD send an ABORT chunk. If such an INIT ACK chunk is received in any state other than CLOSED or COOKIE-WAIT, it SHOULD be discarded silently (see Section 5.2.3).
Notes:
The handling of a_rwnd < 1500 should be similar to the handling of OS = 0 or MIS = 0.
Errata ID: 7387
Status: Verified
Type: Technical
Publication Format(s) : TEXT, PDF, HTML
Reported By: Michael Tüxen
Date Reported: 2023-03-16
Verifier Name: Martin Duke
Date Verified: 2023-04-27
Section 5.2.4.1 says:
Endpoint A Endpoint Z
<-------------- Association is established---------------------->
Tag=Tag_A Tag=Tag_Z
<--------------------------------------------------------------->
{A crashes and restarts}
{app sets up an association with Z}
(build TCB)
INIT [I-Tag=Tag_A'
& other info] --------\
(Start T1-init timer) \
(Enter COOKIE-WAIT state) \---> (find an existing TCB,
populate TieTags if needed,
compose Cookie_Z with Tie-Tags
and other info)
/--- INIT ACK [Veri Tag=Tag_A',
/ I-Tag=Tag_Z',
(Cancel T1-init timer) <------/ Cookie_Z]
(leave original TCB in place)
COOKIE ECHO [Veri=Tag_Z',
Cookie_Z]-------\
(Start T1-init timer) \
(Enter COOKIE-ECHOED state) \---> (Find existing association,
Tie-Tags in Cookie_Z match
Tie-Tags in TCB,
Tags do not match, i.e.,
case X X M M above,
Announce Restart to ULP
and reset association).
/---- COOKIE ACK
(Cancel T1-init timer, <------/
Enter ESTABLISHED state)
{app sends 1st user data; strm 0}
DATA [TSN=Initial TSN_A
Strm=0,Seq=0 & user data]--\
(Start T3-rtx timer) \
\->
/--- SACK [TSN Ack=init TSN_A,Block=0]
(Cancel T3-rtx timer) <------/
It should say:
Endpoint A Endpoint Z
<-------------- Association is established---------------------->
Tag=Tag_A Tag=Tag_Z
<--------------------------------------------------------------->
{A crashes and restarts}
{app sets up an association with Z}
(build TCB)
INIT [I-Tag=Tag_A'
& other info] --------\
(Start T1-init timer) \
(Enter COOKIE-WAIT state) \---> (find an existing TCB,
populate TieTags if needed,
compose Cookie_Z with Tie-Tags
and other info)
/--- INIT ACK [Veri Tag=Tag_A',
/ I-Tag=Tag_Z',
(Cancel T1-init timer) <------/ Cookie_Z]
(leave original TCB in place)
COOKIE ECHO [Veri=Tag_Z',
Cookie_Z]-------\
(Start T1-cookie timer) \
(Enter COOKIE-ECHOED state) \---> (Find existing association,
Tie-Tags in Cookie_Z match
Tie-Tags in TCB,
Tags do not match, i.e.,
case X X M M above,
Announce Restart to ULP
and reset association).
/---- COOKIE ACK
(Cancel T1-cookie timer, <----/
Enter ESTABLISHED state)
{app sends 1st user data; strm 0}
DATA [TSN=Initial TSN_A
Strm=0,Seq=0 & user data]--\
(Start T3-rtx timer) \
\->
/--- SACK [TSN Ack=init TSN_A,Block=0]
(Cancel T3-rtx timer) <------/
Notes:
A packet containing an COOKIE-ECHO chunk is protected against loss by the T1-cookie timer, not the T1-init timer.
Errata ID: 7147
Status: Verified
Type: Editorial
Publication Format(s) : HTML
Reported By: Michael Tüxen
Date Reported: 2022-10-06
Verifier Name: RFC Editor
Date Verified: 2022-10-10
Section 3.2 says:
+----+--------------------------------------------------+
| 00 | Stop processing this SCTP packet and discard the |
| | unrecognized chunk and all further chunks. |
+----+--------------------------------------------------+
| 01 | Stop processing this SCTP packet, discard the |
| | unrecognized chunk and all further chunks, and |
| | report the unrecognized chunk in an ERROR chunk |
| | using the 'Unrecognized Chunk Type' error cause. |
+----+--------------------------------------------------+
| 10 | Skip this chunk and continue processing. |
+----+--------------------------------------------------+
| 11 | Skip this chunk and continue processing, but |
| | report it in an ERROR chunk using the |
| | 'Unrecognized Chunk Type' error cause. |
+----+--------------------------------------------------+
It should say:
+----+--------------------------------------------------+
| 00 | Stop processing this SCTP packet and discard the |
| | unrecognized chunk and all further chunks. |
+----+--------------------------------------------------+
| 01 | Stop processing this SCTP packet, discard the |
| | unrecognized chunk and all further chunks, and |
| | report the unrecognized chunk in an ERROR chunk |
| | using the "Unrecognized Chunk Type" error cause. |
+----+--------------------------------------------------+
| 10 | Skip this chunk and continue processing. |
+----+--------------------------------------------------+
| 11 | Skip this chunk and continue processing, but |
| | report it in an ERROR chunk using the |
| | "Unrecognized Chunk Type" error cause. |
+----+--------------------------------------------------+
Notes:
In the rest of the document, error cause names are enclosed in double quotes, not in single quotes.