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cb2359dca0
This commit introduces robust validation for the F-TEID information element in the PFCP message handling. Previously, malformed F-TEID values (such as a zero length, zero TEID, or a TEID exceeding the pool size) could lead to an assertion failure and crash the UPF. The changes ensure that: - The F-TEID length is greater than zero, confirming the IE is present. - The TEID is a non-zero value, as a valid TEID must be positive. - The TEID does not exceed the allowed pool size (max_ue * 4 * 16). If any of these conditions are not met, an error is logged with the F-TEID length and TEID value, and the function returns an error code (OGS_PFCP_CAUSE_MANDATORY_IE_INCORRECT), preventing further processing of the malformed message.
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