Send OnSessionEstablishmentError if pairing in progress during shutdown

[s-mcclain]

Problem

What is being fixed?

• Fix SIGABRT due to pairing being in-progress when Shutdown() is called

Change overview

During Commissioner's Shutdown, if session setup is in-progress, call an OnSessionEstablishmentError to clean up the ContextExchange prior to continuing shutdown. Otherwise, the pairing exchange will remain inside ExchangeMgr's mContextPool and signal SIGABRT.

Testing

How was this tested? (at least one bullet point required)

• Manual testing, using ESP32, tested manually, calling Shutdown() during session establishment with no devices in pairing mode present.

[github-actions]

PR #15282: Size comparison from 72896fc to ed5d3b0

Increases (1 build for linux)

platform	target	config	section	72896fc	ed5d3b0	change	% change
linux	chip-tool-ipv6only	arm64	(read only)	8332420	8332580	160	0.0
			.rodata	435804	435868	64	0.0
			.text	7133924	7134020	96	0.0

Full report (34 builds for cyw30739, efr32, esp32, k32w, linux, mbed, nrfconnect, p6, qpg, telink)

platform	target	config	section	72896fc	ed5d3b0	change	% change
cyw30739	light	cyw930739m2evb_01	(read/write)	597326	597326	0	0.0
			.app_xip_area	501244	501244	0	0.0
			.bss	78780	78780	0	0.0
			.data	644	644	0	0.0
			.rodata	0	0	0	0.0
			.text	0	0	0	0.0
	lock	cyw930739m2evb_01	(read/write)	555266	555266	0	0.0
			.app_xip_area	460752	460752	0	0.0
			.bss	77252	77252	0	0.0
			.data	608	608	0	0.0
			.rodata	0	0	0	0.0
			.text	0	0	0	0.0
	ota-requestor	cyw930739m2evb_01	(read/write)	576378	576378	0	0.0
			.app_xip_area	472432	472432	0	0.0
			.bss	86356	86356	0	0.0
			.data	552	552	0	0.0
			.rodata	0	0	0	0.0
			.text	112	112	0	0.0
efr32	lighting-app	BRD4161A	(read only)	914204	914204	0	0.0
			(read/write)	129524	129524	0	0.0
			.bss	127488	127488	0	0.0
			.data	2036	2036	0	0.0
			.text	914196	914196	0	0.0
		BRD4161A+rpc	(read only)	942896	942896	0	0.0
			(read/write)	146440	146440	0	0.0
			.bss	144264	144264	0	0.0
			.data	2176	2176	0	0.0
			.text	942888	942888	0	0.0
	window-app	BRD4161A	(read only)	848064	848064	0	0.0
			(read/write)	127416	127416	0	0.0
			.bss	125512	125512	0	0.0
			.data	1904	1904	0	0.0
			.text	848056	848056	0	0.0
esp32	all-clusters-app	c3devkit	(read only)	947660	947660	0	0.0
			(read/write)	1401170	1401170	0	0.0
			.dram0.bss	68296	68296	0	0.0
			.dram0.data	14268	14268	0	0.0
			.flash.rodata	199704	199704	0	0.0
			.flash.text	947660	947660	0	0.0
			.iram0.text	62056	62056	0	0.0
		m5stack	(read only)	997411	997411	0	0.0
			(read/write)	466412	466412	0	0.0
			.dram0.bss	73432	73432	0	0.0
			.dram0.data	34064	34064	0	0.0
			.flash.rodata	226788	226788	0	0.0
			.flash.text	992027	992027	0	0.0
			.iram0.text	123399	123399	0	0.0
k32w	light	k32w061+release	(read/write)	691332	691332	0	0.0
			.bss	78384	78384	0	0.0
			.data	1912	1912	0	0.0
			.text	605236	605236	0	0.0
	lock	k32w061+release	(read/write)	693964	693964	0	0.0
			.bss	78600	78600	0	0.0
			.data	1952	1952	0	0.0
			.text	607612	607612	0	0.0
linux	chip-tool-ipv6only	arm64	(read only)	8332420	8332580	160	0.0
			(read/write)	362609	362609	0	0.0
			.bss	58961	58961	0	0.0
			.data	1216	1216	0	0.0
			.data.rel.ro	249368	249368	0	0.0
			.dynamic	560	560	0	0.0
			.got	49272	49272	0	0.0
			.init	24	24	0	0.0
			.init_array	200	200	0	0.0
			.rodata	435804	435868	64	0.0
			.text	7133924	7134020	96	0.0
	thermostat-no-ble	arm64	(read only)	2162268	2162268	0	0.0
			(read/write)	150737	150737	0	0.0
			.bss	67489	67489	0	0.0
			.data	1032	1032	0	0.0
			.data.rel.ro	75024	75024	0	0.0
			.dynamic	560	560	0	0.0
			.got	4208	4208	0	0.0
			.init	24	24	0	0.0
			.init_array	336	336	0	0.0
			.rodata	133580	133580	0	0.0
			.text	1810064	1810064	0	0.0
mbed	all-clusters-app	CY8CPROTO_062_4343W+release	(read only)	6224	6224	0	0.0
			(read/write)	2428444	2428444	0	0.0
			.bss	195916	195916	0	0.0
			.data	5328	5328	0	0.0
			.text	1391016	1391016	0	0.0
	lighting-app	CY8CPROTO_062_4343W+release	(read only)	6224	6224	0	0.0
			(read/write)	2391644	2391644	0	0.0
			.bss	188448	188448	0	0.0
			.data	5632	5632	0	0.0
			.text	1354216	1354216	0	0.0
	lock-app	CY8CPROTO_062_4343W+release	(read only)	6224	6224	0	0.0
			(read/write)	2327080	2327080	0	0.0
			.bss	187424	187424	0	0.0
			.data	5608	5608	0	0.0
			.text	1289680	1289680	0	0.0
	pigweed-app	CY8CPROTO_062_4343W+release	(read only)	6224	6224	0	0.0
			(read/write)	1139840	1139840	0	0.0
			.bss	11796	11796	0	0.0
			.data	4368	4368	0	0.0
			.text	103224	103224	0	0.0
	shell	CY8CPROTO_062_4343W+release	(read only)	6224	6224	0	0.0
			(read/write)	2317916	2317916	0	0.0
			.bss	185972	185972	0	0.0
			.data	5440	5440	0	0.0
			.text	1280488	1280488	0	0.0
nrfconnect	lighting-app	nrf52840dk_nrf52840	(read/write)	1022279	1022279	0	0.0
			bss	123548	123548	0	0.0
			rodata	120660	120660	0	0.0
			text	699076	699076	0	0.0
		nrf52840dk_nrf52840+rpc	(read/write)	991571	991571	0	0.0
			bss	120736	120736	0	0.0
			rodata	112184	112184	0	0.0
			text	678976	678976	0	0.0
		nrf52840dongle_nrf52840	(read/write)	1037095	1037095	0	0.0
			bss	124768	124768	0	0.0
			rodata	119472	119472	0	0.0
			text	702968	702968	0	0.0
		nrf5340dk_nrf5340_cpuapp	(read/write)	928890	928890	0	0.0
			bss	120112	120112	0	0.0
			rodata	113900	113900	0	0.0
			text	614088	614088	0	0.0
	lock-app	nrf52840dk_nrf52840	(read/write)	950983	950983	0	0.0
			bss	121752	121752	0	0.0
			rodata	109356	109356	0	0.0
			text	641268	641268	0	0.0
		nrf5340dk_nrf5340_cpuapp	(read/write)	858442	858442	0	0.0
			bss	118344	118344	0	0.0
			rodata	102524	102524	0	0.0
			text	557056	557056	0	0.0
	pigweed-app	nrf52840dk_nrf52840	(read/write)	527595	527595	0	0.0
			bss	53632	53632	0	0.0
			rodata	49976	49976	0	0.0
			text	361016	361016	0	0.0
	pump-app	nrf52840dk_nrf52840	(read/write)	949431	949431	0	0.0
			bss	121472	121472	0	0.0
			rodata	108308	108308	0	0.0
			text	641088	641088	0	0.0
	pump-controller-app	nrf52840dk_nrf52840	(read/write)	945519	945519	0	0.0
			bss	121476	121476	0	0.0
			rodata	108004	108004	0	0.0
			text	637328	637328	0	0.0
	shell	nrf52840dk_nrf52840	(read/write)	810767	810767	0	0.0
			bss	113324	113324	0	0.0
			rodata	79348	79348	0	0.0
			text	540444	540444	0	0.0
p6	all-clusters-app	default	(read/write)	2485928	2485928	0	0.0
			.bss	124232	124232	0	0.0
			.data	2672	2672	0	0.0
			.text	1444192	1444192	0	0.0
	light-app	default	(read/write)	2392816	2392816	0	0.0
			.bss	113912	113912	0	0.0
			.data	2528	2528	0	0.0
			.text	1351080	1351080	0	0.0
	lock-app	default	(read/write)	2356280	2356280	0	0.0
			.bss	113640	113640	0	0.0
			.data	2488	2488	0	0.0
			.text	1314544	1314544	0	0.0
qpg	lighting-app	qpg6105+debug	(read only)	598816	598816	0	0.0
			(read/write)	146940	146940	0	0.0
			.bss	90744	90744	0	0.0
			.data	1112	1112	0	0.0
			.text	593496	593496	0	0.0
	lock-app	qpg6105+debug	(read only)	564440	564440	0	0.0
			(read/write)	146940	146940	0	0.0
			.bss	90728	90728	0	0.0
			.data	1064	1064	0	0.0
			.text	559120	559120	0	0.0
	persistent-storage-app	qpg6105+debug	(read only)	99520	99520	0	0.0
			(read/write)	146940	146940	0	0.0
			.bss	24004	24004	0	0.0
			.data	176	176	0	0.0
			.text	94200	94200	0	0.0
telink	lighting-app	tlsr9518adk80d	(read/write)	877618	877618	0	0.0
			bss	87520	87520	0	0.0
			noinit	37160	37160	0	0.0
			text	618038	618038	0	0.0