����JFIFXX�����    $.' ",#(7),01444'9=82<.342  2!!22222222222222222222222222222222222222222222222222����"��4�� ���,�PG"Z_�4�˷����kjز�Z�,F+��_z�,�© �����zh6�٨�ic�fu���#ډb���_�N�?��wQ���5-�~�I���8����TK<5o�Iv-�����k�_U_�����~b�M��d����Ӝ�U�Hh��?]��E�w��Q���k�{��_}qFW7HTՑ��Y��F�?_�'ϔ��_�Ջt��=||I ��6�έ"�����D���/[�k�9���Y�8ds|\���Ҿp6�Ҵ���]��.����6�z<�v��@]�i%��$j��~�g��J>��no����pM[me�i$[����s�o�ᘨ�˸ nɜG-�ĨU�ycP�3.DB�li�;��hj���x7Z^�N�h������N3u{�:j�x�힞��#M&��jL P@_���� P��&��o8������9�����@Sz6�t7#O�ߋ �s}Yf�T���lmr����Z)'N��k�۞p����w\�Tȯ?�8`�O��i{wﭹW�[�r�� ��Q4F�׊���3m&L�=��h3����z~��#�\�l :�F,j@�� ʱ�wQT����8�"kJO���6�֚l����}���R�>ډK���]��y����&����p�}b��;N�1�m�r$�|��7�>e�@B�TM*-iH��g�D�)� E�m�|�ؘbҗ�a��Ҿ����t4���o���G��*oCN�rP���Q��@z,|?W[0�����:�n,jWiE��W��$~/�hp\��?��{(�0���+�Y8rΟ�+����>S-S����VN;�}�s?.����� w�9��˟<���Mq4�Wv'��{)0�1mB��V����W[�����8�/<� �%���wT^�5���b��)iM� pg�N�&ݝ��VO~�q���u���9� ����!��J27����$O-���! �:�%H��� ـ����y�ΠM=t{!S�� oK8������t<����è:a������[�����ա�H���~��w��Qz`�po�^ ����Q��n� �,uu�C�$ ^���,������8�#��:�6��e�|~���!�3�3.�\0��q��o�4`.|� ����y�Q�`~;�d�ׯ,��O�Zw�������`73�v�܋�<���Ȏ�� ـ4k��5�K�a�u�=9Yd��$>x�A�&�� j0� ���vF��� Y�|�y��� ~�6�@c��1vOp�Ig����4��l�OD���L����� R���c���j�_�uX6��3?nk��Wy�f;^*B� ��@�~a�`��Eu������+���6�L��.ü>��}y���}_�O�6�͐�:�YrG�X��kG�����l^w���~㒶sy��Iu�!� W ��X��N�7BV��O��!X�2����wvG�R�f�T#�����t�/?���%8�^�W�aT��G�cL�M���I��(J����1~�8�?aT ���]����AS�E��(��*E}� 2��#I/�׍qz��^t�̔���b�Yz4x���t�){ OH��+(E��A&�N�������XT��o��"�XC��'���)}�J�z�p� ��~5�}�^����+�6����w��c��Q�|Lp�d�H��}�(�.|����k��c4^�"�����Z?ȕ ��a<�L�!039C� �Eu�C�F�Ew�ç ;�n?�*o���B�8�bʝ���'#Rqf���M}7����]����s2tcS{�\icTx;�\��7K���P���ʇ Z O-��~��c>"��?�������P��E��O�8��@�8��G��Q�g�a�Վ���󁶠�䧘��_%#r�>�1�z�a��eb��qcPѵ��n���#L��� =��׀t� L�7�`��V���A{�C:�g���e@�w1 Xp3�c3�ġ����p��M"'-�@n4���fG��B3�DJ�8[Jo�ߐ���gK)ƛ��$���� ���8�3�����+���� �����6�ʻ���� ���S�kI�*KZlT _`���?��K����QK�d����B`�s}�>���`��*�>��,*@J�d�oF*����弝��O}�k��s��]��y�ߘ��c1G�V���<=�7��7����6�q�PT��tXԀ�!9*4�4Tހ3XΛex�46���Y��D ����� �BdemDa����\�_l,��G�/���֌7���Y�](�xTt^%�GE�����4�}bT���ڹ�����;Y)���B�Q��u��>J/J �⮶.�XԄ��j�ݳ�+E��d ��r�5�_D�1 ��o�� �B�x�΢�#���<��W�����8���R6�@g�M�.��� dr�D��>(otU��@x=��~v���2� ӣ�d�oBd��3�eO�6�㣷�����ݜ6��6Y��Qz`��S��{���\P�~z m5{J/L��1������<�e�ͅPu�b�]�ϔ���'������f�b� Zpw��c`"��i���BD@:)ִ�:�]��hv�E�w���T�l��P���"Ju�}��وV J��G6��. J/�Qgl߭�e�����@�z�Zev2u�)]կ�����7x���s�M�-<ɯ�c��r�v�����@��$�ޮ}lk���a���'����>x��O\�ZFu>�����ck#��&:��`�$�ai�>2Δ����l���oF[h��lE�ܺ�Πk:)���`�� $[6�����9�����kOw�\|���8}������ބ:��񶐕��I�A1/�=�2[�,�!��.}gN#�u����b��� ~��݊��}34q����d�E��Lc��$��"�[q�U�硬g^��%B �z���r�pJ�ru%v\h1Y�ne`ǥ:g���pQM~�^�Xi� ��`S�:V29.�P���V�?B�k�� AEvw%�_�9C�Q����wKekPؠ�\�;Io d�{ ߞo�c1eP����\� `����E=���@K<�Y���eڼ�J���w����{av�F�'�M�@/J��+9p���|]�����Iw &`��8���&M�hg��[�{��Xj��%��Ӓ�$��(����ʹN���<>�I���RY���K2�NPlL�ɀ)��&e����B+ь����( � �JTx���_?EZ� }@ 6�U���뙢ط�z��dWI�n` D����噥�[��uV��"�G&Ú����2g�}&m��?ċ�"����Om#��������� ��{�ON��"S�X��Ne��ysQ���@Fn��Vg���dX�~nj�]J�<�K]:��FW��b�������62�=��5f����JKw��bf�X�55��~J �%^����:�-�QIE��P��v�nZum� z � ~ə ���� ���ة����;�f��\v���g�8�1��f24;�V���ǔ�)����9���1\��c��v�/'Ƞ�w�������$�4�R-��t���� e�6�/�ġ �̕Ecy�J���u�B���<�W�ַ~�w[B1L۲�-JS΂�{���΃������A��20�c#��@ 0!1@AP"#2Q`$3V�%45a6�FRUq��� ����^7ׅ,$n�������+��F�`��2X'��0vM��p�L=������5��8������u�p~���.�`r�����\���O��,ư�0oS ��_�M�����l���4�kv\JSd���x���SW�<��Ae�IX����������$I���w�:S���y���›R��9�Q[���,�5�;�@]�%���u�@ *ro�lbI �� ��+���%m:�͇ZV�����u�̉����θau<�fc�.����{�4Ա� �Q����*�Sm��8\ujqs]{kN���)qO�y�_*dJ�b�7���yQqI&9�ԌK!�M}�R�;������S�T���1���i[U�ɵz�]��U)V�S6���3$K{�ߊ<�(� E]Զ[ǼENg�����'�\?#)Dkf��J���o��v���'�%ƞ�&K�u�!��b�35LX�Ϸ��63$K�a�;�9>,R��W��3�3� d�JeTYE.Mϧ��-�o�j3+y��y^�c�������VO�9NV\nd�1 ��!͕_)a�v;����թ�M�lWR1��)El��P;��yوÏ�u 3�k�5Pr6<�⒲l�!˞*��u־�n�!�l:����UNW ��%��Chx8vL'��X�@��*��)���̮��ˍ��� ���D-M�+J�U�kvK����+�x8��cY������?�Ԡ��~3mo��|�u@[XeY�C�\Kp�x8�oC�C�&����N�~3-H���� ��MX�s�u<`���~"WL��$8ξ��3���a�)|:@�m�\���^�`�@ҷ)�5p+��6���p�%i)P M���ngc�����#0Aruz���RL+xSS?���ʮ}()#�t��mˇ!��0}}y����<�e� �-ή�Ԩ��X������ MF���ԙ~l L.3���}�V뽺�v�����멬��Nl�)�2����^�Iq��a��M��qG��T�����c3#������3U�Ǎ���}��לS�|qa��ڃ�+���-��2�f����/��bz��ڐ�� �ݼ[2�ç����k�X�2�* �Z�d���J�G����M*9W���s{��w���T��x��y,�in�O�v��]���n����P�$�JB@=4�OTI�n��e�22a\����q�d���%�$��(���:���: /*�K[PR�fr\nڙdN���F�n�$�4�[�� U�zƶ����� �mʋ���,�ao�u 3�z� �x��Kn����\[��VFmbE;�_U��&V�Gg�]L�۪&#n%�$ɯ�dG���D�TI=�%+AB�Ru#��b4�1�»x�cs�YzڙJG��f��Il��d�eF'T� iA��T���uC�$����Y��H?����[!G`}���ͪ� �纤Hv\������j�Ex�K���!���OiƸ�Yj�+u-<���'q����uN�*�r\��+�]���<�wOZ.fp�ێ��,-*)V?j-kÊ#�`�r��dV����(�ݽBk�����G�ƛk�QmUڗe��Z���f}|����8�8��a���i��3'J�����~G_�^���d�8w������ R�`(�~�.��u���l�s+g�bv���W���lGc}��u���afE~1�Ue������Z�0�8�=e�� f@/�jqEKQQ�J��oN��J���W5~M>$6�Lt�;$ʳ{���^��6�{����v6���ķܰg�V�cnn �~z�x�«�,2�u�?cE+Ș�H؎�%�Za�)���X>uW�Tz�Nyo����s���FQƤ��$��*�&�LLXL)�1�" L��eO��ɟ�9=���:t��Z���c��Ž���Y?�ӭV�wv�~,Y��r�ۗ�|�y��GaF�����C�����.�+� ���v1���fήJ�����]�S��T��B��n5sW}y�$��~z�'�c ��8 ��� ,! �p��VN�S��N�N�q��y8z˱�A��4��*��'������2n<�s���^ǧ˭P�Jޮɏ�U�G�L�J�*#��<�V��t7�8����TĜ>��i}K%,���)[��z�21z ?�N�i�n1?T�I�R#��m-�����������������1����lA�`��fT5+��ܐ�c�q՝��ʐ��,���3�f2U�եmab��#ŠdQ�y>\��)�SLY����w#��.���ʑ�f��� ,"+�w�~�N�'�c�O�3F�������N<���)j��&��,-� �љ���֊�_�zS���TǦ����w�>��?�������n��U仆�V���e�����0���$�C�d���rP �m�׈e�Xm�Vu� �L��.�bֹ��� �[Դaզ���*��\y�8�Է:�Ez\�0�Kq�C b��̘��cө���Q��=0Y��s�N��S.���3.���O�o:���#���v7�[#߫ ��5�܎�L���Er4���9n��COWlG�^��0k�%<���ZB���aB_���������'=��{i�v�l�$�uC���mƎҝ{�c㱼�y]���W�i ��ߧc��m�H� m�"�"�����;Y�ߝ�Z�Ǔ�����:S#��|}�y�,/k�Ld� TA�(�AI$+I3��;Y*���Z��}|��ӧO��d�v��..#:n��f>�>���ȶI�TX��� 8��y����"d�R�|�)0���=���n4��6ⲑ�+��r<�O�܂~zh�z����7ܓ�HH�Ga롏���nCo�>������a ���~]���R���̲c?�6(�q�;5%� |�uj�~z8R=X��I�V=�|{v�Gj\gc��q����z�؋%M�ߍ����1y��#��@f^���^�>N�����#x#۹��6�Y~�?�dfPO��{��P�4��V��u1E1J �*|���%���JN��`eWu�zk M6���q t[�� ��g�G���v��WIG��u_ft����5�j�"�Y�:T��ɐ���*�;� e5���4����q$C��2d�}���� _S�L#m�Yp��O�.�C�;��c����Hi#֩%+) �Ӎ��ƲV���SYź��g |���tj��3�8���r|���V��1#;.SQ�A[���S������#���`n�+���$��$I �P\[�@�s��(�ED�z���P��])8�G#��0B��[ى��X�II�q<��9�~[Z멜�Z�⊔IWU&A>�P~�#��dp<�?����7���c��'~���5 ��+$���lx@�M�dm��n<=e�dyX��?{�|Aef ,|n3�<~z�ƃ�uۧ�����P��Y,�ӥQ�*g�#먙R�\���;T��i,��[9Qi歉����c>]9�� ��"�c��P�� �Md?٥��If�ت�u��k��/����F��9�c*9��Ǎ:�ØF���z�n*�@|I�ށ9����N3{'��[�'ͬ�Ҳ4��#}��!�V� Fu��,�,mTIk���v C�7v���B�6k�T9��1�*l� '~��ƞF��lU��'�M ����][ΩũJ_�{�i�I�n��$���L�� j��O�dx�����kza۪��#�E��Cl����x˘�o�����V���ɞ�ljr��)�/,�߬h�L��#��^��L�ф�,íMƁe�̩�NB�L�����iL����q�}��(��q��6IçJ$�W�E$��:������=#����(�K�B����zђ <��K(�N�۫K�w��^O{!����)�H���>x�������lx�?>Պ�+�>�W���,Ly!_�D���Ō�l���Q�!�[ �S����J��1��Ɛ�Y}��b,+�Lo�x�ɓ)����=�y�oh�@�꥟/��I��ѭ=��P�y9��� �ۍYӘ�e+�p�Jnϱ?V\SO%�(�t� ���=?MR�[Ș�����d�/ ��n�l��B�7j� ��!�;ӥ�/�[-���A�>�dN�sLj ��,ɪv��=1c�.SQ�O3�U���ƀ�ܽ�E����������̻��9G�ϷD�7(�}��Ävӌ\�y�_0[w ���<΍>����a_��[0+�L��F.�޺��f�>oN�T����q;���y\��bՃ��y�jH�<|q-eɏ�_?_9+P���Hp$�����[ux�K w�Mw��N�ی'$Y2�=��q���KB��P��~������Yul:�[<����F1�2�O���5=d����]Y�sw:���Ϯ���E��j,_Q��X��z`H1,#II ��d�wr��P˂@�ZJV����y$�\y�{}��^~���[:N����ߌ�U�������O��d�����ؾe��${p>G��3c���Ė�lʌ�� ת��[��`ϱ�-W����dg�I��ig2��� ��}s ��ؤ(%#sS@���~���3�X�nRG�~\jc3�v��ӍL��M[JB�T��s3}��j�Nʖ��W����;7��ç?=X�F=-�=����q�ߚ���#���='�c��7���ڑW�I(O+=:uxq�������������e2�zi+�kuG�R��������0�&e�n���iT^J����~\jy���p'dtG��s����O��3����9* �b#Ɋ�� p������[Bws�T�>d4�ۧs���nv�n���U���_�~,�v����ƜJ1��s�� �QIz��)�(lv8M���U=�;����56��G���s#�K���MP�=��LvyGd��}�VwWBF�'�à �?MH�U�g2�� ����!�p�7Q��j��ڴ����=��j�u��� Jn�A s���uM������e��Ɔ�Ҕ�!)'��8Ϣ�ٔ��ޝ(��Vp���צ֖d=�IC�J�Ǡ{q������kԭ�߸���i��@K����u�|�p=..�*+����x�����z[Aqġ#s2a�Ɗ���RR�)*HRsi�~�a &f��M��P����-K�L@��Z��Xy�'x�{}��Zm+���:�)�) IJ�-i�u���� ���ܒH��'�L(7�y�GӜq���� j��� 6ߌg1�g�o���,kر���tY�?W,���p���e���f�OQS��!K�۟cҒA�|ս�j�>��=⬒��˧L[�� �߿2JaB~R��u�:��Q�] �0H~���]�7��Ƽ�I���(}��cq '�ήET���q�?f�ab���ӥvr� �)o��-Q��_'����ᴎo��K������;��V���o��%���~OK ����*��b�f:���-ťIR��`B�5!RB@���ï�� �u �̯e\�_U�_������� g�ES��3�������QT��a����x����U<~�c?�*�#]�MW,[8O�a�x��]�1bC|踤�P��lw5V%�)�{t�<��d��5���0i�XSU��m:��Z�┵�i�"��1�^B�-��P�hJ��&)O��*�D��c�W��vM��)����}���P��ܗ-q����\mmζZ-l@�}��a��E�6��F�@��&Sg@���ݚ�M����� ȹ 4����#p�\H����dYDo�H���"��\��..R�B�H�z_�/5˘����6��KhJR��P�mƶi�m���3�,#c�co��q�a)*Pt����R�m�k�7x�D�E�\Y�閣_X�<���~�)���c[[�BP����6�Yq���S��0����%_����;��Àv�~�| VS؇ ��'O0��F0��\���U�-�d@�����7�SJ*z��3n��y��P����O���������m�~�P�3|Y��ʉr#�C�<�G~�.,! ���bqx���h~0=��!ǫ�jy����l�O,�[B��~��|9��ٱ����Xly�#�i�B��g%�S��������tˋ���e���ې��\[d�t)��.+u�|1 ������#�~Oj����hS�%��i.�~X���I�H�m��0n���c�1uE�q��cF�RF�o���7� �O�ꮧ� ���ۛ{��ʛi5�rw?׌#Qn�TW��~?y$��m\�\o����%W� ?=>S�N@�� �Ʈ���R����N�)�r"C�:��:����� �����#��qb��Y�. �6[��2K����2u�Ǧ�HYR��Q�MV��� �G�$��Q+.>�����nNH��q�^��� ����q��mM��V��D�+�-�#*�U�̒ ���p욳��u:�������IB���m���PV@O���r[b= �� ��1U�E��_Nm�yKbN�O���U�}�the�`�|6֮P>�\2�P�V���I�D�i�P�O;�9�r�mAHG�W�S]��J*�_�G��+kP�2����Ka�Z���H�'K�x�W�MZ%�O�YD�Rc+o��?�q��Ghm��d�S�oh�\�D�|:W������UA�Qc yT�q������~^�H��/��#p�CZ���T�I�1�ӏT����4��"�ČZ�����}��`w�#�*,ʹ�� ��0�i��課�Om�*�da��^gJ݅{���l�e9uF#T�ֲ��̲�ٞC"�q���ߍ ոޑ�o#�XZTp����@ o�8��(jd��xw�]�,f���`~�|,s��^����f�1���t��|��m�򸄭/ctr��5s��7�9Q�4�H1꠲BB@l9@���C�����+�wp�xu�£Yc�9��?`@#�o�mH�s2��)�=��2�.�l����jg�9$�Y�S�%*L������R�Y������7Z���,*=�䷘$�������arm�o�ϰ���UW.|�r�uf����IGw�t����Zwo��~5 ��YյhO+=8fF�)�W�7�L9lM�̘·Y���֘YLf�큹�pRF���99.A �"wz��=E\Z���'a� 2��Ǚ�#;�'}�G���*��l��^"q��+2FQ� hj��kŦ��${���ޮ-�T�٭cf�|�3#~�RJ����t��$b�(R��(����r���dx� >U b�&9,>���%E\� Ά�e�$��'�q't��*�א���ެ�b��-|d���SB�O�O��$�R+�H�)�܎�K��1m`;�J�2�Y~9��O�g8=vqD`K[�F)k�[���1m޼c��n���]s�k�z$@��)!I �x՝"v��9=�ZA=`Ɠi �:�E��)`7��vI��}d�YI�_ �o�:ob���o ���3Q��&D&�2=�� �Ά��;>�h����y.*ⅥS������Ӭ�+q&����j|UƧ����}���J0��WW< ۋS�)jQR�j���Ư��rN)�Gű�4Ѷ(�S)Ǣ�8��i��W52���No˓� ۍ%�5brOn�L�;�n��\G����=�^U�dI���8$�&���h��'���+�(������cȁ߫k�l��S^���cƗjԌE�ꭔ��gF���Ȓ��@���}O���*;e�v�WV���YJ\�]X'5��ղ�k�F��b 6R�o՜m��i N�i����>J����?��lPm�U��}>_Z&�KK��q�r��I�D�Չ~�q�3fL�:S�e>���E���-G���{L�6p�e,8��������QI��h��a�Xa��U�A'���ʂ���s�+טIjP�-��y�8ۈZ?J$��W�P� ��R�s�]��|�l(�ԓ��sƊi��o(��S0��Y� 8�T97.�����WiL��c�~�dxc�E|�2!�X�K�Ƙਫ਼�$((�6�~|d9u+�qd�^3�89��Y�6L�.I�����?���iI�q���9�)O/뚅����O���X��X�V��ZF[�یgQ�L��K1���RҖr@v�#��X�l��F���Нy�S�8�7�kF!A��sM���^rkp�jP�DyS$N���q��nxҍ!U�f�!eh�i�2�m���`�Y�I�9r�6� �TF���C}/�y�^���Η���5d�'��9A-��J��>{�_l+�`��A���[�'��յ�ϛ#w:݅�%��X�}�&�PSt�Q�"�-��\縵�/����$Ɨh�Xb�*�y��BS����;W�ջ_mc�����vt?2}1�;qS�d�d~u:2k5�2�R�~�z+|HE!)�Ǟl��7`��0�<�,�2*���Hl-��x�^����'_TV�gZA�'j� ^�2Ϊ��N7t�����?w�� �x1��f��Iz�C-Ȗ��K�^q�;���-W�DvT�7��8�Z�������� hK�(P:��Q- �8�n�Z���܃e貾�<�1�YT<�,�����"�6{/ �?�͟��|1�:�#g��W�>$����d��J��d�B��=��jf[��%rE^��il:��B���x���Sּ�1հ��,�=��*�7 fcG��#q� �eh?��2�7�����,�!7x��6�n�LC�4x��},Geǝ�tC.��vS �F�43��zz\��;QYC,6����~;RYS/6���|2���5���v��T��i����������mlv��������&� �nRh^ejR�LG�f���? �ۉҬܦƩ��|��Ȱ����>3����!v��i�ʯ�>�v��オ�X3e���_1z�Kȗ\<������!�8���V��]��?b�k41�Re��T�q��mz��TiOʦ�Z��Xq���L������q"+���2ۨ��8}�&N7XU7Ap�d�X��~�׿��&4e�o�F��� �H����O���č�c�� 懴�6���͉��+)��v;j��ݷ�� �UV�� i��� j���Y9GdÒJ1��詞�����V?h��l����l�cGs�ځ�������y�Ac�����\V3�? �� ܙg�>qH�S,�E�W�[�㺨�uch�⍸�O�}���a��>�q�6�n6����N6�q������N ! 1AQaq�0@����"2BRb�#Pr���3C`��Scst���$4D���%Td�� ?���N����a��3��m���C���w��������xA�m�q�m���m������$����4n淿t'��C"w��zU=D�\R+w�p+Y�T�&�պ@��ƃ��3ޯ?�Aﶂ��aŘ���@-�����Q�=���9D��ռ�ѻ@��M�V��P��܅�G5�f�Y<�u=,EC)�<�Fy'�"�&�չ�X~f��l�KԆV��?�� �W�N����=(� �;���{�r����ٌ�Y���h{�١������jW����P���Tc�����X�K�r��}���w�R��%��?���E��m�� �Y�q|����\lEE4���r���}�lsI�Y������f�$�=�d�yO����p�����yBj8jU�o�/�S��?�U��*������ˍ�0������u�q�m [�?f����a�� )Q�>����6#������� ?����0UQ����,IX���(6ڵ[�DI�MNލ�c&���υ�j\��X�R|,4��� j������T�hA�e��^���d���b<����n�� �즇�=!���3�^�`j�h�ȓr��jẕ�c�,ٞX����-����a�ﶔ���#�$��]w�O��Ӫ�1y%��L�Y<�wg#�ǝ�̗`�x�xa�t�w��»1���o7o5��>�m뭛C���Uƃߜ}�C���y1Xνm�F8�jI���]����H���ۺиE@I�i;r�8ӭ����V�F�Շ| ��&?�3|x�B�MuS�Ge�=Ӕ�#BE5G�����Y!z��_e��q�р/W>|-�Ci߇�t�1ޯќd�R3�u��g�=0 5��[?�#͏��q�cf���H��{ ?u�=?�?ǯ���}Z��z���hmΔ�BFTW�����<�q�(v� ��!��z���iW]*�J�V�z��gX֧A�q�&��/w���u�gYӘa���; �i=����g:��?2�dž6�ى�k�4�>�Pxs����}������G�9��3 ���)gG�R<>r h�$��'nc�h�P��Bj��J�ҧH� -��N1���N��?��~��}-q!=��_2hc�M��l�vY%UE�@|�v����M2�.Y[|y�"Eï��K�ZF,�ɯ?,q�?v�M 80jx�"�;�9vk�����+ ֧�� �ȺU��?�%�vcV��mA�6��Qg^M����A}�3�nl� QRN�l8�kkn�'�����(��M�7m9و�q���%ޟ���*h$Zk"��$�9��: �?U8�Sl��,,|ɒ��xH(ѷ����Gn�/Q�4�P��G�%��Ա8�N��!� �&�7�;���eKM7�4��9R/%����l�c>�x;������>��C�:�����t��h?aKX�bhe�ᜋ^�$�Iհ �hr7%F$�E��Fd���t��5���+�(M6�t����Ü�UU|zW�=a�Ts�Tg������dqP�Q����b'�m���1{|Y����X�N��b �P~��F^F:����k6�"�j!�� �I�r�`��1&�-$�Bevk:y���#yw��I0��x��=D�4��tU���P�ZH��ڠ底taP��6����b>�xa����Q�#� WeF��ŮNj�p�J* mQ�N����*I�-*�ȩ�F�g�3 �5��V�ʊ�ɮ�a��5F���O@{���NX��?����H�]3��1�Ri_u��������ѕ�� ����0��� F��~��:60�p�͈�S��qX#a�5>���`�o&+�<2�D����: �������ڝ�$�nP���*)�N�|y�Ej�F�5ټ�e���ihy�Z �>���k�bH�a�v��h�-#���!�Po=@k̆IEN��@��}Ll?j�O������߭�ʞ���Q|A07x���wt!xf���I2?Z��<ץ�T���cU�j��]��陎Ltl �}5�ϓ��$�,��O�mˊ�;�@O��jE��j(�ا,��LX���LO���Ц�90�O �.����a��nA���7������j4 ��W��_ٓ���zW�jcB������y՗+EM�)d���N�g6�y1_x��p�$Lv:��9�"z��p���ʙ$��^��JԼ*�ϭ����o���=x�Lj�6�J��u82�A�H�3$�ٕ@�=Vv�]�'�qEz�;I˼��)��=��ɯ���x �/�W(V���p�����$ �m�������u�����񶤑Oqˎ�T����r��㠚x�sr�GC��byp�G��1ߠ�w e�8�$⿄����/�M{*}��W�]˷.�CK\�ުx���/$�WPw���r� |i���&�}�{�X� �>��$-��l���?-z���g����lΆ���(F���h�vS*���b���߲ڡn,|)mrH[���a�3�ר�[1��3o_�U�3�TC�$��(�=�)0�kgP���� ��u�^=��4 �WYCҸ:��vQ�ר�X�à��tk�m,�t*��^�,�}D*� �"(�I��9R����>`�`��[~Q]�#af��i6l��8���6�:,s�s�N6�j"�A4���IuQ��6E,�GnH��zS�HO�uk�5$�I�4��ؤ�Q9�@��C����wp�BGv[]�u�Ov���0I4���\��y�����Q�Ѹ��~>Z��8�T��a��q�ޣ;z��a���/��S��I:�ܫ_�|������>=Z����8:�S��U�I�J��"IY���8%b8���H��:�QO�6�;7�I�S��J��ҌAά3��>c���E+&jf$eC+�z�;��V����� �r���ʺ������my�e���aQ�f&��6�ND��.:��NT�vm�<- u���ǝ\MvZY�N�NT��-A�>jr!S��n�O 1�3�Ns�%�3D@���`������ܟ 1�^c<���� �a�ɽ�̲�Xë#�w�|y�cW�=�9I*H8�p�^(4���՗�k��arOcW�tO�\�ƍR��8����'�K���I�Q�����?5�>[�}��yU�ײ -h��=��% q�ThG�2�)���"ו3]�!kB��*p�FDl�A���,�eEi�H�f�Ps�����5�H:�Փ~�H�0Dت�D�I����h�F3�������c��2���E��9�H��5�zԑ�ʚ�i�X�=:m�xg�hd(�v����׊�9iS��O��d@0ڽ���:�p�5�h-��t�&���X�q�ӕ,��ie�|���7A�2���O%P��E��htj��Y1��w�Ѓ!����  ���� ࢽ��My�7�\�a�@�ţ�J �4�Ȼ�F�@o�̒?4�wx��)��]�P��~�����u�����5�����7X ��9��^ܩ�U;Iꭆ 5 �������eK2�7(�{|��Y׎ �V��\"���Z�1� Z�����}��(�Ǝ"�1S���_�vE30>���p;� ΝD��%x�W�?W?v����o�^V�i�d��r[��/&>�~`�9Wh��y�;���R��� ;;ɮT��?����r$�g1�K����A��C��c��K��l:�'��3 c�ﳯ*"t8�~l��)���m��+U,z��`(�>yJ�?����h>��]��v��ЍG*�{`��;y]��I�T� ;c��NU�fo¾h���/$���|NS���1�S�"�H��V���T���4��uhǜ�]�v;���5�͠x��'C\�SBpl���h}�N����� A�Bx���%��ޭ�l��/����T��w�ʽ]D�=����K���ž�r㻠l4�S�O?=�k �M:� ��c�C�a�#ha���)�ѐxc�s���gP�iG��{+���x���Q���I= �� z��ԫ+ �8"�k�ñ�j=|����c ��y��CF��/��*9ж�h{ �?4�o� ��k�m�Q�N�x��;�Y��4膚�a�w?�6�>e]�����Q�r�:����g�,i"�����ԩA�*M�<�G��b�if��l^M��5� �Ҩ�{����6J��ZJ�����P�*�����Y���ݛu�_4�9�I8�7���������,^ToR���m4�H��?�N�S�ѕw��/S��甍�@�9H�S�T��t�ƻ���ʒU��*{Xs�@����f�����֒Li�K{H�w^���������Ϥm�tq���s� ���ք��f:��o~s��g�r��ט� �S�ѱC�e]�x���a��) ���(b-$(�j>�7q�B?ӕ�F��hV25r[7 Y� }L�R��}����*sg+��x�r�2�U=�*'WS��ZDW]�WǞ�<��叓���{�$�9Ou4��y�90-�1�'*D`�c�^o?(�9��u���ݐ��'PI&� f�Jݮ�������:wS����jfP1F:X �H�9dԯ���˝[�_54 �}*;@�ܨ�� ð�yn�T���?�ןd�#���4rG�ͨ��H�1�|-#���Mr�S3��G�3�����)�.᧏3v�z֑��r����$G"�`j �1t��x0<Ɔ�Wh6�y�6��,œ�Ga��gA����y��b��)��h�D��ß�_�m��ü �gG;��e�v��ݝ�nQ� ��C����-�*��o���y�a��M��I�>�<���]obD��"�:���G�A��-\%LT�8���c�)��+y76���o�Q�#*{�(F�⽕�y����=���rW�\p���۩�c���A���^e6��K������ʐ�cVf5$�'->���ՉN"���F�"�UQ@�f��Gb~��#�&�M=��8�ט�JNu9��D��[̤�s�o�~������ G��9T�tW^g5y$b��Y'��س�Ǵ�=��U-2 #�MC�t(�i� �lj�@Q 5�̣i�*�O����s�x�K�f��}\��M{E�V�{�υ��Ƈ�����);�H����I��fe�Lȣr�2��>��W�I�Ȃ6������i��k�� �5�YOxȺ����>��Y�f5'��|��H+��98pj�n�.O�y�������jY��~��i�w'������l�;�s�2��Y��:'lg�ꥴ)o#'Sa�a�K��Z� �m��}�`169�n���"���x��I ��*+� }F<��cГ���F�P�������ֹ*�PqX�x۩��,� ��N�� �4<-����%����:��7����W���u�`����� $�?�I��&����o��o��`v�>��P��"��l���4��5'�Z�gE���8���?��[�X�7(��.Q�-��*���ތL@̲����v��.5���[��=�t\+�CNܛ��,g�SQnH����}*F�G16���&:�t��4ُ"A��̣��$�b �|����#rs��a�����T�� ]�<�j��BS�('$�ɻ� �wP;�/�n��?�ݜ��x�F��yUn�~mL*-�������Xf�wd^�a�}��f�,=t�׵i�.2/wpN�Ep8�OР���•��R�FJ� 55TZ��T �ɭ�<��]��/�0�r�@�f��V��V����Nz�G��^���7hZi����k��3�,kN�e|�vg�1{9]_i��X5y7� 8e]�U����'�-2,���e"����]ot�I��Y_��n�(JҼ��1�O ]bXc���Nu�No��pS���Q_���_�?i�~�x h5d'�(qw52] ��'ޤ�q��o1�R!���`ywy�A4u���h<קy���\[~�4�\ X�Wt/� 6�����n�F�a8��f���z �3$�t(���q��q�x��^�XWeN'p<-v�!�{�(>ӽDP7��ո0�y)�e$ٕv�Ih'Q�EA�m*�H��RI��=:��� ���4牢) �%_iN�ݧ�l]� �Nt���G��H�L��� ɱ�g<���1V�,�J~�ٹ�"K��Q�� 9�HS�9�?@��k����r�;we݁�]I�!{ �@�G�[�"��`���J:�n]�{�cA�E����V��ʆ���#��U9�6����j�#Y�m\��q�e4h�B�7��C�������d<�?J����1g:ٳ���=Y���D�p�ц� ׈ǔ��1�]26؜oS�'��9�V�FVu�P�h�9�xc�oq�X��p�o�5��Ա5$�9W�V(�[Ak�aY錎qf;�'�[�|���b�6�Ck��)��#a#a˙��8���=äh�4��2��C��4tm^ �n'c���]GQ$[Wҿ��i���vN�{Fu ��1�gx��1┷���N�m��{j-,��x�� Ūm�ЧS�[�s���Gna���䑴�� x�p 8<������97�Q���ϴ�v�aϚG��Rt�Һ׈�f^\r��WH�JU�7Z���y)�vg=����n��4�_)y��D'y�6�]�c�5̪�\� �PF�k����&�c;��cq�$~T�7j ���nç]�<�g ":�to�t}�159�<�/�8������m�b�K#g'I'.W�����6��I/��>v��\�MN��g���m�A�yQL�4u�Lj�j9��#44�t��l^�}L����n��R��!��t��±]��r��h6ٍ>�yҏ�N��fU�� ���� Fm@�8}�/u��jb9������he:A�y�ծw��GpΧh�5����l}�3p468��)U��d��c����;Us/�֔�YX�1�O2��uq�s��`hwg�r~�{ R��mhN��؎*q 42�*th��>�#���E����#��Hv�O����q�}�����6�e��\�,Wk�#���X��b>��p}�դ��3���T5��†��6��[��@�P�y*n��|'f�֧>�lư΂�̺����SU�'*�q�p�_S�����M�� '��c�6�����m�� ySʨ;M��r���Ƌ�m�Kxo,���Gm�P��A�G�:��i��w�9�}M(�^�V��$ǒ�ѽ�9���|���� �a����J�SQ�a���r�B;����}���ٻ֢�2�%U���c�#�g���N�a�ݕ�'�v�[�OY'��3L�3�;,p�]@�S��{ls��X�'���c�jw�k'a�.��}�}&�� �dP�*�bK=ɍ!����;3n�gΊU�ߴmt�'*{,=SzfD� A��ko~�G�aoq�_mi}#�m�������P�Xhύ����mxǍ�΂���巿zf��Q���c���|kc�����?���W��Y�$���_Lv����l߶��c���`?����l�j�ݲˏ!V��6����U�Ђ(A���4y)H���p�Z_�x��>���e��R��$�/�`^'3qˏ�-&Q�=?��CFVR �D�fV�9��{�8g�������n�h�(P"��6�[�D���< E�����~0<@�`�G�6����Hг�cc�� �c�K.5��D��d�B���`?�XQ��2��ٿyqo&+�1^� DW�0�ꊩ���G�#��Q�nL3��c���������/��x ��1�1[y�x�პCW��C�c�UĨ80�m�e�4.{�m��u���I=��f�����0QRls9���f���������9���~f�����Ǩ��a�"@�8���ȁ�Q����#c�ic������G��$���G���r/$W�(��W���V�"��m�7�[m�A�m����bo��D� j����۳� l���^�k�h׽����� ��#� iXn�v��eT�k�a�^Y�4�BN��ĕ��0 !01@Q"2AaPq3BR������?���@4�Q�����T3,���㺠�W�[=JK�Ϟ���2�r^7��vc�:�9 �E�ߴ�w�S#d���Ix��u��:��Hp��9E!�� V 2;73|F��9Y���*ʬ�F��D����u&���y؟��^EA��A��(ɩ���^��GV:ݜDy�`��Jr29ܾ�㝉��[���E;Fzx��YG��U�e�Y�C���� ����v-tx����I�sם�Ę�q��Eb�+P\ :>�i�C'�;�����k|z�رn�y]�#ǿb��Q��������w�����(�r|ӹs��[�D��2v-%��@;�8<a���[\o[ϧw��I!��*0�krs)�[�J9^��ʜ��p1)� "��/_>��o��<1����A�E�y^�C��`�x1'ܣn�p��s`l���fQ��):�l����b>�Me�jH^?�kl3(�z:���1ŠK&?Q�~�{�ٺ�h�y���/�[��V�|6��}�KbX����mn[-��7�5q�94�������dm���c^���h� X��5��<�eޘ>G���-�}�دB�ޟ� ��|�rt�M��V+�]�c?�-#ڛ��^ǂ}���Lkr���O��u�>�-D�ry� D?:ޞ�U��ǜ�7�V��?瓮�"�#���r��չģVR;�n���/_� ؉v�ݶe5d�b9��/O��009�G���5n�W����JpA�*�r9�>�1��.[t���s�F���nQ� V 77R�]�ɫ8����_0<՜�IF�u(v��4��F�k�3��E)��N:��yڮe��P�`�1}�$WS��J�SQ�N�j�ٺ��޵�#l���ј(�5=��5�lǏmoW�v-�1����v,W�mn��߀$x�<����v�j(����c]��@#��1������Ǔ���o'��u+����;G�#�޸��v-lη��/(`i⣍Pm^���ԯ̾9Z��F��������n��1��� ��]�[��)�'������:�֪�W��FC����� �B9،!?���]��V��A�Վ�M��b�w��G F>_DȬ0¤�#�QR�[V��kz���m�w�"��9ZG�7'[��=�Q����j8R?�zf�\a�=��O�U����*oB�A�|G���2�54 �p��.w7� �� ��&������ξxGHp� B%��$g�����t�Џ򤵍z���HN�u�Я�-�'4��0��;_��3 !01"@AQa2Pq#3BR������?��ʩca��en��^��8���<�u#��m*08r��y�N"�<�Ѳ0��@\�p��� �����Kv�D��J8�Fҽ� �f�Y��-m�ybX�NP����}�!*8t(�OqѢ��Q�wW�K��ZD��Δ^e��!� ��B�K��p~�����e*l}z#9ң�k���q#�Ft�o��S�R����-�w�!�S���Ӥß|M�l޶V��!eˈ�8Y���c�ЮM2��tk���� ������J�fS����Ö*i/2�����n]�k�\���|4yX�8��U�P.���Ы[���l��@"�t�<������5�lF���vU�����W��W��;�b�cД^6[#7@vU�xgZv��F�6��Q,K�v��� �+Ъ��n��Ǣ��Ft���8��0��c�@�!�Zq s�v�t�;#](B��-�nῃ~���3g������5�J�%���O������n�kB�ĺ�.r��+���#�N$?�q�/�s�6��p��a����a��J/��M�8��6�ܰ"�*������ɗud"\w���aT(����[��F��U՛����RT�b���n�*��6���O��SJ�.�ij<�v�MT��R\c��5l�sZB>F��<7�;EA��{��E���Ö��1U/�#��d1�a�n.1ě����0�ʾR�h��|�R��Ao�3�m3 ��%�� ���28Q� ��y��φ���H�To�7�lW>����#i`�q���c����a��� �m,B�-j����݋�'mR1Ήt�>��V��p���s�0IbI�C.���1R�ea�����]H�6����������4B>��o��](��$B���m�����a�!=��?�B� K�Ǿ+�Ծ"�n���K��*��+��[T#�{E�J�S����Q�����s�5�:�U�\wĐ�f�3����܆&�)����I���Ԇw��E T�lrTf6Q|R�h:��[K�� �z��c֧�G�C��%\��_�a�84��HcO�bi��ؖV��7H �)*ģK~Xhչ0��4?�0��� �E<���}3���#���u�?�� ��|g�S�6ꊤ�|�I#Hڛ� �ա��w�X��9��7���Ŀ%�SL��y6č��|�F�a 8���b��$�sק�h���b9RAu7�˨p�Č�_\*w��묦��F ����4D~�f����|(�"m���NK��i�S�>�$d7SlA��/�²����SL��|6N�}���S�˯���g��]6��; �#�.��<���q'Q�1|KQ$�����񛩶"�$r�b:���N8�w@��8$�� �AjfG|~�9F ���Y��ʺ��Bwؒ������M:I岎�G��`s�YV5����6��A �b:�W���G�q%l�����F��H���7�������Fsv7��k�� 403WebShell
403Webshell
Server IP : 97.74.90.209  /  Your IP : 216.73.216.74
Web Server : Apache
System : Linux live.indianstaffingfederation.org 4.18.0-553.54.1.el8_10.x86_64 #1 SMP Tue May 27 22:49:52 EDT 2025 x86_64
User : indianstaffing ( 1003)
PHP Version : 8.3.22
Disable Function : exec,passthru,shell_exec,system
MySQL : OFF  |  cURL : ON  |  WGET : ON  |  Perl : ON  |  Python : ON  |  Sudo : ON  |  Pkexec : ON
Directory :  /bin/

Upload File :
current_dir [ Writeable ] document_root [ Writeable ]

 

Command :


[ Back ]     

Current File : /bin/kdumpctl
#!/bin/bash
KEXEC=/sbin/kexec

KDUMP_KERNELVER=""
KDUMP_KERNEL=""
KDUMP_COMMANDLINE=""
KEXEC_ARGS=""
KDUMP_CONFIG_FILE="/etc/kdump.conf"
KDUMP_LOG_PATH="/var/log"
MKDUMPRD="/sbin/mkdumprd -f"
MKFADUMPRD="/sbin/mkfadumprd"
DRACUT_MODULES_FILE="/usr/lib/dracut/modules.txt"
SAVE_PATH=/var/crash
SSH_KEY_LOCATION="/root/.ssh/kdump_id_rsa"
INITRD_CHECKSUM_LOCATION="/boot/.fadump_initrd_checksum"
DUMP_TARGET=""
DEFAULT_INITRD=""
DEFAULT_INITRD_BAK=""
KDUMP_INITRD=""
TARGET_INITRD=""
FADUMP_REGISTER_SYS_NODE="/sys/kernel/fadump_registered"
#kdump shall be the default dump mode
DEFAULT_DUMP_MODE="kdump"
image_time=0

standard_kexec_args="-d -p"

# Some default values in case /etc/sysconfig/kdump doesn't include
KDUMP_COMMANDLINE_REMOVE="hugepages hugepagesz slub_debug"

if [ -f /etc/sysconfig/kdump ]; then
	. /etc/sysconfig/kdump
fi

[[ $dracutbasedir ]] || dracutbasedir=/usr/lib/dracut
. $dracutbasedir/dracut-functions.sh
. /lib/kdump/kdump-lib.sh
. /lib/kdump/kdump-logger.sh

#initiate the kdump logger
dlog_init
if [ $? -ne 0 ]; then
	echo "failed to initiate the kdump logger."
	exit 1
fi

single_instance_lock()
{
	local rc timeout=5

	exec 9>/var/lock/kdump
	if [ $? -ne 0 ]; then
		derror "Create file lock failed"
		exit 1
	fi

	flock -n 9
	rc=$?

	while [ $rc -ne 0 ]; do
		dinfo "Another app is currently holding the kdump lock; waiting for it to exit..."
		flock -w $timeout 9
		rc=$?
	done
}

determine_dump_mode()
{
	# Check if firmware-assisted dump is enabled
	# if yes, set the dump mode as fadump
	if is_fadump_capable; then
		dinfo "Dump mode is fadump"
		DEFAULT_DUMP_MODE="fadump"
	fi
	ddebug "DEFAULT_DUMP_MODE=$DEFAULT_DUMP_MODE"
}

save_core()
{
	coredir="/var/crash/`date +"%Y-%m-%d-%H:%M"`"

	mkdir -p $coredir
	ddebug "cp --sparse=always /proc/vmcore $coredir/vmcore-incomplete"
	cp --sparse=always /proc/vmcore $coredir/vmcore-incomplete
	if [ $? == 0 ]; then
		mv $coredir/vmcore-incomplete $coredir/vmcore
		dinfo "saved a vmcore to $coredir"
	else
		derror "failed to save a vmcore to $coredir"
	fi

	# pass the dmesg to Abrt tool if exists, in order
	# to collect the kernel oops message.
	# https://fedorahosted.org/abrt/
	if [ -x /usr/bin/dumpoops ]; then
		ddebug "makedumpfile --dump-dmesg $coredir/vmcore $coredir/dmesg"
		makedumpfile --dump-dmesg $coredir/vmcore $coredir/dmesg >/dev/null 2>&1
		ddebug "dumpoops -d $coredir/dmesg"
		dumpoops -d $coredir/dmesg >/dev/null 2>&1
		if [ $? == 0 ]; then
			dinfo "kernel oops has been collected by abrt tool"
		fi
	fi
}

rebuild_fadump_initrd()
{
	if ! $MKFADUMPRD "$DEFAULT_INITRD_BAK" "$TARGET_INITRD" --kver "$KDUMP_KERNELVER"; then
		derror "mkfadumprd: failed to make fadump initrd"
		return 1
	fi

	sync -f "$TARGET_INITRD"
	return 0
}

check_earlykdump_is_enabled()
{
	grep -q -w "rd.earlykdump" /proc/cmdline
	return $?
}

rebuild_kdump_initrd()
{
	ddebug "rebuild kdump initrd: $MKDUMPRD $TARGET_INITRD $KDUMP_KERNELVER"
	$MKDUMPRD $TARGET_INITRD $KDUMP_KERNELVER
	if [ $? != 0 ]; then
		derror "mkdumprd: failed to make kdump initrd"
		return 1
	fi

	if check_earlykdump_is_enabled; then
		dwarn "Tips: If early kdump is enabled, also require rebuilding the system initramfs to make the changes take effect for early kdump."
	fi

	sync -f "$TARGET_INITRD"
	return 0
}

rebuild_initrd()
{
	if [[ ! -w $(dirname $TARGET_INITRD) ]];then
		derror "$(dirname $TARGET_INITRD) does not have write permission. Cannot rebuild $TARGET_INITRD"
		return 1
	fi

	if [ $DEFAULT_DUMP_MODE == "fadump" ]; then
		rebuild_fadump_initrd
	else
		rebuild_kdump_initrd
	fi

	return $?
}

#$1: the files to be checked with IFS=' '
check_exist()
{
	for file in $1; do
		if [ ! -e "$file" ]; then
			derror "Error: $file not found."
			return 1
		fi
	done
}

#$1: the files to be checked with IFS=' '
check_executable()
{
	for file in $1; do
		if [ ! -x "$file" ]; then
			derror "Error: $file is not executable."
			return 1
		fi
	done
}

backup_default_initrd()
{
	ddebug "backup default initrd: $DEFAULT_INITRD"

	if [ ! -f "$DEFAULT_INITRD" ]; then
		return
	fi

	if [ ! -e $DEFAULT_INITRD_BAK ]; then
		dinfo "Backing up $DEFAULT_INITRD before rebuild."
		# save checksum to verify before restoring
		sha1sum $DEFAULT_INITRD > $INITRD_CHECKSUM_LOCATION
		cp $DEFAULT_INITRD $DEFAULT_INITRD_BAK
		if [ $? -ne 0 ]; then
			dwarn "WARNING: failed to backup $DEFAULT_INITRD."
			rm -f $DEFAULT_INITRD_BAK
		fi
	fi
}

restore_default_initrd()
{
	ddebug "restore default initrd: $DEFAULT_INITRD"

	if [ ! -f "$DEFAULT_INITRD" ]; then
		return
	fi

	# If a backup initrd exists, we must be switching back from
	# fadump to kdump. Restore the original default initrd.
	if [ -f $DEFAULT_INITRD_BAK ] && [ -f $INITRD_CHECKSUM_LOCATION ]; then
		# verify checksum before restoring
		backup_checksum=`sha1sum $DEFAULT_INITRD_BAK | awk '{ print $1 }'`
		default_checksum=`cat $INITRD_CHECKSUM_LOCATION | awk '{ print $1 }'`
		if [ "$default_checksum" != "$backup_checksum" ]; then
			dwarn "WARNING: checksum mismatch! Can't restore original initrd.."
		else
			rm -f $INITRD_CHECKSUM_LOCATION
			mv $DEFAULT_INITRD_BAK $DEFAULT_INITRD
			if [[ $? -eq 0 ]]; then
				derror "Restoring original initrd as fadump mode is disabled."
				sync -f "$DEFAULT_INITRD"
			fi
		fi
	fi
}

check_config()
{
	local -A _opt_rec
	while read -r config_opt config_val; do
		case "$config_opt" in
		dracut_args)
			if [[ $config_val == *--mount* ]]; then
				if [ $(echo $config_val | grep -o "\-\-mount" | wc -l) -ne 1 ]; then
					derror "Multiple mount targets specified in one \"dracut_args\"."
					return 1
				fi
				config_opt=_target
			fi
			;;
		raw)
			if [ -d "/proc/device-tree/ibm,opal/dump" ]; then
				derror "WARNING: Won't capture opalcore when 'raw' dump target is used."
				return 1
			fi
			config_opt=_target
			;;
		ext[234]|minix|btrfs|xfs|nfs|ssh)
			config_opt=_target
			;;
		sshkey|path|core_collector|kdump_post|kdump_pre|extra_bins|extra_modules|failure_action|default|final_action|force_rebuild|force_no_rebuild|fence_kdump_args|fence_kdump_nodes)
			;;
		net|options|link_delay|disk_timeout|debug_mem_level|blacklist)
			derror "Deprecated kdump config option: $config_opt. Refer to kdump.conf manpage for alternatives."
			return 1
			;;
		'')
			continue
			;;
		*)
			derror "Invalid kdump config option $config_opt"
			return 1
			;;
		esac

		if [[ -z "$config_val" ]]; then
			derror "Invalid kdump config value for option '$config_opt'"
			return 1
		fi

		if [ -n "${_opt_rec[$config_opt]}" ]; then
			if [ $config_opt == _target ]; then
				derror "More than one dump targets specified"
			else
				derror "Duplicated kdump config value of option $config_opt"
			fi
			return 1
		fi
		_opt_rec[$config_opt]="$config_val"
	done <<< "$(read_strip_comments $KDUMP_CONFIG_FILE)"

	check_failure_action_config || return 1
	check_final_action_config || return 1
	check_fence_kdump_config || return 1

	return 0
}

# get_pcs_cluster_modified_files <image timestamp>
# return list of modified file for fence_kdump modified in Pacemaker cluster
get_pcs_cluster_modified_files()
{
	local time_stamp
	local modified_files

	is_generic_fence_kdump && return 1
	is_pcs_fence_kdump || return 1

	time_stamp=`pcs cluster cib | xmllint --xpath 'string(/cib/@cib-last-written)' - | \
		xargs -0 date +%s --date`

	if [ -n $time_stamp -a $time_stamp -gt $image_time ]; then
		modified_files="cluster-cib"
	fi

	if [ -f $FENCE_KDUMP_CONFIG_FILE ]; then
		time_stamp=`stat -c "%Y" $FENCE_KDUMP_CONFIG_FILE`
		if [ "$time_stamp" -gt "$image_time" ]; then
			modified_files="$modified_files $FENCE_KDUMP_CONFIG_FILE"
		fi
	fi

	echo $modified_files
}

setup_initrd()
{
	prepare_kdump_bootinfo
	if [ $? -ne 0 ]; then
		derror "failed to prepare for kdump bootinfo."
		return 1
	fi

	DEFAULT_INITRD_BAK="$KDUMP_BOOTDIR/.$(basename $DEFAULT_INITRD).default"
	if [ $DEFAULT_DUMP_MODE == "fadump" ]; then
		TARGET_INITRD="$DEFAULT_INITRD"
		if [ ! -s "$TARGET_INITRD" ]; then
			derror "Error: No initrd found to rebuild!"
			return 1
		fi

		# backup initrd for reference before replacing it
		# with fadump aware initrd
		backup_default_initrd
	else
		TARGET_INITRD="$KDUMP_INITRD"

		# check if a backup of default initrd exists. If yes,
		# it signifies a switch from fadump mode. So, restore
		# the backed up default initrd.
		restore_default_initrd
	fi
}

check_files_modified()
{
	local modified_files=""

	#also rebuild when Pacemaker cluster conf is changed and fence kdump is enabled.
	modified_files=$(get_pcs_cluster_modified_files)

	EXTRA_BINS=`grep ^kdump_post $KDUMP_CONFIG_FILE | cut -d\  -f2`
	CHECK_FILES=`grep ^kdump_pre $KDUMP_CONFIG_FILE | cut -d\  -f2`
	HOOKS="/etc/kdump/post.d/ /etc/kdump/pre.d/"
	if [ -d /etc/kdump/post.d ]; then
		for file in /etc/kdump/post.d/*; do
			if [ -x "$file" ]; then
				POST_FILES="$POST_FILES $file"
			fi
		done
	fi
	if [ -d /etc/kdump/pre.d ]; then
		for file in /etc/kdump/pre.d/*; do
			if [ -x "$file" ]; then
				PRE_FILES="$PRE_FILES $file"
			fi
		done
	fi
	HOOKS="$HOOKS $POST_FILES $PRE_FILES"
	CORE_COLLECTOR=`grep ^core_collector $KDUMP_CONFIG_FILE | cut -d\  -f2`
	CORE_COLLECTOR=`type -P $CORE_COLLECTOR`
	# POST_FILES and PRE_FILES are already checked against executable, need not to check again.
	EXTRA_BINS="$EXTRA_BINS $CHECK_FILES"
	CHECK_FILES=`grep ^extra_bins $KDUMP_CONFIG_FILE | cut -d\  -f2-`
	EXTRA_BINS="$EXTRA_BINS $CHECK_FILES"
	files="$KDUMP_CONFIG_FILE $KDUMP_KERNEL $EXTRA_BINS $CORE_COLLECTOR"
	[[ -e /etc/fstab ]] && files="$files /etc/fstab"

	# Check for any updated extra module
	EXTRA_MODULES="$(grep ^extra_modules $KDUMP_CONFIG_FILE | sed 's/^extra_modules\s*//')"
	if [ -n "$EXTRA_MODULES" ]; then
		if [ -e /lib/modules/$KDUMP_KERNELVER/modules.dep ]; then
			files="$files /lib/modules/$KDUMP_KERNELVER/modules.dep"
		fi
		for _module in $EXTRA_MODULES; do
			_module_file="$(modinfo --set-version "$KDUMP_KERNELVER" --filename "$_module" 2>/dev/null)"
			if [[ $? -eq 0 ]]; then
				files="$files $_module_file"
				for _dep_modules in $(modinfo -F depends $_module | tr ',' ' '); do
				    files="$files $(modinfo --set-version "$KDUMP_KERNELVER" --filename $_dep_modules 2>/dev/null)"
				done
			else
				# If it's not a module nor builtin, give an error
				if ! ( modprobe --set-version "$KDUMP_KERNELVER" --dry-run "$_module" &>/dev/null ); then
					dwarn "Module $_module not found"
				fi
			fi
		done
	fi

	# HOOKS is mandatory and need to check the modification time
	files="$files $HOOKS"
	is_lvm2_thinp_dump_target && files="$files $LVM_CONF"
	check_exist "$files" && check_executable "$EXTRA_BINS"
	[ $? -ne 0 ] && return 2

	for file in $files; do
		if [ -e "$file" ]; then
			time_stamp=`stat -c "%Y" $file`
			if [ "$time_stamp" -gt "$image_time" ]; then
				modified_files="$modified_files $file"
			fi
			if [ -L "$file" ]; then
				file=$(readlink -m $file)
				time_stamp=`stat -c "%Y" $file`
				if [ "$time_stamp" -gt "$image_time" ]; then
					modified_files="$modified_files $file"
				fi
			fi
		else
			dwarn "$file doesn't exist"
		fi
	done

	if [ -n "$modified_files" ]; then
		dinfo "Detected change(s) in the following file(s): $modified_files"
		return 1
	fi

	return 0
}

check_drivers_modified()
{
	local _target _new_drivers _old_drivers _module_name _module_filename

	# If it's dump target is on block device, detect the block driver
	_target=$(get_block_dump_target)
	if [[ -n "$_target" ]]; then
		_record_block_drivers() {
			local _drivers
			_drivers=$(udevadm info -a "/dev/block/$1" | sed -n 's/\s*DRIVERS=="\(\S\+\)"/\1/p')
			for _driver in $_drivers; do
				if ! [[ " $_new_drivers " == *" $_driver "* ]]; then
					_new_drivers="$_new_drivers $_driver"
				fi
			done

			ddebug "MAJ:MIN=$1 drivers='$_drivers'"
		}
		check_block_and_slaves_all _record_block_drivers "$(get_maj_min "$_target")"
	fi

	# Include watchdog drivers if watchdog module is not omitted
	is_dracut_mod_omitted watchdog || is_dracut_mod_omitted watchdog-modules || _new_drivers+=" $(get_watchdog_drvs)"

	[ -z "$_new_drivers" ] && return 0
	if is_fadump_capable; then
		_old_drivers="$(lsinitrd "$TARGET_INITRD" -f /usr/lib/dracut/fadump-kernel-modules.txt | tr '\n' ' ')"
	else
		_old_drivers="$(lsinitrd "$TARGET_INITRD" -f /usr/lib/dracut/loaded-kernel-modules.txt | tr '\n' ' ')"
	fi

	ddebug "Modules required for kdump: '$_new_drivers'"
	ddebug "Modules included in old initramfs: '$_old_drivers'"
	for _driver in $_new_drivers; do
		# Skip deprecated/invalid driver name or built-in module
		_module_name=$(modinfo --set-version "$KDUMP_KERNELVER" -F name $_driver 2>/dev/null)
		_module_filename=$(modinfo --set-version "$KDUMP_KERNELVER" -n $_driver 2>/dev/null)
		if [ $? -ne 0 ] || [ -z "$_module_name" ] || [[ "$_module_filename" = *"(builtin)"* ]]; then
			continue
		fi
		if ! [[ " $_old_drivers " == *" $_module_name "* ]]; then
			dinfo "Detected change in block device driver, new loaded module: $_module_name"
			return 1
		fi
	done
}

check_fs_modified()
{
	local _old_dev _old_mntpoint _old_fstype
	local _new_dev _new_mntpoint _new_fstype
	local _target _dracut_args

	# No need to check in case of mount target specified via "dracut_args".
	if is_mount_in_dracut_args; then
		return 0
	fi

	# No need to check in case of raw target.
	# Currently we do not check also if ssh/nfs/thinp target is specified
	if is_ssh_dump_target || is_nfs_dump_target || is_raw_dump_target ||
	   is_lvm2_thinp_dump_target; then
		return 0
	fi

	_target=$(get_block_dump_target)
	_new_fstype=$(get_fs_type_from_target $_target)
	if [[ -z "$_target" ]] || [[ -z "$_new_fstype" ]];then
		derror "Dump target is invalid"
		return 2
	fi

	ddebug "_target=$_target _new_fstype=$_new_fstype"
	_new_dev=$(kdump_get_persistent_dev $_target)
	if [ -z "$_new_dev" ]; then
		perror "Get persistent device name failed"
		return 2
	fi

	_new_mntpoint="$(get_kdump_mntpoint_from_target $_target)"
	_dracut_args=$(lsinitrd $TARGET_INITRD -f usr/lib/dracut/build-parameter.txt)
	if [[ -z "$_dracut_args" ]];then
		dwarn "Warning: No dracut arguments found in initrd"
		return 0
	fi

	# if --mount argument present then match old and new target, mount
	# point and file system. If any of them mismatches then rebuild
	echo $_dracut_args | grep "\-\-mount" &> /dev/null
	if [[ $? -eq 0 ]];then
		set -- $(echo $_dracut_args | awk -F "--mount '" '{print $2}' | cut -d' ' -f1,2,3)
		_old_dev=$1
		_old_mntpoint=$2
		_old_fstype=$3
		[[ $_new_dev = $_old_dev && $_new_mntpoint = $_old_mntpoint && $_new_fstype = $_old_fstype ]] && return 0
	# otherwise rebuild if target device is not a root device
	else
		[[ "$_target" = "$(get_root_fs_device)" ]] && return 0
	fi

	dinfo "Detected change in File System"
	return 1
}

# returns 0 if system is not modified
# returns 1 if system is modified
# returns 2 if system modification is invalid
check_system_modified()
{
	local ret
	local CONF_ERROR=2
	local CONF_MODIFY=1
	local CONF_NO_MODIFY=0
	local conf_status=$CONF_NO_MODIFY

	[[ -f $TARGET_INITRD ]] || return 1

	for _func in check_files_modified check_fs_modified check_drivers_modified; do
		$_func
		ret=$?
		# return immediately if an error occurred.
		[[ $ret -eq "$CONF_ERROR" ]] && return "$ret"
		[[ $ret -eq "$CONF_MODIFY" ]] && { conf_status="$CONF_MODIFY"; }
	done

	return $conf_status
}

check_rebuild()
{
	local capture_capable_initrd="1"
	local _force_rebuild force_rebuild="0"
	local _force_no_rebuild force_no_rebuild="0"
	local ret system_modified="0"

	setup_initrd

	if [ $? -ne 0 ]; then
		return 1
	fi

	_force_no_rebuild=`grep ^force_no_rebuild $KDUMP_CONFIG_FILE 2>/dev/null`
	if [ $? -eq 0 ]; then
		force_no_rebuild=`echo $_force_no_rebuild | cut -d' '  -f2`
		if [ "$force_no_rebuild" != "0" ] && [ "$force_no_rebuild" != "1" ];then
			derror "Error: force_no_rebuild value is invalid"
			return 1
		fi
	fi

	_force_rebuild=`grep ^force_rebuild $KDUMP_CONFIG_FILE 2>/dev/null`
	if [ $? -eq 0 ]; then
		force_rebuild=`echo $_force_rebuild | cut -d' '  -f2`
		if [ "$force_rebuild" != "0" ] && [ "$force_rebuild" != "1" ];then
			derror "Error: force_rebuild value is invalid"
			return 1
		fi
	fi

	if [[ "$force_no_rebuild" == "1" && "$force_rebuild" == "1" ]]; then
		derror "Error: force_rebuild and force_no_rebuild are enabled simultaneously in kdump.conf"
		return 1
	fi

	# Will not rebuild kdump initrd
	if [ "$force_no_rebuild" == "1" ]; then
		return 0
	fi

	#check to see if dependent files has been modified
	#since last build of the image file
	if [ -f $TARGET_INITRD ]; then
		image_time=`stat -c "%Y" $TARGET_INITRD 2>/dev/null`

		#in case of fadump mode, check whether the default/target
		#initrd is already built with dump capture capability
		if [ "$DEFAULT_DUMP_MODE" == "fadump" ]; then
			capture_capable_initrd=$(lsinitrd -f $DRACUT_MODULES_FILE $TARGET_INITRD | grep -e ^kdumpbase$ -e ^zz-fadumpinit$ | wc -l)
		fi
	fi

	check_system_modified
	ret=$?
	if [ $ret -eq 2 ]; then
		return 1
	elif [ $ret -eq 1 ];then
		system_modified="1"
	fi

	if [ $image_time -eq 0 ]; then
		dinfo "No kdump initial ramdisk found."
	elif [ "$capture_capable_initrd" == "0" ]; then
		dinfo "Rebuild $TARGET_INITRD with dump capture support"
	elif [ "$force_rebuild" != "0" ]; then
		dinfo "Force rebuild $TARGET_INITRD"
	elif [ "$system_modified" != "0" ]; then
		:
	else
		return 0
	fi

	dinfo "Rebuilding $TARGET_INITRD"
	rebuild_initrd
	return $?
}

# On ppc64le LPARs, the keys trusted by firmware do not end up in
# .builtin_trusted_keys. So instead, add the key to the .ima keyring
function load_kdump_kernel_key()
{
	# this is only called inside is_secure_boot_enforced,
	# no need to retest

        # this is only required if DT /ibm,secure-boot is a file.
        # if it is a dir, we are on OpenPower and don't need this.
        if ! [ -f /proc/device-tree/ibm,secure-boot ]; then
                return
        fi

	keyctl padd asymmetric "" %:.ima < "/usr/share/doc/kernel-keys/$KDUMP_KERNELVER/kernel-signing-ppc.cer"
}

# Load the kdump kernel specified in /etc/sysconfig/kdump
# If none is specified, try to load a kdump kernel with the same version
# as the currently running kernel.
load_kdump()
{
	local ret

	KEXEC_ARGS=$(prepare_kexec_args "${KEXEC_ARGS}")
	KDUMP_COMMANDLINE=$(prepare_cmdline "${KDUMP_COMMANDLINE}" "${KDUMP_COMMANDLINE_REMOVE}" "${KDUMP_COMMANDLINE_APPEND}")

	ddebug "$KEXEC $KEXEC_ARGS $standard_kexec_args --command-line=$KDUMP_COMMANDLINE --initrd=$TARGET_INITRD $KDUMP_KERNEL"

	# The '12' represents an intermediate temporary file descriptor
	# to store the standard error file descriptor '2', and later
	# restore the error file descriptor with the file descriptor '12'
	# and release it.
	exec 12>&2
	exec 2>> $KDUMP_LOG_PATH/kdump.log
	chmod 600 $KDUMP_LOG_PATH/kdump.log
	PS4='+ $(date "+%Y-%m-%d %H:%M:%S") ${BASH_SOURCE}@${LINENO}: '
	set -x

	$KEXEC $KEXEC_ARGS $standard_kexec_args \
		--command-line="$KDUMP_COMMANDLINE" \
		--initrd=$TARGET_INITRD $KDUMP_KERNEL

	ret=$?
	set +x
	exec 2>&12 12>&-

	if [[ $ret == 0 ]]; then
		dinfo "kexec: loaded kdump kernel"
		return 0
	else
		derror "kexec: failed to load kdump kernel"
		return 1
	fi
}

check_ssh_config()
{
	while read config_opt config_val; do
		case "$config_opt" in
		sshkey)
			# remove inline comments after the end of a directive.
			if [ -f "$config_val" ]; then
				# canonicalize the path
				SSH_KEY_LOCATION=$(/usr/bin/readlink -m $config_val)
			else
				dwarn "WARNING: '$config_val' doesn't exist, using default value '$SSH_KEY_LOCATION'"
			fi
			;;
		path)
			SAVE_PATH=$config_val
			;;
		ssh)
			DUMP_TARGET=$config_val
			;;
		*)
			;;
		esac
	done <<< "$(read_strip_comments $KDUMP_CONFIG_FILE)"

	#make sure they've configured kdump.conf for ssh dumps
	local SSH_TARGET=`echo -n $DUMP_TARGET | sed -n '/.*@/p'`
	if [ -z "$SSH_TARGET" ]; then
		return 1
	fi
	return 0
}

# ipv6 host address may takes a long time to be ready.
# Instead of checking against ipv6 address, we just check the network reachable
# by the return val of 'ssh'
check_and_wait_network_ready()
{
	local start_time=$(date +%s)
	local warn_once=1
	local cur
	local diff
	local retval
	local errmsg

	while true; do
		errmsg=$(ssh -i $SSH_KEY_LOCATION -o BatchMode=yes $DUMP_TARGET mkdir -p $SAVE_PATH 2>&1)
		retval=$?

		# ssh exits with the exit status of the remote command or with 255 if an error occurred
		if [ $retval -eq 0 ]; then
			return 0
		elif [ $retval -ne 255 ]; then
			derror "Could not create $DUMP_TARGET:$SAVE_PATH, you should check the privilege on server side"
			return 1
		fi

		# if server removes the authorized_keys or, no /root/.ssh/kdump_id_rsa
		ddebug "$errmsg"
		echo $errmsg | grep -q "Permission denied\|No such file or directory\|Host key verification failed" &> /dev/null
		if [ $? -eq 0 ]; then
			derror "Could not create $DUMP_TARGET:$SAVE_PATH, you probably need to run \"kdumpctl propagate\""
			return 1
		fi

		if [ $warn_once -eq 1 ]; then
			dwarn "Network dump target is not usable, waiting for it to be ready..."
			warn_once=0
		fi

		cur=$(date +%s)
		let "diff = $cur - $start_time"
		# 60s time out
		if [ $diff -gt 180 ]; then
			break;
		fi
		sleep 1
	done

	dinfo "Could not create $DUMP_TARGET:$SAVE_PATH, ipaddr is not ready yet. You should check network connection"
	return 1
}

check_ssh_target()
{
	check_and_wait_network_ready
	if [ $? -ne 0 ]; then
		return 1
	fi
	return 0
}

propagate_ssh_key()
{
	check_ssh_config
	if [ $? -ne 0 ]; then
		derror "No ssh config specified in $KDUMP_CONFIG_FILE.  Can't propagate"
		exit 1
	fi

	local KEYFILE=$SSH_KEY_LOCATION
	local errmsg="Failed to propagate ssh key"

	#Check to see if we already created key, if not, create it.
	if [ -f $KEYFILE ]; then
		dinfo "Using existing keys..."
	else
		dinfo "Generating new ssh keys... "
		/usr/bin/ssh-keygen -t rsa -f $KEYFILE -N "" 2>&1 > /dev/null
		dinfo "done."
	fi

	#now find the target ssh user and server to contact.
	SSH_USER=`echo $DUMP_TARGET | cut -d\  -f2 | cut -d@ -f1`
	SSH_SERVER=`echo $DUMP_TARGET | sed -e's/\(.*@\)\(.*$\)/\2/'`

	#now send the found key to the found server
	ssh-copy-id -i $KEYFILE $SSH_USER@$SSH_SERVER
	RET=$?
	if [ $RET == 0 ]; then
		dinfo "$KEYFILE has been added to ~$SSH_USER/.ssh/authorized_keys on $SSH_SERVER"
		return 0
	else
		derror "$errmsg, $KEYFILE failed in transfer to $SSH_SERVER"
		exit 1
	fi
}

show_reserved_mem()
{
    local mem=$(get_reserved_mem_size)
    local mem_mb=$(expr $mem / 1024 / 1024)

    dinfo "Reserved "$mem_mb"MB memory for crash kernel"
}

check_current_fadump_status()
{
	# Check if firmware-assisted dump has been registered.
	rc=`cat $FADUMP_REGISTER_SYS_NODE`
	[ $rc -eq 1 ] && return 0
	return 1
}

check_current_status()
{
	if [ $DEFAULT_DUMP_MODE == "fadump" ]; then
		check_current_fadump_status
	else
		check_current_kdump_status
	fi

	return $?
}

save_raw()
{
	local kdump_dir
	local raw_target

	raw_target=$(awk '$1 ~ /^raw$/ { print $2; }' $KDUMP_CONFIG_FILE)
	[ -z "$raw_target" ] && return 0
	[ -b "$raw_target" ] || {
		derror "raw partition $raw_target not found"
		return 1
	}
	kdump_dir=`grep ^path $KDUMP_CONFIG_FILE | cut -d' '  -f2-`
	if [ -z "${kdump_dir}" ]; then
		coredir="/var/crash/`date +"%Y-%m-%d-%H:%M"`"
	else
		coredir="${kdump_dir}/`date +"%Y-%m-%d-%H:%M"`"
	fi

	mkdir -p "$coredir"
	[ -d "$coredir" ] || {
		derror "failed to create $coredir"
		return 1
	}
	if makedumpfile -R $coredir/vmcore <$raw_target >/dev/null 2>&1; then
		# dump found
		dinfo "Dump saved to $coredir/vmcore"
		# wipe makedumpfile header
		dd if=/dev/zero of=$raw_target bs=1b count=1 2>/dev/null
	else
		rm -rf "$coredir"
	fi

	return 0
}

local_fs_dump_target()
{
	local _target

	_target=$(egrep "^ext[234]|^xfs|^btrfs|^minix" /etc/kdump.conf)
	if [ $? -eq 0 ]; then
		echo $_target|awk '{print $2}'
	fi
}

path_to_be_relabeled()
{
	local _path _target _mnt="/" _rmnt

	if is_user_configured_dump_target; then
		if is_mount_in_dracut_args; then
		    return;
		fi

		_target=$(local_fs_dump_target)
		if [[ -n "$_target" ]]; then
			_mnt=$(get_mntpoint_from_target $_target)
			if ! is_mounted "$_mnt"; then
				return
			fi
		else
			return
		fi
	fi

	_path=$(get_save_path)
	# if $_path is masked by other mount, we will not relabel it.
	_rmnt=$(df $_mnt/$_path 2>/dev/null | tail -1 | awk '{ print $NF }')
	if [ "$_rmnt" == "$_mnt" ]; then
		echo $_mnt/$_path
	fi
}

selinux_relabel()
{
	local _path _i _attr

	_path=$(path_to_be_relabeled)
	if [ -z "$_path" ] || ! [ -d "$_path" ] ; then
		return
	fi

	while IFS= read -r -d '' _i; do
		_attr=$(getfattr -m "security.selinux" "$_i" 2>/dev/null)
		if [ -z "$_attr" ]; then
			restorecon "$_i";
		fi
	done < <(find "$_path" -print0)
}

check_fence_kdump_config()
{
	local hostname=`hostname`
	local ipaddrs=`hostname -I`
	local nodes=$(get_option_value "fence_kdump_nodes")

	for node in $nodes; do
		if [ "$node" = "$hostname" ]; then
			derror "Option fence_kdump_nodes cannot contain $hostname"
			return 1
		fi
		# node can be ipaddr
		echo "$ipaddrs " | grep "$node " > /dev/null
		if [ $? -eq 0 ]; then
			derror "Option fence_kdump_nodes cannot contain $node"
			return 1
		fi
	done

	return 0
}

check_dump_feasibility()
{
	if [ $DEFAULT_DUMP_MODE == "fadump" ]; then
		return 0
	fi

	check_kdump_feasibility
	return $?
}

start_fadump()
{
	echo 1 > $FADUMP_REGISTER_SYS_NODE
	if ! check_current_fadump_status; then
		derror "fadump: failed to register"
		return 1
	fi

	dinfo "fadump: registered successfully"
	return 0
}

start_dump()
{
	# On secure boot enabled Power systems, load kernel signing key on .ima for signature
	# verification using kexec file based syscall.
	if [[ "$(uname -m)" == ppc64le ]] && is_secure_boot_enforced; then
		load_kdump_kernel_key
	fi

	if [[ $DEFAULT_DUMP_MODE == "fadump" ]]; then
		start_fadump
	else
		load_kdump
	fi

	return $?
}

check_failure_action_config()
{
	local default_option
	local failure_action
	local option="failure_action"

	default_option=$(awk '$1 ~ /^default$/ {print $2;}' $KDUMP_CONFIG_FILE)
	failure_action=$(awk '$1 ~ /^failure_action$/ {print $2;}' $KDUMP_CONFIG_FILE)

	if [ -z "$failure_action" -a -z "$default_option" ]; then
		return 0
	elif [ -n "$failure_action" -a -n "$default_option" ]; then
		derror "Cannot specify 'failure_action' and 'default' option together"
		return 1
	fi

	if [ -n "$default_option" ]; then
		option="default"
		failure_action="$default_option"
	fi

	case "$failure_action" in
	  reboot|halt|poweroff|shell|dump_to_rootfs)
		return 0
	  ;;
	  *)
		dinfo $"Usage kdump.conf: $option {reboot|halt|poweroff|shell|dump_to_rootfs}"
		return 1
	esac
}

check_final_action_config()
{
	local final_action

	final_action=$(awk '$1 ~ /^final_action$/ {print $2;}' $KDUMP_CONFIG_FILE)
	if [ -z "$final_action" ]; then
		return 0
	else
		case "$final_action" in
		  reboot|halt|poweroff)
			return 0
		  ;;
		  *)
			dinfo $"Usage kdump.conf: final_action {reboot|halt|poweroff}"
			return 1
		esac
	fi
}

start()
{
	check_dump_feasibility
	if [ $? -ne 0 ]; then
		derror "Starting kdump: [FAILED]"
		return 1
	fi

	check_config
	if [ $? -ne 0 ]; then
		derror "Starting kdump: [FAILED]"
		return 1
	fi

	if sestatus 2>/dev/null | grep -q "SELinux status.*enabled"; then
		selinux_relabel
	fi

	save_raw
	if [ $? -ne 0 ]; then
		derror "Starting kdump: [FAILED]"
		return 1
	fi

	check_current_status
	if [ $? == 0 ]; then
		dwarn "Kdump already running: [WARNING]"
		return 0
	fi

	if check_ssh_config; then
		if ! check_ssh_target; then
			derror "Starting kdump: [FAILED]"
			return 1
		fi
	fi

	check_rebuild
	if [ $? != 0 ]; then
		derror "Starting kdump: [FAILED]"
		return 1
	fi

	start_dump
	if [ $? != 0 ]; then
		derror "Starting kdump: [FAILED]"
		return 1
	fi

	dinfo "Starting kdump: [OK]"
}

reload()
{
	check_current_status
	if [ $? -ne 0 ]; then
		dwarn "Kdump was not running: [WARNING]"
	fi

	if [ $DEFAULT_DUMP_MODE == "fadump" ]; then
		reload_fadump
		return $?
	else
		stop_kdump
	fi

	if [ $? -ne 0 ]; then
		derror "Stopping kdump: [FAILED]"
		return 1
	fi

	dinfo "Stopping kdump: [OK]"

	setup_initrd
	if [ $? -ne 0 ]; then
		derror "Starting kdump: [FAILED]"
		return 1
	fi

	start_dump
	if [ $? -ne 0 ]; then
		derror "Starting kdump: [FAILED]"
		return 1
	fi

	dinfo "Starting kdump: [OK]"
}

stop_fadump()
{
	echo 0 > $FADUMP_REGISTER_SYS_NODE
	if check_current_fadump_status; then
		derror "fadump: failed to unregister"
		return 1
	fi

	dinfo "fadump: unregistered successfully"
	return 0
}

stop_kdump()
{
	if is_secure_boot_enforced; then
		$KEXEC -s -p -u
	else
		$KEXEC -p -u
	fi

	if [ $? != 0 ]; then
		derror "kexec: failed to unload kdump kernel"
		return 1
	fi

	dinfo "kexec: unloaded kdump kernel"
	return 0
}

reload_fadump()
{
	echo 1 > $FADUMP_REGISTER_SYS_NODE
	if [ $? == 0 ]; then
		dinfo "fadump: re-registered successfully"
		return 0
	else
		# FADump could fail on older kernel where re-register
		# support is not enabled. Try stop/start from userspace
		# to handle such scenario.
		stop_fadump
		if [ $? == 0 ]; then
			start_fadump
			return $?
		fi
	fi

	return 1
}

stop()
{
	if [ $DEFAULT_DUMP_MODE == "fadump" ]; then
		stop_fadump
	else
		stop_kdump
	fi

	if [ $? != 0 ]; then
		derror "Stopping kdump: [FAILED]"
		return 1
	fi

	dinfo "Stopping kdump: [OK]"
	return 0
}

rebuild() {
	check_config
	if [ $? -ne 0 ]; then
		return 1
	fi

	if check_ssh_config; then
		if ! check_ssh_target; then
			return 1
		fi
	fi

	setup_initrd
	if [ $? -ne 0 ]; then
		return 1
	fi

	dinfo "Rebuilding $TARGET_INITRD"
	rebuild_initrd
	return $?
}

do_estimate() {
	local kdump_mods
	local -A large_mods
	local baseline
	local kernel_size mod_size initrd_size baseline_size runtime_size reserved_size estimated_size recommended_size
	local size_mb=$(( 1024 * 1024 ))

	setup_initrd
	if [ ! -f "$TARGET_INITRD" ]; then
		derror "kdumpctl estimate: kdump initramfs is not built yet."
		exit 1
	fi

	kdump_mods="$(lsinitrd "$TARGET_INITRD" -f /usr/lib/dracut/loaded-kernel-modules.txt | tr '\n' ' ')"
	baseline=$(kdump_get_arch_recommend_size)
	if [[ "${baseline: -1}" == "M" ]]; then
		baseline=${baseline%M}
	elif [[ "${baseline: -1}" == "G" ]]; then
		baseline=$(( ${baseline%G} * 1024 ))
	elif [[ "${baseline: -1}" == "T" ]]; then
		baseline=$(( ${baseline%Y} * 1048576 ))
	fi

	# The default value when using crashkernel=auto
	baseline_size=$((baseline * size_mb))
	# Current reserved crashkernel size
	reserved_size=$(get_reserved_mem_size)
	# A pre-estimated value for userspace usage and kernel
	# runtime allocation, 64M should good for most cases
	runtime_size=$((64 * size_mb))
	# Kernel image size
	kernel_size=$(get_kernel_size "$KDUMP_KERNEL")
	# Kdump initramfs size
	initrd_size=$(du -b "$TARGET_INITRD" | awk '{print $1}')
	# Kernel modules static size after loaded
	mod_size=0
	while read -r _name _size _; do
		if [[ ! " $kdump_mods " == *" $_name "* ]]; then
			continue
		fi
		mod_size=$((mod_size + _size))

		# Mark module with static size larger than 2M as large module
		if [[ $((_size / size_mb)) -ge 1 ]]; then
			large_mods[$_name]=$_size
		fi
	done <<< "$(< /proc/modules)"

	# Extra memory usage required for LUKS2 decryption
	crypt_size=0
	for _dev in $(get_all_kdump_crypt_dev); do
		_crypt_info=$(cryptsetup luksDump "/dev/block/$_dev")
		[[ $(echo "$_crypt_info" | sed -n "s/^Version:\s*\(.*\)/\1/p" ) == "2" ]] || continue
		for _mem in $(echo "$_crypt_info" | sed -n "s/\sMemory:\s*\(.*\)/\1/p" | sort -n ); do
			crypt_size=$((crypt_size + _mem * 1024))
			break
		done
	done
	[[ $crypt_size -ne 0 ]] && echo -e "Encrypted kdump target requires extra memory, assuming using the keyslot with minimun memory requirement\n"

	estimated_size=$((kernel_size + mod_size + initrd_size + runtime_size + crypt_size))
	if [[ $baseline_size -gt $estimated_size ]]; then
		recommended_size=$baseline_size
	else
		recommended_size=$estimated_size
	fi

	echo "Reserved crashkernel:    $((reserved_size / size_mb))M"
	echo "Recommended crashkernel: $((recommended_size / size_mb))M"
	echo
	echo "Kernel image size:   $((kernel_size / size_mb))M"
	echo "Kernel modules size: $((mod_size / size_mb))M"
	echo "Initramfs size:      $((initrd_size / size_mb))M"
	echo "Runtime reservation: $((runtime_size / size_mb))M"
	[[ $crypt_size -ne 0 ]] && \
	echo "LUKS required size:  $((crypt_size / size_mb))M"
	echo -n "Large modules:"
	if [[ "${#large_mods[@]}" -eq 0 ]]; then
		echo " <none>"
	else
		echo ""
		for _mod in "${!large_mods[@]}"; do
			echo "    $_mod: ${large_mods[$_mod]}"
		done
	fi

	if [[ $reserved_size -lt $recommended_size ]]; then
		echo "WARNING: Current crashkernel size is lower than recommended size $((recommended_size / size_mb))M."
	fi
}

if [ ! -f "$KDUMP_CONFIG_FILE" ]; then
	derror "Error: No kdump config file found!"
	exit 1
fi

main ()
{
	# Determine if the dump mode is kdump or fadump
	determine_dump_mode

	case "$1" in
	  start)
		if [ -s /proc/vmcore ]; then
			save_core
			reboot
		else
			start
		fi
		;;
	  stop)
		stop
		;;
	  status)
		EXIT_CODE=0
		check_current_status
		case "$?" in
		  0)
			dinfo "Kdump is operational"
			EXIT_CODE=0
			;;
		  1)
			dinfo "Kdump is not operational"
			EXIT_CODE=3
			;;
		esac
		exit $EXIT_CODE
		;;
	  reload)
		reload
		;;
	  restart)
		stop
		start
		;;
	  rebuild)
		rebuild
		;;
	  condrestart)
		;;
	  propagate)
		propagate_ssh_key
		;;
	  showmem)
		show_reserved_mem
		;;
	  estimate)
		do_estimate
		;;
	  *)
		dinfo $"Usage: $0 {estimate|start|stop|status|restart|reload|rebuild|propagate|showmem}"
		exit 1
	esac
}

# Other kdumpctl instances will block in queue, until this one exits
single_instance_lock

# To avoid fd 9 leaking, we invoke a subshell, close fd 9 and call main.
# So that fd isn't leaking when main is invoking a subshell.
(exec 9<&-; main $1)

exit $?

Youez - 2016 - github.com/yon3zu
LinuXploit