OpenBSD 7.5 banner
The OpenBSD 7.5 kuburitswa uye mushanduro itsva iyi nhevedzano ye kuvandudzika kukuru inovhara kwakasiyana siyana kuvandudza kernel, Hardware uye networking yerutsigiro yerutsigiro, Virtual Machine Monitor kuvandudzwa, nezvimwe.
Kune avo vasingazive nezve OpenBSD, iwe unofanirwa kuziva izvozvo Iyo yemahara uye yakavhurika sosi Unix-senge yekushandisa system. chengetedzo-yakatarisana software ndeye mhuri yeBSD yeanoshanda masisitimu uye inozivikanwa nezvikamu zvayo zvave kupararira mune mamwe masisitimu uye zvakaratidza kuve imwe yeakachengeteka uye yepamusoro mhando mhinduro.
Chii chitsva mu OpenBSD 7.5?
Mune iyi vhezheni nyowani yeOpenBSD 7.5 inoratidzwa, chimwe chezvakanakisa maficha ndeye Yakawedzera tsigiro kumugadziri we encrypting iyo root partition. Neizvi, vashandisi vanogona ikozvino kumisa disk encryption mune otomatiki yekuisa modhi nekutsanangura yakajeka mavara password kana nekupa makiyi pane akasiyana midhiya.
Imwe shanduko yakakosha muOpenBSD 7.5 ndeye kuvandudzwa kwekugadzikana uye kuchengetedzeka mu hypervisor. VMM (Virtual Machine Monitor), kubvira zvino lIyo vionet mudziyo emulation yakanyorwa zvachose kuti itsigire multithreading uye fambisa kuendesa data pakati pemuenzi uye muenzi mune zero-kopi modhi, kudzivirira yepakati buffering. Besides, mamwe matanho ekudzivirira akawedzerwa kuderedza kusasimba munguva pfupi yapfuura kwakabatana nekufungidzira kuraira kwekuita uye kusara kwedata kuburitswa kubva kumarejista.
Mu OpenBSD 7.5 Iyo pinsyscalls kufona yaitwa, iyo inobvumira kunyatso kudzora nekudzora system mafoni chete kunzvimbo dzakatarwa munzvimbo yekero yekuita. Ose ari maviri kernel uye ld.so anogona kunyatso kurekodha nzvimbo yekupinda yega yega system yekufona inoshandiswa nechirongwa uye libc.so, zvichibvumira nhare dzehurongwa hwemangwana kuti dzivharwe kubva kunzvimbo dzisina kutenderwa.
Mukuwedzera, vakashandisakuvandudzwa kune ndangariro manejimendi uye kuita pane ARM64 masisitimu, nekushandiswa kwe caching zviri mukati mememory page table mapoka uye PTE descriptors. Izvi zvakawedzera kukurumidza basa paARM64-yakavakirwa multicore masisitimu, kuvandudza yakazara sisitimu mhinduro uye kuita.
Magadzirirwo akati wandei akaitwa kune pf packet sefa, sezvairi ikozvino inoona shanduko kunetiweki stack ine chekuita nekufananidza kwekushanda pane multiprocessor masisitimu, pamwe nekumhanyisa tcpdump utility ine pflog network interface inogona kuratidza mapaketi akaraswa nekuita iyo default mutemo nechiito "block" uye yakawedzera ratidziro yekurongeka kwesarudzo. paIPv4 mapaketi ekutsausa.
Uyewo Yakavandudzwa rutsigiro rweSMP multiprocessor masisitimu, semadhiraivha enguva yekupera mune network stack, kuverengera kwepaketi yeiyo loopback interface, uye vscsi_filtops module ikozvino yaendeswa kune mp-yakachengeteka chikamu, ichivandudza kushanda nesimba uye kugadzikana munzvimbo dzemultiprocessor, kunze Parallel kusunga uye yekubatanidza system mafoni anogoneka, pamwe chete nekushanda nematafura eUDP eIPv4 uye IPv6 uye rubatsiro rwakawedzerwa pakutumira panguva imwe chete yeUDP mapaketi kubva pakuyerera kwakasiyana, iyo inogonesa kushanda mumamiriro ezvinhu akakwirira.
Tsigiro yekufona isina kunanga system uchishandisa syscall basa rabviswa. Iyi gadziriso, yakasanganiswa nepinsyscalls, inobvumidza iwe kudzima yakananga kupinda kune system mafoni pasina kushandisa hoko dzakapihwa mu libc. Nekuda kweizvozvo, mapakeji anofona zvakananga kunharembozha, sePerl neGo, akagadziridzwa kuti ashandise chete mabasa akapihwa ne libc, izvo zvinovandudza kuchengetedzwa uye kuenderana kwemaitiro ekufona kwemaitiro muhurongwa.
Of the dzimwe shanduko:
- Yakakosha zvigadziriso kune zvishandiso seLibreSSL, OpenSSH, GCC uye Perl, pakati pevamwe.
- IPv6 Tsigiro IPv6 rutsigiro rwakawedzerwa kune ppp network interface.
- PaArM64 masisitimu, kushandiswa kwePointer Authentication (PAC) uye maBTI masisitimu kwakawedzerwa.
Iyo netstat yekushandisa yakagadziridzwa kuratidza yakadzama manhamba ekubudirira kwenzira caching. - Yakawedzera machdep.retpoline sysctl kudzora kugonesa kweiyo retpoline mechanism, inodzivirira kubva kuSpecter kurwiswa.
- Iyo DRM (Direct Rendering Manager) dhizaini yekumisikidzwa ikozvino yawiriraniswa neLinux kernel 6.6.19 (yaimbova 6.1.55).
- Tsigiro yemidziyo mitsva yakawedzerwa, kusanganisira madhiraivha ane hukama neakasiyana eSoC zvikamu, tsigiro yeEthernet controllers, uye kuendesa network mashandiro kudivi retiweki makadhi.
- Iyo uaudio audio subsystem ikozvino inobvumira kubatana kweakawanda madhiraivha emidziyo yekuteerera.
- Yakawedzera apldcp uye apldrm madhiraivha ekuratidzira madhiraivha anoshandiswa paApple zvishandiso. Pamusoro pezvo, yeApple Powerbook, kugona kudzora kiibhodhi backlight kwaitwa.
pakupedzisira kana uri kufarira kuziva zvakawanda nezvazvo, unogona kutarisa ruzivo mu inotevera chinongedzo.