Post AnIsbfmebLxDDF9v5U by tisha@htt.social
(DIR) More posts by tisha@htt.social
(DIR) Post #AnIpJopTvpLMByHDGK by mothcompute@vixen.zone
2024-10-23T15:55:32Z
1 likes, 0 repeats
i have successfully managed to turn 'create a website' into 'write a database server' into 'write two different memory allocators'
(DIR) Post #AnIqQPlHdC2kQY1PgO by mothcompute@vixen.zone
2024-10-23T16:07:55Z
0 likes, 0 repeats
im planning to clear out the entire address space and link all my code as a flat binary and write a new threading library and syscall interface and a slab allocator to mmap files with. for my website i mean
(DIR) Post #AnIqSQVJqEXvJEVvea by mothcompute@vixen.zone
2024-10-23T16:08:18Z
0 likes, 0 repeats
im never finishing this am i
(DIR) Post #AnIrOgfTu0rWEj32xs by mothcompute@vixen.zone
2024-10-23T16:18:48Z
0 likes, 1 repeats
@mei the only tool i know how to make is a hammer and everything is looking like a virtual memory shaped nail
(DIR) Post #AnIrYf8ET946MrFjZw by gorplop@pleroma.m68k.church
2024-10-23T16:17:33.328845Z
1 likes, 0 repeats
@mothcompute what if you just DMA'd the HTTP responses into the ne1000
(DIR) Post #AnIrYfo3xcWeSap8mO by mothcompute@vixen.zone
2024-10-23T16:20:36Z
0 likes, 0 repeats
@gorplop i really hate to admit it but i already unironically had that idea earlier
(DIR) Post #AnIsX67PGJo3RMgU0O by RavenLuni@furry.engineer
2024-10-23T16:31:32Z
0 likes, 0 repeats
@mothcompute That is exactly the way I tend to do things
(DIR) Post #AnIsbfmebLxDDF9v5U by tisha@htt.social
2024-10-23T16:32:21Z
0 likes, 0 repeats
@mothcompute Getting stuck in the wheel reinventors' club 🔥
(DIR) Post #AnIuzpvoivRbXm5whs by 7331@mastodon.de
2024-10-23T16:59:06Z
1 likes, 0 repeats
@mothcompute the "turning everything into osdev" challenge, i see
(DIR) Post #AnJ0jC8hVAmLDpZKb2 by mothcompute@vixen.zone
2024-10-23T18:03:22Z
0 likes, 0 repeats
@domi if you map address 0 execute only you can store code there and use it as a null page at the same time
(DIR) Post #AnJO65xOx2LJedAknA by mothcompute@vixen.zone
2024-10-23T22:25:13Z
0 likes, 0 repeats
what stage of web development is it where you have to figure out how to implement aslr for a static flat binary
(DIR) Post #AnJOshVycFGu2NWPUe by mothcompute@vixen.zone
2024-10-23T22:34:01Z
0 likes, 0 repeats
my thinking is i can compile the entire program to one assembly file, then when starting the program i reorder all the functions in .text and assemble it ahead of time. for extra brute force protection i can strip out the nop padding but that might cause Performance Issues
(DIR) Post #AnJOy98xJvgtArLnXM by mothcompute@vixen.zone
2024-10-23T22:35:00Z
0 likes, 0 repeats
someone good at aslr tell me if im stupider than i think im being
(DIR) Post #AnJPz4g9VN9PZTstNI by nil@furry.engineer
2024-10-23T22:46:22Z
0 likes, 0 repeats
@mothcompute i don't believe you're supposed to get there
(DIR) Post #AnJQEtove042WmXFke by mothcompute@vixen.zone
2024-10-23T22:49:13Z
0 likes, 0 repeats
@multisn8 im not insane i just want my entire database server to be mapped into the address space of the client
(DIR) Post #AnJQmpfnZOv9VkRfd2 by mothcompute@vixen.zone
2024-10-23T22:55:21Z
0 likes, 0 repeats
@multisn8 evil and twisted 'user generated content.' and i do not trust my code to be rce free
(DIR) Post #AnJQrjdrQC0CFlsPoW by mothcompute@vixen.zone
2024-10-23T22:56:15Z
0 likes, 0 repeats
@multisn8 not since i figured out how virtual memory works i dont think
(DIR) Post #AnJRRrVTeqGV4RBLjk by mothcompute@vixen.zone
2024-10-23T23:02:46Z
0 likes, 0 repeats
@multisn8 well the code is only mapped once but likely at a fixed address and there is so much data you can map. the entire rest of the address space is reserved for stacks, tls, and the file map slab allocator, and my code has to manage that without some return-to-whatever or other attack
(DIR) Post #AnJRhFxp0bmvGbmSMi by mothcompute@vixen.zone
2024-10-23T23:05:33Z
0 likes, 0 repeats
update this is still kind of stupid yeah. ill probably just figure out how i can put the code segment *inside* the slab allocator, so it can be at a harder to guess address
(DIR) Post #AnJS2x5nquLd6qrK2S by mothcompute@vixen.zone
2024-10-23T23:09:28Z
0 likes, 0 repeats
@multisn8 but then i cant do my slab allocator idea the way i want...
(DIR) Post #AnJTH7pooGsyQyhkLA by howtophil@mastodon.social
2024-10-23T23:23:13Z
0 likes, 0 repeats
@mothcompute I had this assignment in my HTML class in college... and I wrote a basic web server in Tcl/Tk... I was docked points for doing too much
(DIR) Post #AnK9vGukfSKQFgq0gq by jbowen@mast.hpc.social
2024-10-24T07:21:05Z
0 likes, 0 repeats
@mothcompute If you wish to make an apple pie from scratch, you must first invent the universe
(DIR) Post #AnUKWCB9rZcrLeyc0e by lua@vixen.zone
2024-10-29T05:06:56Z
0 likes, 0 repeats
@mothcompute yeah !
(DIR) Post #AnULyCJF4Vd9obfrJA by mothcompute@vixen.zone
2024-10-29T05:23:11Z
0 likes, 0 repeats
@lua thank you for believing in me lua
(DIR) Post #AnUM9tuBK8xeD7X62a by lua@vixen.zone
2024-10-29T05:25:19Z
0 likes, 0 repeats
@mothcompute HEHEHEHEHEHE